|
|
|
|
@ -8,6 +8,7 @@ |
|
|
|
|
#include <ppltasks.h> |
|
|
|
|
#include <wrl\client.h> |
|
|
|
|
#include <Robuffer.h> |
|
|
|
|
#include <vector> |
|
|
|
|
using namespace OcvImageProcessing; |
|
|
|
|
|
|
|
|
|
using namespace Microsoft::WRL; |
|
|
|
|
@ -26,35 +27,18 @@ using namespace Windows::UI::Xaml::Input; |
|
|
|
|
using namespace Windows::UI::Xaml::Media; |
|
|
|
|
using namespace Windows::UI::Xaml::Navigation; |
|
|
|
|
|
|
|
|
|
#include <opencv2\core\core.hpp> |
|
|
|
|
#include <opencv2\imgproc\imgproc.hpp> |
|
|
|
|
|
|
|
|
|
Uri^ InputImageUri = ref new Uri(L"ms-appx:///Assets/Lena.png"); |
|
|
|
|
|
|
|
|
|
// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238
|
|
|
|
|
|
|
|
|
|
MainPage::MainPage() |
|
|
|
|
{ |
|
|
|
|
InitializeComponent(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
/// Invoked when this page is about to be displayed in a Frame.
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="e">Event data that describes how this page was reached. The Parameter
|
|
|
|
|
/// property is typically used to configure the page.</param>
|
|
|
|
|
void MainPage::OnNavigatedTo(NavigationEventArgs^ e) |
|
|
|
|
{ |
|
|
|
|
(void) e; // Unused parameter
|
|
|
|
|
} |
|
|
|
|
InitializeComponent(); |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void OcvImageProcessing::MainPage::Button_Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) |
|
|
|
|
{ |
|
|
|
|
RandomAccessStreamReference^ streamRef = RandomAccessStreamReference::CreateFromUri(InputImageUri); |
|
|
|
|
RandomAccessStreamReference^ streamRef = RandomAccessStreamReference::CreateFromUri(InputImageUri); |
|
|
|
|
|
|
|
|
|
task<IRandomAccessStreamWithContentType^> (streamRef->OpenReadAsync()). |
|
|
|
|
then([](task<IRandomAccessStreamWithContentType^> thisTask) |
|
|
|
|
then([](task<IRandomAccessStreamWithContentType^> thisTask) |
|
|
|
|
{ |
|
|
|
|
IRandomAccessStreamWithContentType^ fileStream = thisTask.get(); |
|
|
|
|
return BitmapDecoder::CreateAsync(fileStream); |
|
|
|
|
@ -66,7 +50,7 @@ void OcvImageProcessing::MainPage::Button_Click(Platform::Object^ sender, Window |
|
|
|
|
}). |
|
|
|
|
then([this](task<BitmapFrame^> thisTask) |
|
|
|
|
{ |
|
|
|
|
BitmapFrame^ frame = thisTask.get();
|
|
|
|
|
BitmapFrame^ frame = thisTask.get(); |
|
|
|
|
|
|
|
|
|
// Save some information as fields
|
|
|
|
|
frameWidth = frame->PixelWidth; |
|
|
|
|
@ -77,32 +61,128 @@ void OcvImageProcessing::MainPage::Button_Click(Platform::Object^ sender, Window |
|
|
|
|
then([this](task<PixelDataProvider^> thisTask) |
|
|
|
|
{ |
|
|
|
|
PixelDataProvider^ pixelProvider = thisTask.get(); |
|
|
|
|
Platform::Array<byte>^ srcPixels = pixelProvider->DetachPixelData(); |
|
|
|
|
|
|
|
|
|
cv::Mat inputImage(frameHeight, frameWidth, CV_8UC4, srcPixels->Data); |
|
|
|
|
unsigned char* dstPixels; |
|
|
|
|
|
|
|
|
|
// Create the WriteableBitmap
|
|
|
|
|
WriteableBitmap^ bitmap = ref new WriteableBitmap(frameWidth, frameHeight); |
|
|
|
|
|
|
|
|
|
// Get access to the pixels
|
|
|
|
|
IBuffer^ buffer = bitmap->PixelBuffer; |
|
|
|
|
|
|
|
|
|
// Obtain IBufferByteAccess
|
|
|
|
|
ComPtr<IBufferByteAccess> pBufferByteAccess; |
|
|
|
|
ComPtr<IUnknown> pBuffer((IUnknown*)buffer); |
|
|
|
|
pBuffer.As(&pBufferByteAccess); |
|
|
|
|
|
|
|
|
|
// Get pointer to pixel bytes
|
|
|
|
|
pBufferByteAccess->Buffer(&dstPixels); |
|
|
|
|
cv::Mat outputImage(frameHeight, frameWidth, CV_8UC4, dstPixels); |
|
|
|
|
|
|
|
|
|
cv::Mat intermediateMat; |
|
|
|
|
cv::Canny(inputImage, intermediateMat, 80, 90); |
|
|
|
|
cv::cvtColor(intermediateMat, outputImage, CV_GRAY2BGRA); |
|
|
|
|
//cv::blur(inputImage, outputImage, cv::Size(3,3));
|
|
|
|
|
|
|
|
|
|
// Set the bitmap to the Image element
|
|
|
|
|
PreviewWidget->Source = bitmap;
|
|
|
|
|
Platform::Array<byte>^ srcPixels = pixelProvider->DetachPixelData(); |
|
|
|
|
Lena = cv::Mat(frameHeight, frameWidth, CV_8UC4); |
|
|
|
|
memcpy(Lena.data, srcPixels->Data, 4*frameWidth*frameHeight); |
|
|
|
|
UpdateImage(Lena); |
|
|
|
|
}); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/// <summary>
|
|
|
|
|
/// Invoked when this page is about to be displayed in a Frame.
