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HDR formats support and HDR making. Code only.

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pull/1474/head
Fedor Morozov 12 years ago
parent eff6dccb3b
commit 7469c935f3
12 changed files with 1378 additions and 4 deletions
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  1. 372
      CMakeFiles/2.8.11.1/CompilerIdCXX/CMakeCXXCompilerId.cpp
  2. 2
      modules/highgui/CMakeLists.txt
  3. 152
      modules/highgui/src/grfmt_hdr.cpp
  4. 88
      modules/highgui/src/grfmt_hdr.hpp
  5. 98
      modules/highgui/src/grfmt_tiff.cpp
  6. 5
      modules/highgui/src/grfmt_tiff.hpp
  7. 1
      modules/highgui/src/grfmts.hpp
  8. 5
      modules/highgui/src/loadsave.cpp
  9. 450
      modules/highgui/src/rgbe.cpp
  10. 92
      modules/highgui/src/rgbe.hpp
  11. 2
      modules/photo/include/opencv2/photo.hpp
  12. 115
      modules/photo/src/hdr_fusion.cpp

372
CMakeFiles/2.8.11.1/CompilerIdCXX/CMakeCXXCompilerId.cpp
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@ -0,0 +1,372 @@
/* This source file must have a .cpp extension so that all C++ compilers
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example. */
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# error "A C compiler has been selected for C++."
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Version date components: YYYY=Year, MM=Month, DD=Day */
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/* __INTEL_COMPILER = VRP */
# define COMPILER_VERSION_MAJOR DEC(__INTEL_COMPILER/100)
# define COMPILER_VERSION_MINOR DEC(__INTEL_COMPILER/10 % 10)
# define COMPILER_VERSION_PATCH DEC(__INTEL_COMPILER % 10)
# if defined(__INTEL_COMPILER_BUILD_DATE)
/* __INTEL_COMPILER_BUILD_DATE = YYYYMMDD */
# define COMPILER_VERSION_TWEAK DEC(__INTEL_COMPILER_BUILD_DATE)
# endif
#elif defined(__PATHCC__)
# define COMPILER_ID "PathScale"
# define COMPILER_VERSION_MAJOR DEC(__PATHCC__)
# define COMPILER_VERSION_MINOR DEC(__PATHCC_MINOR__)
# if defined(__PATHCC_PATCHLEVEL__)
# define COMPILER_VERSION_PATCH DEC(__PATHCC_PATCHLEVEL__)
# endif
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# define COMPILER_ID "Clang"
# define COMPILER_VERSION_MAJOR DEC(__clang_major__)
# define COMPILER_VERSION_MINOR DEC(__clang_minor__)
# define COMPILER_VERSION_PATCH DEC(__clang_patchlevel__)
#elif defined(__BORLANDC__) && defined(__CODEGEARC_VERSION__)
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# define COMPILER_VERSION_MINOR HEX(__BORLANDC__ & 0xFF)
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/* __WATCOMC__ = VVRR */
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# define COMPILER_VERSION_MINOR DEC(__WATCOMC__ % 100)
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/* __HP_aCC = VVRRPP */
# define COMPILER_VERSION_MAJOR DEC(__HP_aCC/10000)
# define COMPILER_VERSION_MINOR DEC(__HP_aCC/100 % 100)
# define COMPILER_VERSION_PATCH DEC(__HP_aCC % 100)
#elif defined(__DECCXX)
# define COMPILER_ID "Compaq"
/* __DECCXX_VER = VVRRTPPPP */
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# define COMPILER_VERSION_MINOR DEC(__DECCXX_VER/100000 % 100)
# define COMPILER_VERSION_PATCH DEC(__DECCXX_VER % 10000)
#elif defined(__IBMCPP__)
# if defined(__COMPILER_VER__)
# define COMPILER_ID "zOS"
# else
# if __IBMCPP__ >= 800
# define COMPILER_ID "XL"
# else
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/* __IBMCPP__ = VRP */
# define COMPILER_VERSION_MAJOR DEC(__IBMCPP__/100)
# define COMPILER_VERSION_MINOR DEC(__IBMCPP__/10 % 10)
# define COMPILER_VERSION_PATCH DEC(__IBMCPP__ % 10)
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# define COMPILER_ID "PGI"
# define COMPILER_VERSION_MAJOR DEC(__PGIC__)
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# define COMPILER_ID "Cray"
# define COMPILER_VERSION_MAJOR DEC(_RELEASE)
# define COMPILER_VERSION_MINOR DEC(_RELEASE_MINOR)
#elif defined(__TI_COMPILER_VERSION__)
# define COMPILER_ID "TI"
/* __TI_COMPILER_VERSION__ = VVVRRRPPP */
# define COMPILER_VERSION_MAJOR DEC(__TI_COMPILER_VERSION__/1000000)
# define COMPILER_VERSION_MINOR DEC(__TI_COMPILER_VERSION__/1000 % 1000)
# define COMPILER_VERSION_PATCH DEC(__TI_COMPILER_VERSION__ % 1000)
#elif defined(__SCO_VERSION__)
# define COMPILER_ID "SCO"
#elif defined(__GNUC__)
# define COMPILER_ID "GNU"
# define COMPILER_VERSION_MAJOR DEC(__GNUC__)
# define COMPILER_VERSION_MINOR DEC(__GNUC_MINOR__)
# if defined(__GNUC_PATCHLEVEL__)
# define COMPILER_VERSION_PATCH DEC(__GNUC_PATCHLEVEL__)
# endif
#elif defined(_MSC_VER)
# define COMPILER_ID "MSVC"
/* _MSC_VER = VVRR */
# define COMPILER_VERSION_MAJOR DEC(_MSC_VER / 100)
# define COMPILER_VERSION_MINOR DEC(_MSC_VER % 100)
# if defined(_MSC_FULL_VER)
# if _MSC_VER >= 1400
/* _MSC_FULL_VER = VVRRPPPPP */
# define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 100000)
# else
/* _MSC_FULL_VER = VVRRPPPP */
# define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 10000)
# endif
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# if defined(_MSC_BUILD)
# define COMPILER_VERSION_TWEAK DEC(_MSC_BUILD)
# endif
/* Analog VisualDSP++ >= 4.5.6 */
#elif defined(__VISUALDSPVERSION__)
# define COMPILER_ID "ADSP"
/* __VISUALDSPVERSION__ = 0xVVRRPP00 */
# define COMPILER_VERSION_MAJOR HEX(__VISUALDSPVERSION__>>24)
# define COMPILER_VERSION_MINOR HEX(__VISUALDSPVERSION__>>16 & 0xFF)
# define COMPILER_VERSION_PATCH HEX(__VISUALDSPVERSION__>>8 & 0xFF)
/* Analog VisualDSP++ < 4.5.6 */
#elif defined(__ADSPBLACKFIN__) || defined(__ADSPTS__) || defined(__ADSP21000__)
