1. Input/OutputArray optimizations;

2. Algorithm::load/save added (moved from StatModel)
3. copyrights updated; added copyright/licensing info for ffmpeg
4. some warnings from Xcode 6.x are fixed

3rdparty/ffmpeg/build_win32.txt

@@ -0,0 +1,42 @@
+The build script is to be fixed.
+Right now it assumes that 32-bit MinGW is in the system path and
+64-bit mingw is installed to c:\Apps\MinGW64.
+
+It is important that gcc is used, not g++!
+Otherwise the produced DLL will likely be dependent on libgcc_s_dw2-1.dll or similar DLL.
+While we want to make the DLLs with minimum dependencies: Win32 libraries + msvcrt.dll.
+
+ffopencv.c is really a C++ source, hence -x c++ is used.
+
+How to update opencv_ffmpeg.dll and opencv_ffmpeg_64.dll when a new version of FFMPEG is release?
+
+1. Install 32-bit MinGW + MSYS from
+   http://sourceforge.net/projects/mingw/files/Automated%20MinGW%20Installer/mingw-get-inst/
+   Let's assume, it's installed in C:\MSYS32.
+2. Install 64-bit MinGW. http://mingw-w64.sourceforge.net/
+   Let's assume, it's installed in C:\MSYS64
+3. Copy C:\MSYS32\msys to C:\MSYS64\msys. Edit C:\MSYS64\msys\etc\fstab, change C:\MSYS32 to C:\MSYS64.
+
+4. Now you have working MSYS32 and MSYS64 environments.
+   Launch, one by one, C:\MSYS32\msys\msys.bat and C:\MSYS64\msys\msys.bat to create your home directories.
+
+4. Download ffmpeg-x.y.z.tar.gz (where x.y.z denotes the actual ffmpeg version).
+   Copy it to C:\MSYS{32|64}\msys\home\<loginname> directory.
+
+5. To build 32-bit ffmpeg libraries, run C:\MSYS32\msys\msys.bat and type the following commands:
+
+   5.1. tar -xzf ffmpeg-x.y.z.tar.gz
+   5.2. mkdir build
+   5.3. cd build
+   5.4. ../ffmpeg-x.y.z/configure --enable-w32threads
+   5.5. make
+   5.6. make install
+   5.7. cd /local/lib
+   5.8. strip -g *.a
+
+6. Then repeat the same for 64-bit case. The output libs: libavcodec.a etc. need to be renamed to libavcodec64.a etc.
+
+7. Then, copy all those libs to <opencv>\3rdparty\lib\, copy the headers to <opencv>\3rdparty\include\ffmpeg_.
+
+8. Then, go to <opencv>\3rdparty\ffmpeg, edit make.bat
+   (change paths to the actual paths to your msys32 and msys64 distributions) and then run make.bat

3rdparty/ffmpeg/license.txt

@@ -0,0 +1,520 @@
+              Copyright (C) 2001 Fabrice Bellard
+
+    FFmpeg is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    FFmpeg is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with FFmpeg; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+==================================================================================
+
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
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+ of this license document, but changing it is not allowed.
+
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3rdparty/ffmpeg/readme.txt

@@ -1,42 +1,32 @@
-The build script is to be fixed.
+* On Linux and other Unix flavors OpenCV uses default or user-built ffmpeg/libav libraries.
-Right now it assumes that 32-bit MinGW is in the system path and
+  If user builds ffmpeg/libav from source and wants OpenCV to stay BSD library, not GPL/LGPL,
-64-bit mingw is installed to c:\Apps\MinGW64.
+  he/she should use --enabled-shared configure flag and make sure that no GPL components are
-
+  enabled (some notable examples are x264 (H264 encoder) and libac3 (Dolby AC3 audio codec)).
-It is important that gcc is used, not g++!
+  See https://www.ffmpeg.org/legal.html for details.
-Otherwise the produced DLL will likely be dependent on libgcc_s_dw2-1.dll or similar DLL.
+  
-While we want to make the DLLs with minimum dependencies: Win32 libraries + msvcrt.dll.
+  If you want to play very safe and do not want to use FFMPEG at all, regardless of whether it's installed on
-
+  your system or not, configure and build OpenCV using CMake with WITH_FFMPEG=OFF flag. OpenCV will then use
-ffopencv.c is really a C++ source, hence -x c++ is used.
+  AVFoundation (OSX), GStreamer (Linux) or other available backends supported by opencv_videoio module.
-
+  
-How to update opencv_ffmpeg.dll and opencv_ffmpeg_64.dll when a new version of FFMPEG is release?
+  There is also our self-contained motion jpeg codec, which you can use without any worries.
-
+  It handles CV_FOURCC('M', 'J', 'P', 'G') streams within an AVI container (".avi").
-1. Install 32-bit MinGW + MSYS from
+  
-   http://sourceforge.net/projects/mingw/files/Automated%20MinGW%20Installer/mingw-get-inst/
+* On Windows OpenCV uses pre-built ffmpeg binaries, built with proper flags (without GPL components) and
-   Let's assume, it's installed in C:\MSYS32.
+  wrapped with simple, stable OpenCV-compatible API.
-2. Install 64-bit MinGW. http://mingw-w64.sourceforge.net/
+  The binaries are opencv_ffmpeg.dll (version for 32-bit Windows) and
-   Let's assume, it's installed in C:\MSYS64
+  opencv_ffmpeg_64.dll (version for 64-bit Windows).
-3. Copy C:\MSYS32\msys to C:\MSYS64\msys. Edit C:\MSYS64\msys\etc\fstab, change C:\MSYS32 to C:\MSYS64.
+  
-
+  See build_win32.txt for the build instructions, if you want to rebuild opencv_ffmpeg*.dll from scratch.
-4. Now you have working MSYS32 and MSYS64 environments.
+
-   Launch, one by one, C:\MSYS32\msys\msys.bat and C:\MSYS64\msys\msys.bat to create your home directories.
+  The pre-built opencv_ffmpeg*.dll is:
-
+  * LGPL library, not BSD libraries.
-4. Download ffmpeg-x.y.z.tar.gz (where x.y.z denotes the actual ffmpeg version).
+  * Loaded at runtime by opencv_videoio module.
-   Copy it to C:\MSYS{32|64}\msys\home\<loginname> directory.
+    If it succeeds, ffmpeg can be used to decode/encode videos;
-
+    otherwise, other API is used.
-5. To build 32-bit ffmpeg libraries, run C:\MSYS32\msys\msys.bat and type the following commands:
+
-
+  If LGPL/GPL software can not be supplied with your OpenCV-based product, simply exclude
-   5.1. tar -xzf ffmpeg-x.y.z.tar.gz
+  opencv_ffmpeg*.dll from your distribution; OpenCV will stay fully functional except for the ability to
-   5.2. mkdir build
+  decode/encode videos using FFMPEG (though, it may still be able to do that using other API,
-   5.3. cd build
+  such as Video for Windows, Windows Media Foundation or our self-contained motion jpeg codec).
-   5.4. ../ffmpeg-x.y.z/configure --enable-w32threads
+  
-   5.5. make
+  See license.txt for the FFMPEG copyright notice and the licensing terms.
-   5.6. make install
-   5.7. cd /local/lib
-   5.8. strip -g *.a
-
-6. Then repeat the same for 64-bit case. The output libs: libavcodec.a etc. need to be renamed to libavcodec64.a etc.
-
-7. Then, copy all those libs to <opencv>\3rdparty\lib\, copy the headers to <opencv>\3rdparty\include\ffmpeg_.
-
-8. Then, go to <opencv>\3rdparty\ffmpeg, edit make.bat
-   (change paths to the actual paths to your msys32 and msys64 distributions) and then run make.bat