# define COMPILER_ID "ADSP"
#elif defined(_SGI_COMPILER_VERSION) || defined(_COMPILER_VERSION)
# define COMPILER_ID "MIPSpro"
# if defined(_SGI_COMPILER_VERSION)
/* _SGI_COMPILER_VERSION = VRP */
# define COMPILER_VERSION_MAJOR DEC(_SGI_COMPILER_VERSION/100)
# define COMPILER_VERSION_MINOR DEC(_SGI_COMPILER_VERSION/10 % 10)
# define COMPILER_VERSION_PATCH DEC(_SGI_COMPILER_VERSION % 10)
# else
/* _COMPILER_VERSION = VRP */
# define COMPILER_VERSION_MAJOR DEC(_COMPILER_VERSION/100)
# define COMPILER_VERSION_MINOR DEC(_COMPILER_VERSION/10 % 10)
# define COMPILER_VERSION_PATCH DEC(_COMPILER_VERSION % 10)
# endif
/* This compiler is either not known or is too old to define an
identification macro. Try to identify the platform and guess that
it is the native compiler. */
#elif defined(__sgi)
# define COMPILER_ID "MIPSpro"
#elif defined(__hpux) || defined(__hpua)
# define COMPILER_ID "HP"
#else /* unknown compiler */
# define COMPILER_ID ""
#endif
/* Construct the string literal in pieces to prevent the source from
getting matched. Store it in a pointer rather than an array
because some compilers will just produce instructions to fill the
array rather than assigning a pointer to a static array. */
char const* info_compiler = "INFO" ":" "compiler[" COMPILER_ID "]";
/* Identify known platforms by name. */
#if defined(__linux) || defined(__linux__) || defined(linux)
# define PLATFORM_ID "Linux"
#elif defined(__CYGWIN__)
# define PLATFORM_ID "Cygwin"
#elif defined(__MINGW32__)
# define PLATFORM_ID "MinGW"
#elif defined(__APPLE__)
# define PLATFORM_ID "Darwin"
#elif defined(_WIN32) || defined(__WIN32__) || defined(WIN32)
# define PLATFORM_ID "Windows"
#elif defined(__FreeBSD__) || defined(__FreeBSD)
# define PLATFORM_ID "FreeBSD"
#elif defined(__NetBSD__) || defined(__NetBSD)
# define PLATFORM_ID "NetBSD"
#elif defined(__OpenBSD__) || defined(__OPENBSD)
# define PLATFORM_ID "OpenBSD"
#elif defined(__sun) || defined(sun)
# define PLATFORM_ID "SunOS"
#elif defined(_AIX) || defined(__AIX) || defined(__AIX__) || defined(__aix) || defined(__aix__)
# define PLATFORM_ID "AIX"
#elif defined(__sgi) || defined(__sgi__) || defined(_SGI)
# define PLATFORM_ID "IRIX"
#elif defined(__hpux) || defined(__hpux__)
# define PLATFORM_ID "HP-UX"
#elif defined(__HAIKU__)
# define PLATFORM_ID "Haiku"
#elif defined(__BeOS) || defined(__BEOS__) || defined(_BEOS)
# define PLATFORM_ID "BeOS"
#elif defined(__QNX__) || defined(__QNXNTO__)
# define PLATFORM_ID "QNX"
#elif defined(__tru64) || defined(_tru64) || defined(__TRU64__)
# define PLATFORM_ID "Tru64"
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# define PLATFORM_ID "RISCos"
#elif defined(__sinix) || defined(__sinix__) || defined(__SINIX__)
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# define PLATFORM_ID "UNIX_SV"
#elif defined(__bsdos__)
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# define PLATFORM_ID "OSF1"
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# define PLATFORM_ID "Xenix"
#else /* unknown platform */
# define PLATFORM_ID ""
#endif
/* For windows compilers MSVC and Intel we can determine
the architecture of the compiler being used. This is because
the compilers do not have flags that can change the architecture,
but rather depend on which compiler is being used
*/
#if defined(_WIN32) && defined(_MSC_VER)
# if defined(_M_IA64)
# define ARCHITECTURE_ID "IA64"
# elif defined(_M_X64) || defined(_M_AMD64)
# define ARCHITECTURE_ID "x64"
# elif defined(_M_IX86)
# define ARCHITECTURE_ID "X86"
# elif defined(_M_ARM)
# define ARCHITECTURE_ID "ARM"
# elif defined(_M_MIPS)
# define ARCHITECTURE_ID "MIPS"
# elif defined(_M_SH)
# define ARCHITECTURE_ID "SHx"
# else /* unknown architecture */
# define ARCHITECTURE_ID ""
# endif
#else
# define ARCHITECTURE_ID ""
#endif
/* Convert integer to decimal digit literals. */
#define DEC(n) \
('0' + (((n) / 10000000)%10)), \
('0' + (((n) / 1000000)%10)), \
('0' + (((n) / 100000)%10)), \
('0' + (((n) / 10000)%10)), \
('0' + (((n) / 1000)%10)), \
('0' + (((n) / 100)%10)), \
('0' + (((n) / 10)%10)), \
('0' + ((n) % 10))
/* Convert integer to hex digit literals. */
#define HEX(n) \
('0' + ((n)>>28 & 0xF)), \
('0' + ((n)>>24 & 0xF)), \
('0' + ((n)>>20 & 0xF)), \
('0' + ((n)>>16 & 0xF)), \
('0' + ((n)>>12 & 0xF)), \
('0' + ((n)>>8 & 0xF)), \
('0' + ((n)>>4 & 0xF)), \
('0' + ((n) & 0xF))
/* Construct a string literal encoding the version number components. */
#ifdef COMPILER_VERSION_MAJOR
char const info_version[] = {
'I', 'N', 'F', 'O', ':',
'c','o','m','p','i','l','e','r','_','v','e','r','s','i','o','n','[',
COMPILER_VERSION_MAJOR,
# ifdef COMPILER_VERSION_MINOR
'.', COMPILER_VERSION_MINOR,
# ifdef COMPILER_VERSION_PATCH
'.', COMPILER_VERSION_PATCH,
# ifdef COMPILER_VERSION_TWEAK
'.', COMPILER_VERSION_TWEAK,
# endif
# endif
# endif
']','\0'};
#endif
/* Construct the string literal in pieces to prevent the source from
getting matched. Store it in a pointer rather than an array
because some compilers will just produce instructions to fill the
array rather than assigning a pointer to a static array. */
char const* info_platform = "INFO" ":" "platform[" PLATFORM_ID "]";
char const* info_arch = "INFO" ":" "arch[" ARCHITECTURE_ID "]";
/*--------------------------------------------------------------------------*/
int main(int argc, char* argv[])
{
int require = 0;
require += info_compiler[argc];
require += info_platform[argc];
#ifdef COMPILER_VERSION_MAJOR
require += info_version[argc];
#endif
(void)argv;
return require;
}