3rdparty/readme.txt

@@ -6,41 +6,34 @@ In order to use these versions of libraries instead of system ones on UNIX syste
 should use BUILD_<library_name> CMake flags (for example, BUILD_PNG for the libpng library).
 
 ------------------------------------------------------------------------------------
-libjpeg 8d (8.4)  -   The Independent JPEG Group's JPEG software.
+libjpeg               The Independent JPEG Group's JPEG software.
                       Copyright (C) 1991-2012, Thomas G. Lane, Guido Vollbeding.
                       See IGJ home page http://www.ijg.org
                       for details and links to the source code
 
-                      HAVE_JPEG preprocessor flag must be set to make imgcodecs use libjpeg.
+                      WITH_JPEG CMake option must be ON to add libjpeg support to imgcodecs.
-                      On UNIX systems configure script takes care of it.
 ------------------------------------------------------------------------------------
-libpng 1.5.12     -   Portable Network Graphics library.
+libpng                Portable Network Graphics library.
                       Copyright (c) 2004, 2006-2012 Glenn Randers-Pehrson.
                       See libpng home page http://www.libpng.org
                       for details and links to the source code
 
-                      HAVE_PNG preprocessor flag must be set to make imgcodecs use libpng.
+                      WITH_PNG CMake option must be ON to add libpng support to imgcodecs.
-                      On UNIX systems configure script takes care of it.
 ------------------------------------------------------------------------------------
-libtiff 4.0.2     -   Tag Image File Format (TIFF) Software
+libtiff               Tag Image File Format (TIFF) Software
                       Copyright (c) 1988-1997 Sam Leffler
                       Copyright (c) 1991-1997 Silicon Graphics, Inc.
                       See libtiff home page http://www.remotesensing.org/libtiff/
                       for details and links to the source code
 
-                      HAVE_TIFF preprocessor flag must be set to make imgcodecs use libtiff.
+                      WITH_TIFF CMake option must be ON to add libtiff & zlib support to imgcodecs.
-                      On UNIX systems configure script takes care of it.
-                      In this build support for ZIP (LZ77 compression) is turned on.
 ------------------------------------------------------------------------------------
-zlib 1.2.7        -   General purpose LZ77 compression library
+zlib                  General purpose LZ77 compression library
                       Copyright (C) 1995-2012 Jean-loup Gailly and Mark Adler.
                       See zlib home page http://www.zlib.net
                       for details and links to the source code
-
-                      No preprocessor definition is needed to make imgcodecs use this library -
-                      it is included automatically if either libpng or libtiff are used.
 ------------------------------------------------------------------------------------
-jasper-1.900.1    -   JasPer is a collection of software
+jasper                JasPer is a collection of software
                       (i.e., a library and application programs) for the coding
                       and manipulation of images.  This software can handle image data in a
                       variety of formats.  One such format supported by JasPer is the JPEG-2000
@@ -50,14 +43,9 @@ jasper-1.900.1    -   JasPer is a collection of software
                       Copyright (c) 1999-2000 The University of British Columbia
                       Copyright (c) 2001-2003 Michael David Adams
 
-                      The JasPer license can be found in src/libjasper.
+                      The JasPer license can be found in libjasper.
-
-                      OpenCV on Windows uses pre-built libjasper library
-                      (lib/libjasper*). To get the latest source code,
-                      please, visit the project homepage:
-                      http://www.ece.uvic.ca/~mdadams/jasper/
 ------------------------------------------------------------------------------------
-openexr-1.7.1     -   OpenEXR is a high dynamic-range (HDR) image file format developed
+openexr               OpenEXR is a high dynamic-range (HDR) image file format developed
                       by Industrial Light & Magic for use in computer imaging applications.
 
                       Copyright (c) 2006, Industrial Light & Magic, a division of Lucasfilm
@@ -66,11 +54,17 @@ openexr-1.7.1     -   OpenEXR is a high dynamic-range (HDR) image file format de
 
                       The project homepage: http://www.openexr.com
 ------------------------------------------------------------------------------------
-ffmpeg-0.8.0      -   FFmpeg is a complete, cross-platform solution to record,
+ffmpeg                FFmpeg is a complete, cross-platform solution to record,
                       convert and stream audio and video. It includes libavcodec -
                       the leading audio/video codec library, and also libavformat, libavutils and
-                      other helper libraries that are used by OpenCV (in highgui module) to
+                      other helper libraries that are used by OpenCV (in videoio module) to
                       read and write video files.
 
-                      The project homepage: http://ffmpeg.org/
+                      Copyright (c) 2001 Fabrice Bellard
+
+                      The project homepage: http://ffmpeg.org/.
+                      
+                      * On Linux/OSX we link user-installed ffmpeg (or ffmpeg fork libav).
+                      * On Windows we use pre-built ffmpeg binaries,
+                        see opencv/3rdparty/ffmpeg/readme.txt for details and licensing information
 ------------------------------------------------------------------------------------

LICENSE

@@ -7,6 +7,14 @@ copy or use the software.
                For Open Source Computer Vision Library
                        (3-clause BSD License)
 
+Copyright (C) 2000-2015, Intel Corporation, all rights reserved.
+Copyright (C) 2009-2011, Willow Garage Inc., all rights reserved.
+Copyright (C) 2009-2015, NVIDIA Corporation, all rights reserved.
+Copyright (C) 2010-2013, Advanced Micro Devices, Inc., all rights reserved.
+Copyright (C) 2015, OpenCV Foundation, all rights reserved.
+Copyright (C) 2015, Itseez 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:
 

apps/traincascade/old_ml_inner_functions.cpp

@@ -82,7 +82,7 @@ void CvStatModel::load( const char* filename, const char* name )
 {
     CvFileStorage* fs = 0;
 
-    CV_FUNCNAME( "CvStatModel::load" );
+    CV_FUNCNAME( "CvAlgorithm::load" );
 
     __BEGIN__;
 

modules/core/include/opencv2/core.hpp

@@ -10,8 +10,10 @@
 //                           License Agreement
 //                For Open Source Computer Vision Library
 //
-// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2000-2015, Intel Corporation, all rights reserved.
 // Copyright (C) 2009-2011, Willow Garage Inc., all rights reserved.
+// Copyright (C) 2015, OpenCV Foundation, all rights reserved.
+// Copyright (C) 2015, Itseez 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,
@@ -2921,6 +2923,10 @@ public:
     Algorithm();
     virtual ~Algorithm();
 
+    /** @brief Clears the algorithm state
+    */
+    CV_WRAP virtual void clear() {}
+
     /** @brief Stores algorithm parameters in a file storage
     */
     virtual void write(FileStorage& fs) const { (void)fs; }
@@ -2928,6 +2934,71 @@ public:
     /** @brief Reads algorithm parameters from a file storage
     */
     virtual void read(const FileNode& fn) { (void)fn; }
+
+    /** @brief Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read
+     */
+    virtual bool empty() const { return false; }
+
+    /** @brief Reads algorithm from the file node
+
+     This is static template method of Algorithm. It's usage is following (in the case of SVM):
+     @code
+     Ptr<SVM> svm = Algorithm::read<SVM>(fn);
+     @endcode
+     In order to make this method work, the derived class must overwrite Algorithm::read(const
+     FileNode& fn) and also have static create() method without parameters
+     (or with all the optional parameters)
+     */
+    template<typename _Tp> static Ptr<_Tp> read(const FileNode& fn)
+    {
+        Ptr<_Tp> obj = _Tp::create();
+        obj->read(fn);
+        return !obj->empty() ? obj : Ptr<_Tp>();
+    }
+
+    /** @brief Loads algorithm from the file
+
+     This is static template method of Algorithm. It's usage is following (in the case of SVM):
+     @code
+     Ptr<SVM> svm = Algorithm::load<SVM>("my_svm_model.xml");
+     @endcode
+     In order to make this method work, the derived class must overwrite Algorithm::read(const
+     FileNode& fn).
+     */
+    template<typename _Tp> static Ptr<_Tp> load(const String& filename, const String& objname=String())
+    {
+        FileStorage fs(filename, FileStorage::READ);
+        FileNode fn = objname.empty() ? fs.getFirstTopLevelNode() : fs[objname];
+        Ptr<_Tp> obj = _Tp::create();
+        obj->read(fn);
+        return !obj->empty() ? obj : Ptr<_Tp>();
+    }
+
+    /** @brief Loads algorithm from a String
+
+     @param strModel The string variable containing the model you want to load.
+
+     This is static template method of Algorithm. It's usage is following (in the case of SVM):
+     @code
+     Ptr<SVM> svm = Algorithm::loadFromString<SVM>(myStringModel);
+     @endcode
+     */
+    template<typename _Tp> static Ptr<_Tp> loadFromString(const String& strModel, const String& objname=String())
+    {
+        FileStorage fs(strModel, FileStorage::READ + FileStorage::MEMORY);
+        FileNode fn = objname.empty() ? fs.getFirstTopLevelNode() : fs[objname];
+        Ptr<_Tp> obj = _Tp::create();
+        obj->read(fn);
+        return !obj->empty() ? obj : Ptr<_Tp>();
+    }
+
+    /** Saves the algorithm to a file.
+     In order to make this method work, the derived class must implement Algorithm::write(FileStorage& fs). */
+    CV_WRAP virtual void save(const String& filename) const;
+
+    /** Returns the algorithm string identifier.
+     This string is used as top level xml/yml node tag when the object is saved to a file or string. */
+    CV_WRAP virtual String getDefaultName() const;
 };
 
 struct Param {

modules/core/include/opencv2/core/ippasync.hpp

@@ -1,3 +1,47 @@
+/*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) 2000-2015, Intel Corporation, all rights reserved.
+// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
+// Copyright (C) 2015, Itseez 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 __OPENCV_CORE_IPPASYNC_HPP__
 #define __OPENCV_CORE_IPPASYNC_HPP__
 

modules/core/include/opencv2/core/mat.hpp

@@ -70,7 +70,7 @@ class CV_EXPORTS _OutputArray;
 