2
modules/highgui/CMakeLists.txt
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@ -55,6 +55,8 @@ file(GLOB grfmt_hdrs src/grfmt*.hpp)
file(GLOB grfmt_srcs src/grfmt*.cpp)
list(APPEND grfmt_hdrs src/bitstrm.hpp)
list(APPEND grfmt_srcs src/bitstrm.cpp)
list(APPEND grfmt_hdrs src/rgbe.hpp)
list(APPEND grfmt_srcs src/rgbe.cpp)
source_group("Src\\grfmts" FILES ${grfmt_hdrs} ${grfmt_srcs})

152
modules/highgui/src/grfmt_hdr.cpp
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@ -0,0 +1,152 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "grfmt_hdr.hpp"
#include "rgbe.hpp"
namespace cv
{
HdrDecoder::HdrDecoder()
{
m_signature = "#?RGBE";
m_signature_alt = "#?RADIANCE";
file = NULL;
m_type = CV_32FC3;
}
HdrDecoder::~HdrDecoder()
{
}
size_t HdrDecoder::signatureLength() const
{
return m_signature.size() > m_signature_alt.size() ?
m_signature.size() : m_signature_alt.size();
}
bool HdrDecoder::readHeader()
{
file = fopen(m_filename.c_str(), "rb");
if(!file) {
CV_Error(Error::StsError, "HDR decoder: can't open file");
}
RGBE_ReadHeader(file, &m_width, &m_height, NULL);
if(m_width <= 0 || m_height <= 0) {
CV_Error(Error::StsError, "HDR decoder: invalid image size");
}
return true;
}
bool HdrDecoder::readData(Mat& img)
{
if(!file) {
readHeader();
}
if(img.cols != m_width || img.rows != m_height ||
img.type() != CV_32FC3) {
CV_Error(Error::StsError, "HDR decoder: bad mat");
}
RGBE_ReadPixels_RLE(file, const_cast<float*>(img.ptr<float>()), img.cols, img.rows);
fclose(file); file = NULL;
return true;
}
bool HdrDecoder::checkSignature( const String& signature ) const
{
if(signature.size() >= (m_signature.size()) &&
!memcmp(signature.c_str(), m_signature.c_str(), m_signature.size()))
return true;
if(signature.size() >= (m_signature.size()) &&
!memcmp(signature.c_str(), m_signature_alt.c_str(), m_signature_alt.size()))
return true;
return false;
}
ImageDecoder HdrDecoder::newDecoder() const
{
return new HdrDecoder;
}
HdrEncoder::HdrEncoder()
{
m_description = "Radiance HDR (*.hdr;*.pic)";
}
HdrEncoder::~HdrEncoder()
{
}
bool HdrEncoder::write( const Mat& img, const std::vector<int>& params )
{
if(img.type() != CV_32FC3) {
CV_Error(Error::StsBadArg, "HDR encoder: need 32FC3 mat");
}
if(!(params.empty() || params[0] == HDR_NONE || params[0] == HDR_RLE)) {
CV_Error(Error::StsBadArg, "HDR encoder: wrong compression param");
}
FILE *fout = fopen(m_filename.c_str(), "wb");
if(!fout) {
CV_Error(Error::StsError, "HDR encoder: can't open file");
}
RGBE_WriteHeader(fout, img.cols, img.rows, NULL);
if(params.empty() || params[0] == HDR_RLE) {
RGBE_WritePixels_RLE(fout, const_cast<float*>(img.ptr<float>()), img.cols, img.rows);
} else {
RGBE_WritePixels(fout, const_cast<float*>(img.ptr<float>()), img.cols * img.rows);
}
fclose(fout);
return true;
}
ImageEncoder HdrEncoder::newEncoder() const
{
return new HdrEncoder;
}
bool HdrEncoder::isFormatSupported( int depth ) const {
return depth == CV_32F;
}
}

88
modules/highgui/src/grfmt_hdr.hpp
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@ -0,0 +1,88 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifndef _GRFMT_HDR_H_
#define _GRFMT_HDR_H_
#include "grfmt_base.hpp"
namespace cv
{
enum HdrCompression
{
HDR_NONE = 0,
HDR_RLE = 1
};
// Radiance rgbe (.hdr) reader
class HdrDecoder : public BaseImageDecoder
{
public:
HdrDecoder();
~HdrDecoder();
bool readHeader();
bool readData( Mat& img );
bool checkSignature( const String& signature ) const;
ImageDecoder newDecoder() const;
size_t signatureLength() const;
protected:
String m_signature_alt;
FILE *file;
};
// ... writer
class HdrEncoder : public BaseImageEncoder
{
public:
HdrEncoder();
~HdrEncoder();
bool write( const Mat& img, const std::vector<int>& params );
ImageEncoder newEncoder() const;
bool isFormatSupported( int depth ) const;
protected:
};
}
#endif/*_GRFMT_HDR_H_*/

98
modules/highgui/src/grfmt_tiff.cpp
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@ -71,6 +71,7 @@ TiffDecoder::TiffDecoder()
TIFFSetErrorHandler( GrFmtSilentTIFFErrorHandler );
TIFFSetWarningHandler( GrFmtSilentTIFFErrorHandler );
}
m_hdr = false;
}
@ -133,6 +134,14 @@ bool TiffDecoder::readHeader()
m_width = wdth;
m_height = hght;
if((bpp == 32 && ncn == 3) || photometric == PHOTOMETRIC_LOGLUV)
{
m_type = CV_32FC3;
m_hdr = true;
return true;
}
m_hdr = false;
if( bpp > 8 &&
((photometric != 2 && photometric != 1) ||
(ncn != 1 && ncn != 3 && ncn != 4)))
@ -171,6 +180,10 @@ bool TiffDecoder::readHeader()
bool TiffDecoder::readData( Mat& img )
{
if(m_hdr && img.type() == CV_32FC3)
{
return readHdrData(img);
}
bool result = false;
bool color = img.channels() > 1;
uchar* data = img.data;
@ -380,6 +393,46 @@ bool TiffDecoder::readData( Mat& img )
return result;
}
bool TiffDecoder::readHdrData(Mat& img)
{
int rows_per_strip = 0, photometric = 0;
if(!m_tif)
{
return false;
}
TIFF *tif = static_cast<TIFF*>(m_tif);
TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &rows_per_strip);
TIFFGetField( tif, TIFFTAG_PHOTOMETRIC, &photometric );
TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_FLOAT);
int size = 3 * m_width * m_height * sizeof (float);
int strip_size = 3 * m_width * rows_per_strip;
float *ptr = img.ptr<float>();
for (size_t i = 0; i < TIFFNumberOfStrips(tif); i++, ptr += strip_size)
{
TIFFReadEncodedStrip(tif, i, ptr, size);
size -= strip_size * sizeof(float);
}
close();
ptr = img.ptr<float>();
for(size_t i = 0; i < img.total(); i++, ptr += 3)
{
if(photometric == PHOTOMETRIC_LOGLUV)
{
float r = 3.240479f * ptr[0] + -1.537150f * ptr[1] + -0.498535f * ptr[2];
float g = -0.969256f * ptr[0] + 1.875991f * ptr[1] + 0.041556f * ptr[2];
float b = 0.055648f * ptr[0] + -0.204043f * ptr[1] + 1.057311f * ptr[2];
ptr[0] = b; ptr[1] = g; ptr[2] = r;
}
else
{
float tmp = ptr[0];
ptr[0] = ptr[2];
ptr[2] = tmp;
}
}
return true;
}
#endif
//////////////////////////////////////////////////////////////////////////////////////////
@ -405,7 +458,11 @@ ImageEncoder TiffEncoder::newEncoder() const
bool TiffEncoder::isFormatSupported( int depth ) const
{
return depth == CV_8U || depth == CV_16U;
#ifdef HAVE_TIFF
return depth == CV_8U || depth == CV_16U || depth == CV_32F;
#else
return depth == CV_8U || depth == CV_16U;
#endif
}
void TiffEncoder::writeTag( WLByteStream& strm, TiffTag tag,
@ -557,6 +614,39 @@ bool TiffEncoder::writeLibTiff( const Mat& img, const std::vector<int>& params)
return true;
}
bool TiffEncoder::writeHdr(const Mat& img)
{
float *ptr = const_cast<float*>(img.ptr<float>());
for(size_t i = 0; i < img.total(); i++, ptr += 3)
{
float x = 0.412453f * ptr[2] + 0.357580f * ptr[1] + 0.180423f * ptr[0];
float y = 0.212671f * ptr[2] + 0.715160f * ptr[1] + 0.072169f * ptr[0];
float z = 0.019334f * ptr[2] + 0.119193f * ptr[1] + 0.950227f * ptr[0];
ptr[0] = x; ptr[1] = y; ptr[2] = z;
}
TIFF* tif = TIFFOpen(m_filename.c_str(), "w");
if (!tif)
{
return false;
}
TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, img.cols);
TIFFSetField(tif, TIFFTAG_IMAGELENGTH, img.rows);
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_SGILOG);
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_LOGLUV);
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_FLOAT);
TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
int strip_size = 3 * img.cols;
ptr = const_cast<float*>(img.ptr<float>());
for (int i = 0; i < img.rows; i++, ptr += strip_size)
{
TIFFWriteEncodedStrip(tif, i, ptr, strip_size * sizeof(float));
}
TIFFClose(tif);
return true;
}
#endif
#ifdef HAVE_TIFF
@ -568,6 +658,12 @@ bool TiffEncoder::write( const Mat& img, const std::vector<int>& /*params*/)
int channels = img.channels();
int width = img.cols, height = img.rows;
int depth = img.depth();
#ifdef HAVE_TIFF
if(img.type() == CV_32FC3)
{
return writeHdr(img);
}
#endif
if (depth != CV_8U && depth != CV_16U)
return false;