 It is defined as:
 @code
-    typedef const _InputArray& InputArray;
+    class InputArray; // = _InputArray
 @endcode
 where _InputArray is a class that can be constructed from `Mat`, `Mat_<T>`, `Matx<T, m, n>`,
 `std::vector<T>`, `std::vector<std::vector<T> >` or `std::vector<Mat>`. It can also be constructed
@@ -185,39 +185,42 @@ public:
     _InputArray(const UMat& um);
     _InputArray(const std::vector<UMat>& umv);
 
-    virtual Mat getMat(int idx=-1) const;
+    Mat getMat(int idx=-1) const;
-    virtual UMat getUMat(int idx=-1) const;
+    UMat getUMat(int idx=-1) const;
-    virtual void getMatVector(std::vector<Mat>& mv) const;
+    void getMatVector(std::vector<Mat>& mv) const;
-    virtual void getUMatVector(std::vector<UMat>& umv) const;
+    void getUMatVector(std::vector<UMat>& umv) const;
-    virtual cuda::GpuMat getGpuMat() const;
+    cuda::GpuMat getGpuMat() const;
-    virtual ogl::Buffer getOGlBuffer() const;
+    ogl::Buffer getOGlBuffer() const;
-    void* getObj() const;
 
-    virtual int kind() const;
+    int getFlags() const;
-    virtual int dims(int i=-1) const;
+    void* getObj() const;
-    virtual int cols(int i=-1) const;
+    Size getSz() const;
-    virtual int rows(int i=-1) const;
+
-    virtual Size size(int i=-1) const;
+    int kind() const;
-    virtual int sizend(int* sz, int i=-1) const;
+    int dims(int i=-1) const;
-    virtual bool sameSize(const _InputArray& arr) const;
+    int cols(int i=-1) const;
-    virtual size_t total(int i=-1) const;
+    int rows(int i=-1) const;
-    virtual int type(int i=-1) const;
+    Size size(int i=-1) const;
-    virtual int depth(int i=-1) const;
+    int sizend(int* sz, int i=-1) const;
-    virtual int channels(int i=-1) const;
+    bool sameSize(const _InputArray& arr) const;
-    virtual bool isContinuous(int i=-1) const;
+    size_t total(int i=-1) const;
-    virtual bool isSubmatrix(int i=-1) const;
+    int type(int i=-1) const;
-    virtual bool empty() const;
+    int depth(int i=-1) const;
-    virtual void copyTo(const _OutputArray& arr) const;
+    int channels(int i=-1) const;
-    virtual void copyTo(const _OutputArray& arr, const _InputArray & mask) const;
+    bool isContinuous(int i=-1) const;
-    virtual size_t offset(int i=-1) const;
+    bool isSubmatrix(int i=-1) const;
-    virtual size_t step(int i=-1) const;
+    bool empty() const;
+    void copyTo(const _OutputArray& arr) const;
+    void copyTo(const _OutputArray& arr, const _InputArray & mask) const;
+    size_t offset(int i=-1) const;
+    size_t step(int i=-1) const;
     bool isMat() const;
     bool isUMat() const;
     bool isMatVector() const;
     bool isUMatVector() const;
     bool isMatx() const;
 
-    virtual ~_InputArray();
+    ~_InputArray();
 
 protected:
     int flags;
@@ -303,21 +306,21 @@ public:
     _OutputArray(const UMat& m);
     _OutputArray(const std::vector<UMat>& vec);
 
-    virtual bool fixedSize() const;
+    bool fixedSize() const;
-    virtual bool fixedType() const;
+    bool fixedType() const;
-    virtual bool needed() const;
+    bool needed() const;
-    virtual Mat& getMatRef(int i=-1) const;
+    Mat& getMatRef(int i=-1) const;
-    virtual UMat& getUMatRef(int i=-1) const;
+    UMat& getUMatRef(int i=-1) const;
-    virtual cuda::GpuMat& getGpuMatRef() const;
+    cuda::GpuMat& getGpuMatRef() const;
-    virtual ogl::Buffer& getOGlBufferRef() const;
+    ogl::Buffer& getOGlBufferRef() const;
-    virtual cuda::HostMem& getHostMemRef() const;
+    cuda::HostMem& getHostMemRef() const;
-    virtual void create(Size sz, int type, int i=-1, bool allowTransposed=false, int fixedDepthMask=0) const;
+    void create(Size sz, int type, int i=-1, bool allowTransposed=false, int fixedDepthMask=0) const;
-    virtual void create(int rows, int cols, int type, int i=-1, bool allowTransposed=false, int fixedDepthMask=0) const;
+    void create(int rows, int cols, int type, int i=-1, bool allowTransposed=false, int fixedDepthMask=0) const;
-    virtual void create(int dims, const int* size, int type, int i=-1, bool allowTransposed=false, int fixedDepthMask=0) const;
+    void create(int dims, const int* size, int type, int i=-1, bool allowTransposed=false, int fixedDepthMask=0) const;
-    virtual void createSameSize(const _InputArray& arr, int mtype) const;
+    void createSameSize(const _InputArray& arr, int mtype) const;
-    virtual void release() const;
+    void release() const;
-    virtual void clear() const;
+    void clear() const;
-    virtual void setTo(const _InputArray& value, const _InputArray & mask = _InputArray()) const;
+    void setTo(const _InputArray& value, const _InputArray & mask = _InputArray()) const;
 
     void assign(const UMat& u) const;
     void assign(const Mat& m) const;
@@ -358,13 +361,15 @@ public:
     template<typename _Tp, int m, int n> _InputOutputArray(const Matx<_Tp, m, n>& matx);
     _InputOutputArray(const UMat& m);
     _InputOutputArray(const std::vector<UMat>& vec);
+
+    explicit _InputOutputArray(const _OutputArray& o);
 };
 
-typedef const _InputArray& InputArray;
+typedef _InputArray InputArray;
 typedef InputArray InputArrayOfArrays;
-typedef const _OutputArray& OutputArray;
+typedef _OutputArray OutputArray;
 typedef OutputArray OutputArrayOfArrays;
-typedef const _InputOutputArray& InputOutputArray;
+typedef _InputOutputArray InputOutputArray;
 typedef InputOutputArray InputOutputArrayOfArrays;
 
 CV_EXPORTS InputOutputArray noArray();

modules/core/include/opencv2/core/mat.inl.hpp

@@ -7,11 +7,13 @@
 //  copy or use the software.
 //
 //
-//                           License Agreement
+//                          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.
+// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
+// Copyright (C) 2015, Itseez 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,
@@ -61,6 +63,8 @@ inline void _InputArray::init(int _flags, const void* _obj, Size _sz)
 { flags = _flags; obj = (void*)_obj; sz = _sz; }
 
 inline void* _InputArray::getObj() const { return obj; }
+inline int _InputArray::getFlags() const { return flags; }
+inline Size _InputArray::getSz() const { return sz; }
 
 inline _InputArray::_InputArray() { init(NONE, 0); }
 inline _InputArray::_InputArray(int _flags, void* _obj) { init(_flags, _obj); }
@@ -290,6 +294,9 @@ inline _InputOutputArray::_InputOutputArray(const ogl::Buffer& buf)
 inline _InputOutputArray::_InputOutputArray(const cuda::HostMem& cuda_mem)
 { init(FIXED_TYPE + FIXED_SIZE + CUDA_HOST_MEM + ACCESS_RW, &cuda_mem); }
 
+inline _InputOutputArray::_InputOutputArray(const _OutputArray& o)
+{ init(o.getFlags(), o.getObj(), o.getSz()); }
+
 //////////////////////////////////////////// Mat //////////////////////////////////////////
 
 inline

modules/core/include/opencv2/core/operations.hpp

@@ -12,6 +12,8 @@
 //
 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
 // Copyright (C) 2009, Willow Garage Inc., all rights reserved.
+// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
+// Copyright (C) 2015, Itseez 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,

modules/core/include/opencv2/core/version.hpp

@@ -10,8 +10,10 @@
 //                        Intel License Agreement
 //                For Open Source Computer Vision Library
 //
-// Copyright( C) 2000, Intel Corporation, all rights reserved.
+// Copyright( C) 2000-2015, Intel Corporation, all rights reserved.
 // Copyright (C) 2011-2013, NVIDIA Corporation, all rights reserved.
+// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
+// Copyright (C) 2015, Itseez 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,

modules/core/src/algorithm.cpp

@@ -53,6 +53,20 @@ Algorithm::~Algorithm()
 {
 }
 
+void Algorithm::save(const String& filename) const
+{
+    FileStorage fs(filename, FileStorage::WRITE);
+    fs << getDefaultName() << "{";
+    fs << "format" << (int)3;
+    write(fs);
+    fs << "}";
+}
+
+String Algorithm::getDefaultName() const
+{
+    return String("my_object");
+}
+
 }
 
 /* End of file. */

modules/imgproc/src/connectedcomponents.cpp

@@ -65,20 +65,20 @@ namespace cv{
     };
 
     struct CCStatsOp{
-        const _OutputArray* _mstatsv;
+        OutputArray _mstatsv;
         cv::Mat statsv;
-        const _OutputArray* _mcentroidsv;
+        OutputArray _mcentroidsv;
         cv::Mat centroidsv;
         std::vector<Point2ui64> integrals;
 
-        CCStatsOp(OutputArray _statsv, OutputArray _centroidsv): _mstatsv(&_statsv), _mcentroidsv(&_centroidsv){
+        CCStatsOp(OutputArray _statsv, OutputArray _centroidsv): _mstatsv(_statsv), _mcentroidsv(_centroidsv){
         }
         inline
         void init(int nlabels){
-            _mstatsv->create(cv::Size(CC_STAT_MAX, nlabels), cv::DataType<int>::type);
+            _mstatsv.create(cv::Size(CC_STAT_MAX, nlabels), cv::DataType<int>::type);
-            statsv = _mstatsv->getMat();
+            statsv = _mstatsv.getMat();
-            _mcentroidsv->create(cv::Size(2, nlabels), cv::DataType<double>::type);
+            _mcentroidsv.create(cv::Size(2, nlabels), cv::DataType<double>::type);
-            centroidsv = _mcentroidsv->getMat();
+            centroidsv = _mcentroidsv.getMat();
 
             for(int l = 0; l < (int) nlabels; ++l){
                 int *row = (int *) &statsv.at<int>(l, 0);

modules/ml/include/opencv2/ml.hpp

@@ -297,11 +297,12 @@ public:
         COMPRESSED_INPUT=2,
         PREPROCESSED_INPUT=4
     };
-    CV_WRAP virtual void clear();
 
     /** @brief Returns the number of variables in training samples */
     CV_WRAP virtual int getVarCount() const = 0;
 
+    CV_WRAP virtual bool empty() const;
+
     /** @brief Returns true if the model is trained */
     CV_WRAP virtual bool isTrained() const = 0;
     /** @brief Returns true if the model is classifier */
@@ -347,40 +348,6 @@ public:
      */
     CV_WRAP virtual float predict( InputArray samples, OutputArray results=noArray(), int flags=0 ) const = 0;
 