5
modules/highgui/src/grfmt_tiff.hpp
Unescape View File

@ -53,7 +53,7 @@ enum TiffCompression
{
TIFF_UNCOMP = 1,
TIFF_HUFFMAN = 2,
TIFF_PACKBITS = 32773
TIFF_PACKBITS = 32773,
};
enum TiffByteOrder
@ -108,6 +108,8 @@ public:
protected:
void* m_tif;
int normalizeChannelsNumber(int channels) const;
bool readHdrData(Mat& img);
bool m_hdr;
};
#endif
@ -130,6 +132,7 @@ protected:
int count, int value );
bool writeLibTiff( const Mat& img, const std::vector<int>& params );
bool writeHdr( const Mat& img );
};
}

1
modules/highgui/src/grfmts.hpp
Unescape View File

@ -52,5 +52,6 @@
#include "grfmt_jpeg2000.hpp"
#include "grfmt_exr.hpp"
#include "grfmt_webp.hpp"
#include "grfmt_hdr.hpp"
#endif/*_GRFMTS_H_*/

5
modules/highgui/src/loadsave.cpp
Unescape View File

@ -47,6 +47,7 @@
#include "grfmts.hpp"
#undef min
#undef max
#include <iostream>
/****************************************************************************************\
* Image Codecs *
@ -60,6 +61,8 @@ struct ImageCodecInitializer
{
decoders.push_back( new BmpDecoder );
encoders.push_back( new BmpEncoder );
decoders.push_back( new HdrDecoder );
encoders.push_back( new HdrEncoder );
#ifdef HAVE_JPEG
decoders.push_back( new JpegDecoder );
encoders.push_back( new JpegEncoder );
@ -203,7 +206,6 @@ imread_( const String& filename, int flags, int hdrtype, Mat* mat=0 )
decoder->setSource(filename);
if( !decoder->readHeader() )
return 0;
CvSize size;
size.width = decoder->width();
size.height = decoder->height();
@ -271,7 +273,6 @@ static bool imwrite_( const String& filename, const Mat& image,
ImageEncoder encoder = findEncoder( filename );
if( encoder.empty() )
CV_Error( CV_StsError, "could not find a writer for the specified extension" );
if( !encoder->isFormatSupported(image.depth()) )
{
CV_Assert( encoder->isFormatSupported(CV_8U) );