-    /** @brief Loads model from the file
-
-    This is static template method of StatModel. It's usage is following (in the case of SVM):
-    @code
-    Ptr<SVM> svm = StatModel::load<SVM>("my_svm_model.xml");
-    @endcode
-    In order to make this method work, the derived class must overwrite Algorithm::read(const
-    FileNode& fn).
-     */
-    template<typename _Tp> static Ptr<_Tp> load(const String& filename)
-    {
-        FileStorage fs(filename, FileStorage::READ);
-        Ptr<_Tp> model = _Tp::create();
-        model->read(fs.getFirstTopLevelNode());
-        return model->isTrained() ? model : Ptr<_Tp>();
-    }
-
-    /** @brief Loads model from a String
-
-    @param strModel The string variable containing the model you want to load.
-
-    This is static template method of StatModel. It's usage is following (in the case of SVM):
-    @code
-    Ptr<SVM> svm = StatModel::loadFromString<SVM>(myStringModel);
-    @endcode
-     */
-    template<typename _Tp> static Ptr<_Tp> loadFromString(const String& strModel)
-    {
-        FileStorage fs(strModel, FileStorage::READ + FileStorage::MEMORY);
-        Ptr<_Tp> model = _Tp::create();
-        model->read(fs.getFirstTopLevelNode());
-        return model->isTrained() ? model : Ptr<_Tp>();
-    }
-
     /** @brief Create and train model with default parameters
 
     The class must implement static `create()` method with no parameters or with all default parameter values
@@ -390,14 +357,6 @@ public:
         Ptr<_Tp> model = _Tp::create();
         return !model.empty() && model->train(data, flags) ? model : Ptr<_Tp>();
     }
-
-    /** Saves the model to a file.
-    In order to make this method work, the derived class must implement Algorithm::write(FileStorage& fs). */
-    CV_WRAP virtual void save(const String& filename) const;
-
-    /** Returns model string identifier.
-    This string is used as top level xml/yml node tag when model is saved to a file or string. */
-    CV_WRAP virtual String getDefaultModelName() const = 0;
 };
 
 /****************************************************************************************\
@@ -939,7 +898,7 @@ public:
 
     /** Creates empty %EM model.
     The model should be trained then using StatModel::train(traindata, flags) method. Alternatively, you
-    can use one of the EM::train\* methods or load it from file using StatModel::load\<EM\>(filename).
+    can use one of the EM::train\* methods or load it from file using Algorithm::load\<EM\>(filename).
      */
     CV_WRAP static Ptr<EM> create();
 };
@@ -1127,7 +1086,7 @@ public:
 
     The static method creates empty decision tree with the specified parameters. It should be then
     trained using train method (see StatModel::train). Alternatively, you can load the model from
-    file using StatModel::load\<DTrees\>(filename).
+    file using Algorithm::load\<DTrees\>(filename).
      */
     CV_WRAP static Ptr<DTrees> create();
 };
@@ -1181,7 +1140,7 @@ public:
 
     /** Creates the empty model.
     Use StatModel::train to train the model, StatModel::train to create and train the model,
-    StatModel::load to load the pre-trained model.
+    Algorithm::load to load the pre-trained model.
      */
     CV_WRAP static Ptr<RTrees> create();
 };
@@ -1231,7 +1190,7 @@ public:
     };
 
     /** Creates the empty model.
-    Use StatModel::train to train the model, StatModel::load\<Boost\>(filename) to load the pre-trained model. */
+    Use StatModel::train to train the model, Algorithm::load\<Boost\>(filename) to load the pre-trained model. */
     CV_WRAP static Ptr<Boost> create();
 };
 
@@ -1416,7 +1375,7 @@ public:
 
     /** @brief Creates empty model
 
-    Use StatModel::train to train the model, StatModel::load\<ANN_MLP\>(filename) to load the pre-trained model.
+    Use StatModel::train to train the model, Algorithm::load\<ANN_MLP\>(filename) to load the pre-trained model.
     Note that the train method has optional flags: ANN_MLP::TrainFlags.
      */
     static Ptr<ANN_MLP> create();

modules/ml/src/ann_mlp.cpp

@@ -1294,7 +1294,7 @@ public:
         return layer_sizes.empty() ? 0 : layer_sizes[0];
     }
 
-    String getDefaultModelName() const
+    String getDefaultName() const
     {
         return "opencv_ml_ann_mlp";
     }

modules/ml/src/boost.cpp

@@ -465,7 +465,7 @@ public:
     CV_WRAP_SAME_PROPERTY(float, RegressionAccuracy, impl.params)
     CV_WRAP_SAME_PROPERTY_S(cv::Mat, Priors, impl.params)
 
-    String getDefaultModelName() const { return "opencv_ml_boost"; }
+    String getDefaultName() const { return "opencv_ml_boost"; }
 
     bool train( const Ptr<TrainData>& trainData, int flags )
     {

modules/ml/src/em.cpp

@@ -227,7 +227,7 @@ public:
         return means.cols;
     }
 
-    String getDefaultModelName() const
+    String getDefaultName() const
     {
         return "opencv_ml_em";
     }

modules/ml/src/inner_functions.cpp

@@ -50,7 +50,7 @@ ParamGrid::ParamGrid(double _minVal, double _maxVal, double _logStep)
     logStep = std::max(_logStep, 1.);
 }
 
-void StatModel::clear() {}
+bool StatModel::empty() const { return !isTrained(); }
 
 int StatModel::getVarCount() const { return 0; }
 
@@ -111,15 +111,6 @@ float StatModel::calcError( const Ptr<TrainData>& data, bool testerr, OutputArra
     return (float)(err / n * (isclassifier ? 100 : 1));
 }
 