450
modules/highgui/src/rgbe.cpp
Unescape View File

@ -0,0 +1,450 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "rgbe.hpp"
#include <math.h>
#include <malloc.h>
#include <string.h>
#include <ctype.h>
// This file contains code to read and write four byte rgbe file format
// developed by Greg Ward. It handles the conversions between rgbe and
// pixels consisting of floats. The data is assumed to be an array of floats.
// By default there are three floats per pixel in the order red, green, blue.
// (RGBE_DATA_??? values control this.) Only the mimimal header reading and
// writing is implemented. Each routine does error checking and will return
// a status value as defined below. This code is intended as a skeleton so
// feel free to modify it to suit your needs.
// Some opencv specific changes have been added:
// inline define specified, channel order changed (to ger bgr by default),
// error handler uses CV_Error.
//
// posted to http://www.graphics.cornell.edu/~bjw/
// written by Bruce Walter (bjw@graphics.cornell.edu) 5/26/95
// based on code written by Greg Ward
#define INLINE inline
/* offsets to red, green, and blue components in a data (float) pixel */
#define RGBE_DATA_RED 2
#define RGBE_DATA_GREEN 1
#define RGBE_DATA_BLUE 0
/* number of floats per pixel */
#define RGBE_DATA_SIZE 3
enum rgbe_error_codes {
rgbe_read_error,
rgbe_write_error,
rgbe_format_error,
rgbe_memory_error,
};
/* default error routine. change this to change error handling */
static int rgbe_error(int rgbe_error_code, char *msg)
{
switch (rgbe_error_code) {
case rgbe_read_error:
CV_Error(cv::Error::StsError, "RGBE read error");
break;
case rgbe_write_error:
CV_Error(cv::Error::StsError, "RGBE write error");
break;
case rgbe_format_error:
CV_Error(cv::Error::StsError, cv::String("RGBE bad file format: ") +
cv::String(msg));
break;
default:
case rgbe_memory_error:
CV_Error(cv::Error::StsError, cv::String("RGBE error: \n") +
cv::String(msg));
}
return RGBE_RETURN_FAILURE;
}
/* standard conversion from float pixels to rgbe pixels */
/* note: you can remove the "inline"s if your compiler complains about it */
static INLINE void
float2rgbe(unsigned char rgbe[4], float red, float green, float blue)
{
float v;
int e;
v = red;
if (green > v) v = green;
if (blue > v) v = blue;
if (v < 1e-32) {
rgbe[0] = rgbe[1] = rgbe[2] = rgbe[3] = 0;
}
else {
v = frexp(v,&e) * 256.0/v;
rgbe[0] = (unsigned char) (red * v);
rgbe[1] = (unsigned char) (green * v);
rgbe[2] = (unsigned char) (blue * v);
rgbe[3] = (unsigned char) (e + 128);
}
}
/* standard conversion from rgbe to float pixels */
/* note: Ward uses ldexp(col+0.5,exp-(128+8)). However we wanted pixels */
/* in the range [0,1] to map back into the range [0,1]. */
static INLINE void
rgbe2float(float *red, float *green, float *blue, unsigned char rgbe[4])
{
float f;
if (rgbe[3]) { /*nonzero pixel*/
f = ldexp(1.0,rgbe[3]-(int)(128+8));
*red = rgbe[0] * f;
*green = rgbe[1] * f;
*blue = rgbe[2] * f;
}
else
*red = *green = *blue = 0.0;
}
/* default minimal header. modify if you want more information in header */
int RGBE_WriteHeader(FILE *fp, int width, int height, rgbe_header_info *info)
{
char *programtype = "RGBE";
if (info && (info->valid & RGBE_VALID_PROGRAMTYPE))
programtype = info->programtype;
if (fprintf(fp,"#?%s\n",programtype) < 0)
return rgbe_error(rgbe_write_error,NULL);
/* The #? is to identify file type, the programtype is optional. */
if (info && (info->valid & RGBE_VALID_GAMMA)) {
if (fprintf(fp,"GAMMA=%g\n",info->gamma) < 0)
return rgbe_error(rgbe_write_error,NULL);
}
if (info && (info->valid & RGBE_VALID_EXPOSURE)) {
if (fprintf(fp,"EXPOSURE=%g\n",info->exposure) < 0)
return rgbe_error(rgbe_write_error,NULL);
}
if (fprintf(fp,"FORMAT=32-bit_rle_rgbe\n\n") < 0)
return rgbe_error(rgbe_write_error,NULL);
if (fprintf(fp, "-Y %d +X %d\n", height, width) < 0)
return rgbe_error(rgbe_write_error,NULL);
return RGBE_RETURN_SUCCESS;
}
/* minimal header reading. modify if you want to parse more information */
int RGBE_ReadHeader(FILE *fp, int *width, int *height, rgbe_header_info *info)
{
char buf[128];
int found_format;
float tempf;
int i;
found_format = 0;
if (info) {
info->valid = 0;
info->programtype[0] = 0;
info->gamma = info->exposure = 1.0;
}
if (fgets(buf,sizeof(buf)/sizeof(buf[0]),fp) == NULL)
return rgbe_error(rgbe_read_error,NULL);
if ((buf[0] != '#')||(buf[1] != '?')) {
/* if you want to require the magic token then uncomment the next line */
/*return rgbe_error(rgbe_format_error,"bad initial token"); */
}
else if (info) {
info->valid |= RGBE_VALID_PROGRAMTYPE;
for(i=0;i<sizeof(info->programtype)-1;i++) {
if ((buf[i+2] == 0) || isspace(buf[i+2]))
break;
info->programtype[i] = buf[i+2];
}
info->programtype[i] = 0;
if (fgets(buf,sizeof(buf)/sizeof(buf[0]),fp) == 0)
return rgbe_error(rgbe_read_error,NULL);
}
for(;;) {
if ((buf[0] == 0)||(buf[0] == '\n'))
return rgbe_error(rgbe_format_error,"no FORMAT specifier found");
else if (strcmp(buf,"FORMAT=32-bit_rle_rgbe\n") == 0)
break; /* format found so break out of loop */
else if (info && (sscanf(buf,"GAMMA=%g",&tempf) == 1)) {
info->gamma = tempf;
info->valid |= RGBE_VALID_GAMMA;
}
else if (info && (sscanf(buf,"EXPOSURE=%g",&tempf) == 1)) {
info->exposure = tempf;
info->valid |= RGBE_VALID_EXPOSURE;
}
if (fgets(buf,sizeof(buf)/sizeof(buf[0]),fp) == 0)
return rgbe_error(rgbe_read_error,NULL);
}
if (fgets(buf,sizeof(buf)/sizeof(buf[0]),fp) == 0)
return rgbe_error(rgbe_read_error,NULL);
if (strcmp(buf,"\n") != 0)
return rgbe_error(rgbe_format_error,
"missing blank line after FORMAT specifier");
if (fgets(buf,sizeof(buf)/sizeof(buf[0]),fp) == 0)
return rgbe_error(rgbe_read_error,NULL);
if (sscanf(buf,"-Y %d +X %d",height,width) < 2)
return rgbe_error(rgbe_format_error,"missing image size specifier");
return RGBE_RETURN_SUCCESS;
}
/* simple write routine that does not use run length encoding */
/* These routines can be made faster by allocating a larger buffer and
fread-ing and fwrite-ing the data in larger chunks */
int RGBE_WritePixels(FILE *fp, float *data, int numpixels)
{
unsigned char rgbe[4];
while (numpixels-- > 0) {
float2rgbe(rgbe,data[RGBE_DATA_RED],