-void StatModel::save(const String& filename) const
-{
-    FileStorage fs(filename, FileStorage::WRITE);
-    fs << getDefaultModelName() << "{";
-    fs << "format" << (int)3;
-    write(fs);
-    fs << "}";
-}
-
 /* Calculates upper triangular matrix S, where A is a symmetrical matrix A=S'*S */
 static void Cholesky( const Mat& A, Mat& S )
 {

modules/ml/src/knearest.cpp

@@ -496,7 +496,7 @@ public:
         return impl->train(data, flags);
     }
 
-    String getDefaultModelName() const { return impl->getModelName(); }
+    String getDefaultName() const { return impl->getModelName(); }
 
 protected:
     void initImpl(int algorithmType)

modules/ml/src/lr.cpp

@@ -104,7 +104,7 @@ public:
     virtual int getVarCount() const { return learnt_thetas.cols; }
     virtual bool isTrained() const { return !learnt_thetas.empty(); }
     virtual bool isClassifier() const { return true; }
-    virtual String getDefaultModelName() const { return "opencv_ml_lr"; }
+    virtual String getDefaultName() const { return "opencv_ml_lr"; }
 protected:
     Mat calc_sigmoid(const Mat& data) const;
     double compute_cost(const Mat& _data, const Mat& _labels, const Mat& _init_theta);

modules/ml/src/nbayes.cpp

@@ -443,7 +443,7 @@ public:
     bool isTrained() const { return !avg.empty(); }
     bool isClassifier() const { return true; }
     int getVarCount() const { return nallvars; }
-    String getDefaultModelName() const { return "opencv_ml_nbayes"; }
+    String getDefaultName() const { return "opencv_ml_nbayes"; }
 
     int nallvars;
     Mat var_idx, cls_labels, c;

modules/ml/src/precomp.hpp

@@ -290,7 +290,7 @@ namespace ml
         virtual ~DTreesImpl();
         virtual void clear();
 
-        String getDefaultModelName() const { return "opencv_ml_dtree"; }
+        String getDefaultName() const { return "opencv_ml_dtree"; }
         bool isTrained() const { return !roots.empty(); }
         bool isClassifier() const { return _isClassifier; }
         int getVarCount() const { return varType.empty() ? 0 : (int)(varType.size() - 1); }

modules/ml/src/rtrees.cpp

@@ -375,7 +375,7 @@ public:
     RTreesImpl() {}
     virtual ~RTreesImpl() {}
 
-    String getDefaultModelName() const { return "opencv_ml_rtrees"; }
+    String getDefaultName() const { return "opencv_ml_rtrees"; }
 
     bool train( const Ptr<TrainData>& trainData, int flags )
     {

modules/ml/src/svm.cpp

@@ -2008,7 +2008,7 @@ public:
         return var_count;
     }
 
-    String getDefaultModelName() const
+    String getDefaultName() const
     {
         return "opencv_ml_svm";
     }

modules/ml/test/test_emknearestkmeans.cpp

@@ -576,7 +576,7 @@ protected:
         // Read in
         try
         {
-            em = StatModel::load<EM>(filename);
+            em = Algorithm::load<EM>(filename);
         }
         catch(...)
         {

modules/ml/test/test_lr.cpp

@@ -179,7 +179,7 @@ void CV_LRTest_SaveLoad::run( int /*start_from*/ )
     // and load to another
     try
     {
-        Ptr<LogisticRegression> lr2 = StatModel::load<LogisticRegression>(filename);
+        Ptr<LogisticRegression> lr2 = Algorithm::load<LogisticRegression>(filename);
         lr2->predict(tdata->getSamples(), responses2);
         learnt_mat2 = lr2->get_learnt_thetas();
     }

modules/ml/test/test_mltests2.cpp

@@ -472,19 +472,19 @@ void CV_MLBaseTest::save( const char* filename )
 void CV_MLBaseTest::load( const char* filename )
 {
     if( modelName == CV_NBAYES )
-        model = StatModel::load<NormalBayesClassifier>( filename );
+        model = Algorithm::load<NormalBayesClassifier>( filename );
     else if( modelName == CV_KNEAREST )
-        model = StatModel::load<KNearest>( filename );
+        model = Algorithm::load<KNearest>( filename );
     else if( modelName == CV_SVM )
-        model = StatModel::load<SVM>( filename );
+        model = Algorithm::load<SVM>( filename );
     else if( modelName == CV_ANN )
-        model = StatModel::load<ANN_MLP>( filename );
+        model = Algorithm::load<ANN_MLP>( filename );
     else if( modelName == CV_DTREE )
-        model = StatModel::load<DTrees>( filename );
+        model = Algorithm::load<DTrees>( filename );
     else if( modelName == CV_BOOST )
-        model = StatModel::load<Boost>( filename );
+        model = Algorithm::load<Boost>( filename );
     else if( modelName == CV_RTREES )
-        model = StatModel::load<RTrees>( filename );
+        model = Algorithm::load<RTrees>( filename );
     else
         CV_Error( CV_StsNotImplemented, "invalid stat model name");
 }

modules/ml/test/test_save_load.cpp

@@ -190,17 +190,17 @@ protected:
         bool isTree = modelName == CV_BOOST || modelName == CV_DTREE || modelName == CV_RTREES;
         Ptr<StatModel> model;
         if (modelName == CV_BOOST)
-            model = StatModel::load<Boost>(filename);
+            model = Algorithm::load<Boost>(filename);
         else if (modelName == CV_ANN)
-            model = StatModel::load<ANN_MLP>(filename);
+            model = Algorithm::load<ANN_MLP>(filename);
         else if (modelName == CV_DTREE)
-            model = StatModel::load<DTrees>(filename);
+            model = Algorithm::load<DTrees>(filename);
         else if (modelName == CV_NBAYES)
-            model = StatModel::load<NormalBayesClassifier>(filename);
+            model = Algorithm::load<NormalBayesClassifier>(filename);
         else if (modelName == CV_SVM)
-            model = StatModel::load<SVM>(filename);
+            model = Algorithm::load<SVM>(filename);
         else if (modelName == CV_RTREES)
-            model = StatModel::load<RTrees>(filename);
+            model = Algorithm::load<RTrees>(filename);
         if (!model)
         {
             code = cvtest::TS::FAIL_INVALID_TEST_DATA;
@@ -273,11 +273,11 @@ TEST(DISABLED_ML_SVM, linear_save_load)
 {
     Ptr<cv::ml::SVM> svm1, svm2, svm3;
 
-    svm1 = StatModel::load<SVM>("SVM45_X_38-1.xml");
+    svm1 = Algorithm::load<SVM>("SVM45_X_38-1.xml");
-    svm2 = StatModel::load<SVM>("SVM45_X_38-2.xml");
+    svm2 = Algorithm::load<SVM>("SVM45_X_38-2.xml");
     string tname = tempfile("a.xml");
     svm2->save(tname);
-    svm3 = StatModel::load<SVM>(tname);
+    svm3 = Algorithm::load<SVM>(tname);
 
     ASSERT_EQ(svm1->getVarCount(), svm2->getVarCount());
     ASSERT_EQ(svm1->getVarCount(), svm3->getVarCount());

modules/stitching/include/opencv2/stitching/detail/seam_finders.hpp

@@ -106,6 +106,8 @@ protected:
 class CV_EXPORTS VoronoiSeamFinder : public PairwiseSeamFinder
 {
 public:
+    virtual void find(const std::vector<UMat> &src, const std::vector<Point> &corners,
+                      std::vector<UMat> &masks);
     virtual void find(const std::vector<Size> &size, const std::vector<Point> &corners,
                       std::vector<UMat> &masks);
 private:

modules/stitching/include/opencv2/stitching/detail/warpers.hpp

@@ -186,14 +186,18 @@ public:
      */
     PlaneWarper(float scale = 1.f) { projector_.scale = scale; }
 
+    Point2f warpPoint(const Point2f &pt, InputArray K, InputArray R);
     Point2f warpPoint(const Point2f &pt, InputArray K, InputArray R, InputArray T);
 
     virtual Rect buildMaps(Size src_size, InputArray K, InputArray R, InputArray T, OutputArray xmap, OutputArray ymap);
     Rect buildMaps(Size src_size, InputArray K, InputArray R, OutputArray xmap, OutputArray ymap);
 
+    Point warp(InputArray src, InputArray K, InputArray R,
+               int interp_mode, int border_mode, OutputArray dst);
     virtual Point warp(InputArray src, InputArray K, InputArray R, InputArray T, int interp_mode, int border_mode,
                OutputArray dst);
 
+    Rect warpRoi(Size src_size, InputArray K, InputArray R);
     Rect warpRoi(Size src_size, InputArray K, InputArray R, InputArray T);
 
 protected:

modules/stitching/src/seam_finders.cpp

@@ -82,6 +82,11 @@ void PairwiseSeamFinder::run()
     }
 }
 
+void VoronoiSeamFinder::find(const std::vector<UMat> &src, const std::vector<Point> &corners,
+                             std::vector<UMat> &masks)
+{
+    PairwiseSeamFinder::find(src, corners, masks);
+}
 
 void VoronoiSeamFinder::find(const std::vector<Size> &sizes, const std::vector<Point> &corners,
                              std::vector<UMat> &masks)

modules/stitching/src/warpers.cpp

@@ -87,6 +87,13 @@ Point2f PlaneWarper::warpPoint(const Point2f &pt, InputArray K, InputArray R, In
     return uv;
 }
 
+Point2f PlaneWarper::warpPoint(const Point2f &pt, InputArray K, InputArray R)
+{
+    float tz[] = {0.f, 0.f, 0.f};
+    Mat_<float> T(3, 1, tz);
+    return warpPoint(pt, K, R, T);
+}
+
 Rect PlaneWarper::buildMaps(Size src_size, InputArray K, InputArray R, OutputArray xmap, OutputArray ymap)
 {
     return buildMaps(src_size, K, R, Mat::zeros(3, 1, CV_32FC1), xmap, ymap);
@@ -155,6 +162,13 @@ Point PlaneWarper::warp(InputArray src, InputArray K, InputArray R, InputArray T
     return dst_roi.tl();
 }
 
+Point PlaneWarper::warp(InputArray src, InputArray K, InputArray R,
+                        int interp_mode, int border_mode, OutputArray dst)
+{
+    float tz[] = {0.f, 0.f, 0.f};
+    Mat_<float> T(3, 1, tz);
+    return warp(src, K, R, T, interp_mode, border_mode, dst);
+}
 
 Rect PlaneWarper::warpRoi(Size src_size, InputArray K, InputArray R, InputArray T)
 {
@@ -166,6 +180,13 @@ Rect PlaneWarper::warpRoi(Size src_size, InputArray K, InputArray R, InputArray
     return Rect(dst_tl, Point(dst_br.x + 1, dst_br.y + 1));
 }
 
+Rect PlaneWarper::warpRoi(Size src_size, InputArray K, InputArray R)
+{
+    float tz[] = {0.f, 0.f, 0.f};
+    Mat_<float> T(3, 1, tz);
+    return warpRoi(src_size, K, R, T);
+}
+
 
 void PlaneWarper::detectResultRoi(Size src_size, Point &dst_tl, Point &dst_br)
 {

modules/superres/src/optical_flow.cpp

@@ -224,7 +224,7 @@ namespace
 
     void Farneback::impl(InputArray input0, InputArray input1, OutputArray dst)
     {
-        calcOpticalFlowFarneback(input0, input1, (InputOutputArray)dst, pyrScale_,
+        calcOpticalFlowFarneback(input0, input1, InputOutputArray(dst), pyrScale_,
                                  numLevels_, winSize_, numIters_,
                                  polyN_, polySigma_, flags_);
     }