data[RGBE_DATA_GREEN],data[RGBE_DATA_BLUE]);
data += RGBE_DATA_SIZE;
if (fwrite(rgbe, sizeof(rgbe), 1, fp) < 1)
return rgbe_error(rgbe_write_error,NULL);
}
return RGBE_RETURN_SUCCESS;
}
/* simple read routine. will not correctly handle run length encoding */
int RGBE_ReadPixels(FILE *fp, float *data, int numpixels)
{
unsigned char rgbe[4];
while(numpixels-- > 0) {
if (fread(rgbe, sizeof(rgbe), 1, fp) < 1)
return rgbe_error(rgbe_read_error,NULL);
rgbe2float(&data[RGBE_DATA_RED],&data[RGBE_DATA_GREEN],
&data[RGBE_DATA_BLUE],rgbe);
data += RGBE_DATA_SIZE;
}
return RGBE_RETURN_SUCCESS;
}
/* The code below is only needed for the run-length encoded files. */
/* Run length encoding adds considerable complexity but does */
/* save some space. For each scanline, each channel (r,g,b,e) is */
/* encoded separately for better compression. */
static int RGBE_WriteBytes_RLE(FILE *fp, unsigned char *data, int numbytes)
{
#define MINRUNLENGTH 4
int cur, beg_run, run_count, old_run_count, nonrun_count;
unsigned char buf[2];
cur = 0;
while(cur < numbytes) {
beg_run = cur;
/* find next run of length at least 4 if one exists */
run_count = old_run_count = 0;
while((run_count < MINRUNLENGTH) && (beg_run < numbytes)) {
beg_run += run_count;
old_run_count = run_count;
run_count = 1;
while( (beg_run + run_count < numbytes) && (run_count < 127)
&& (data[beg_run] == data[beg_run + run_count]))
run_count++;
}
/* if data before next big run is a short run then write it as such */
if ((old_run_count > 1)&&(old_run_count == beg_run - cur)) {
buf[0] = 128 + old_run_count; /*write short run*/
buf[1] = data[cur];
if (fwrite(buf,sizeof(buf[0])*2,1,fp) < 1)
return rgbe_error(rgbe_write_error,NULL);
cur = beg_run;
}
/* write out bytes until we reach the start of the next run */
while(cur < beg_run) {
nonrun_count = beg_run - cur;
if (nonrun_count > 128)
nonrun_count = 128;
buf[0] = nonrun_count;
if (fwrite(buf,sizeof(buf[0]),1,fp) < 1)
return rgbe_error(rgbe_write_error,NULL);
if (fwrite(&data[cur],sizeof(data[0])*nonrun_count,1,fp) < 1)
return rgbe_error(rgbe_write_error,NULL);
cur += nonrun_count;
}
/* write out next run if one was found */
if (run_count >= MINRUNLENGTH) {
buf[0] = 128 + run_count;
buf[1] = data[beg_run];
if (fwrite(buf,sizeof(buf[0])*2,1,fp) < 1)
return rgbe_error(rgbe_write_error,NULL);
cur += run_count;
}
}
return RGBE_RETURN_SUCCESS;
#undef MINRUNLENGTH
}
int RGBE_WritePixels_RLE(FILE *fp, float *data, int scanline_width,
int num_scanlines)
{
unsigned char rgbe[4];
unsigned char *buffer;
int i, err;
if ((scanline_width < 8)||(scanline_width > 0x7fff))
/* run length encoding is not allowed so write flat*/
return RGBE_WritePixels(fp,data,scanline_width*num_scanlines);
buffer = (unsigned char *)malloc(sizeof(unsigned char)*4*scanline_width);
if (buffer == NULL)
/* no buffer space so write flat */
return RGBE_WritePixels(fp,data,scanline_width*num_scanlines);
while(num_scanlines-- > 0) {
rgbe[0] = 2;
rgbe[1] = 2;
rgbe[2] = scanline_width >> 8;
rgbe[3] = scanline_width & 0xFF;
if (fwrite(rgbe, sizeof(rgbe), 1, fp) < 1) {
free(buffer);
return rgbe_error(rgbe_write_error,NULL);
}
for(i=0;i<scanline_width;i++) {
float2rgbe(rgbe,data[RGBE_DATA_RED],
data[RGBE_DATA_GREEN],data[RGBE_DATA_BLUE]);
buffer[i] = rgbe[0];
buffer[i+scanline_width] = rgbe[1];
buffer[i+2*scanline_width] = rgbe[2];
buffer[i+3*scanline_width] = rgbe[3];
data += RGBE_DATA_SIZE;
}
/* write out each of the four channels separately run length encoded */
/* first red, then green, then blue, then exponent */
for(i=0;i<4;i++) {
if ((err = RGBE_WriteBytes_RLE(fp,&buffer[i*scanline_width],
scanline_width)) != RGBE_RETURN_SUCCESS) {
free(buffer);
return err;
}
}
}
free(buffer);
return RGBE_RETURN_SUCCESS;
}
int RGBE_ReadPixels_RLE(FILE *fp, float *data, int scanline_width,
int num_scanlines)
{
unsigned char rgbe[4], *scanline_buffer, *ptr, *ptr_end;
int i, count;
unsigned char buf[2];
if ((scanline_width < 8)||(scanline_width > 0x7fff))
/* run length encoding is not allowed so read flat*/
return RGBE_ReadPixels(fp,data,scanline_width*num_scanlines);
scanline_buffer = NULL;
/* read in each successive scanline */
while(num_scanlines > 0) {
if (fread(rgbe,sizeof(rgbe),1,fp) < 1) {
free(scanline_buffer);
return rgbe_error(rgbe_read_error,NULL);
}
if ((rgbe[0] != 2)||(rgbe[1] != 2)||(rgbe[2] & 0x80)) {
/* this file is not run length encoded */
rgbe2float(&data[0],&data[1],&data[2],rgbe);
data += RGBE_DATA_SIZE;
free(scanline_buffer);
return RGBE_ReadPixels(fp,data,scanline_width*num_scanlines-1);
}
if ((((int)rgbe[2])<<8 | rgbe[3]) != scanline_width) {
free(scanline_buffer);
return rgbe_error(rgbe_format_error,"wrong scanline width");
}
if (scanline_buffer == NULL)
scanline_buffer = (unsigned char *)
malloc(sizeof(unsigned char)*4*scanline_width);
if (scanline_buffer == NULL)
return rgbe_error(rgbe_memory_error,"unable to allocate buffer space");
ptr = &scanline_buffer[0];
/* read each of the four channels for the scanline into the buffer */
for(i=0;i<4;i++) {
ptr_end = &scanline_buffer[(i+1)*scanline_width];
while(ptr < ptr_end) {
if (fread(buf,sizeof(buf[0])*2,1,fp) < 1) {
free(scanline_buffer);
return rgbe_error(rgbe_read_error,NULL);
}
if (buf[0] > 128) {
/* a run of the same value */
count = buf[0]-128;
if ((count == 0)||(count > ptr_end - ptr)) {
free(scanline_buffer);
return rgbe_error(rgbe_format_error,"bad scanline data");
}
while(count-- > 0)
*ptr++ = buf[1];
}
else {
/* a non-run */
count = buf[0];
if ((count == 0)||(count > ptr_end - ptr)) {
free(scanline_buffer);
return rgbe_error(rgbe_format_error,"bad scanline data");
}
*ptr++ = buf[1];
if (--count > 0) {
if (fread(ptr,sizeof(*ptr)*count,1,fp) < 1) {
free(scanline_buffer);
return rgbe_error(rgbe_read_error,NULL);
}
ptr += count;
}
}
}
}
/* now convert data from buffer into floats */
for(i=0;i<scanline_width;i++) {
rgbe[0] = scanline_buffer[i];
rgbe[1] = scanline_buffer[i+scanline_width];
rgbe[2] = scanline_buffer[i+2*scanline_width];
rgbe[3] = scanline_buffer[i+3*scanline_width];
rgbe2float(&data[RGBE_DATA_RED],&data[RGBE_DATA_GREEN],
&data[RGBE_DATA_BLUE],rgbe);
data += RGBE_DATA_SIZE;
}
num_scanlines--;
}
free(scanline_buffer);
return RGBE_RETURN_SUCCESS;
}

92
modules/highgui/src/rgbe.hpp
Unescape View File

@ -0,0 +1,92 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifndef _RGBE_HDR_H_
#define _RGBE_HDR_H_
// posted to http://www.graphics.cornell.edu/~bjw/
// written by Bruce Walter (bjw@graphics.cornell.edu) 5/26/95
// based on code written by Greg Ward
#include <stdio.h>
typedef struct {
int valid; /* indicate which fields are valid */
char programtype[16]; /* listed at beginning of file to identify it
* after "#?". defaults to "RGBE" */
float gamma; /* image has already been gamma corrected with
* given gamma. defaults to 1.0 (no correction) */
float exposure; /* a value of 1.0 in an image corresponds to
* <exposure> watts/steradian/m^2.
* defaults to 1.0 */
} rgbe_header_info;
/* flags indicating which fields in an rgbe_header_info are valid */
#define RGBE_VALID_PROGRAMTYPE 0x01
#define RGBE_VALID_GAMMA 0x02
#define RGBE_VALID_EXPOSURE 0x04
/* return codes for rgbe routines */
#define RGBE_RETURN_SUCCESS 0
#define RGBE_RETURN_FAILURE -1
/* read or write headers */
/* you may set rgbe_header_info to null if you want to */
int RGBE_WriteHeader(FILE *fp, int width, int height, rgbe_header_info *info);
int RGBE_ReadHeader(FILE *fp, int *width, int *height, rgbe_header_info *info);
/* read or write pixels */
/* can read or write pixels in chunks of any size including single pixels*/
int RGBE_WritePixels(FILE *fp, float *data, int numpixels);
int RGBE_ReadPixels(FILE *fp, float *data, int numpixels);
/* read or write run length encoded files */
/* must be called to read or write whole scanlines */
int RGBE_WritePixels_RLE(FILE *fp, float *data, int scanline_width,
int num_scanlines);
int RGBE_ReadPixels_RLE(FILE *fp, float *data, int scanline_width,
int num_scanlines);
#endif/*_RGBE_HDR_H_*/

2
modules/photo/include/opencv2/photo.hpp
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@ -80,6 +80,8 @@ CV_EXPORTS_W void fastNlMeansDenoisingColoredMulti( InputArrayOfArrays srcImgs,
float h = 3, float hColor = 3,
int templateWindowSize = 7, int searchWindowSize = 21);
CV_EXPORTS_W void makeHDR(InputArrayOfArrays srcImgs, std::vector<float> expTimes, OutputArray dst);
} // cv
#endif

115
modules/photo/src/hdr_fusion.cpp
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@ -0,0 +1,115 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "opencv2/photo.hpp"
#include "opencv2/imgproc.hpp"
namespace cv
{
static void triangleWeights(float weights[])
{
for(int i = 0; i < 128; i++) {
weights[i] = i + 1.0f;
}
for(int i = 128; i < 256; i++) {
weights[i] = 256.0f - i;
}
}
static void generateResponce(float responce[])
{
for(int i = 0; i < 256; i++) {
responce[i] = log((float)i);
}
responce[0] = responce[1];
}
void makeHDR(InputArrayOfArrays _images, std::vector<float> exp_times, OutputArray _dst)
{
std::vector<Mat> images;
_images.getMatVector(images);
if(images.empty()) {
printf("Need at least one vector image.");
}
if(images.size() != exp_times.size()) {
printf("Number of images and number of exposure times must be equal.");
}
int width = images[0].cols;
int height = images[0].rows;
for(size_t i = 0; i < images.size(); i++) {
if(images[i].cols != width || images[i].rows != height) {
printf("Image dimensions must be equal.");
}
if(images[i].type() != CV_8UC3) {
printf("Images must have CV_8UC3 type.");
}
}
_dst.create(images[0].size(), CV_32FC3);
Mat result = _dst.getMat();
float weights[256], responce[256];
triangleWeights(weights);
generateResponce(responce);
float *res_ptr = result.ptr<float>();
for(size_t pos = 0; pos < result.total(); pos++, res_ptr += 3) {
float sum[3] = {0, 0, 0};
float weight_sum = 0;
for(size_t im = 0; im < images.size(); im++) {
uchar *img_ptr = images[im].ptr() + 3 * pos;
float w = (weights[img_ptr[0]] + weights[img_ptr[1]] +
weights[img_ptr[2]]) / 3;
weight_sum += w;
for(int channel = 0; channel < 3; channel++) {
sum[channel] += w * (responce[img_ptr[channel]] - log(exp_times[im]));
}
}
for(int channel = 0; channel < 3; channel++) {
res_ptr[channel] = exp(sum[channel] / weight_sum);
}
}
}
};
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