|
|
|
|
|
/// </summary>
|
|
|
|
|
/// <param name="e">Event data that describes how this page was reached. The Parameter
|
|
|
|
|
/// property is typically used to configure the page.</param>
|
|
|
|
|
void MainPage::OnNavigatedTo(NavigationEventArgs^ e) |
|
|
|
|
{ |
|
|
|
|
(void) e; // Unused parameter
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
void OcvImageProcessing::MainPage::UpdateImage(const cv::Mat& image) |
|
|
|
|
{ |
|
|
|
|
// Create the WriteableBitmap
|
|
|
|
|
WriteableBitmap^ bitmap = ref new WriteableBitmap(image.cols, image.rows); |
|
|
|
|
|
|
|
|
|
// Get access to the pixels
|
|
|
|
|
IBuffer^ buffer = bitmap->PixelBuffer; |
|
|
|
|
unsigned char* dstPixels; |
|
|
|
|
|
|
|
|
|
// Obtain IBufferByteAccess
|
|
|
|
|
ComPtr<IBufferByteAccess> pBufferByteAccess; |
|
|
|
|
ComPtr<IUnknown> pBuffer((IUnknown*)buffer); |
|
|
|
|
pBuffer.As(&pBufferByteAccess); |
|
|
|
|
|
|
|
|
|
// Get pointer to pixel bytes
|
|
|
|
|
pBufferByteAccess->Buffer(&dstPixels); |
|
|
|
|
memcpy(dstPixels, image.data, 4*image.cols*image.rows); |
|
|
|
|
|
|
|
|
|
// Set the bitmap to the Image element
|
|
|
|
|
PreviewWidget->Source = bitmap;} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
cv::Mat OcvImageProcessing::MainPage::ApplyGrayFilter(const cv::Mat& image) |
|
|
|
|
{ |
|
|
|
|
cv::Mat result; |
|
|
|
|
cv::Mat intermediateMat; |
|
|
|
|
cv::cvtColor(image, intermediateMat, CV_RGBA2GRAY); |
|
|
|
|
cv::cvtColor(intermediateMat, result, CV_GRAY2BGRA); |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
cv::Mat OcvImageProcessing::MainPage::ApplyCannyFilter(const cv::Mat& image) |
|
|
|
|
{ |
|
|
|
|
cv::Mat result; |
|
|
|
|
cv::Mat intermediateMat; |
|
|
|
|
cv::Canny(image, intermediateMat, 80, 90); |
|
|
|
|
cv::cvtColor(intermediateMat, result, CV_GRAY2BGRA); |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
cv::Mat OcvImageProcessing::MainPage::ApplyBlurFilter(const cv::Mat& image) |
|
|
|
|
{ |
|
|
|
|
cv::Mat result; |
|
|
|
|
cv::blur(image, result, cv::Size(3,3)); |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
cv::Mat OcvImageProcessing::MainPage::ApplyFindFeaturesFilter(const cv::Mat& image) |
|
|
|
|
{ |
|
|
|
|
cv::Mat result; |
|
|
|
|
cv::Mat intermediateMat; |
|
|
|
|
cv::FastFeatureDetector detector(50); |
|
|
|
|
std::vector<cv::KeyPoint> features; |
|
|
|
|
|
|
|
|
|
image.copyTo(result); |
|
|
|
|
cv::cvtColor(image, intermediateMat, CV_RGBA2GRAY); |
|
|
|
|
detector.detect(intermediateMat, features); |
|
|
|
|
|
|
|
|
|
for( unsigned int i = 0; i < std::min(features.size(), (size_t)50); i++ ) |
|
|
|
|
{ |
|
|
|
|
const cv::KeyPoint& kp = features[i]; |
|
|
|
|
cv::circle(result, cv::Point((int)kp.pt.x, (int)kp.pt.y), 10, cv::Scalar(255,0,0,255)); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
cv::Mat OcvImageProcessing::MainPage::ApplySepiaFilter(const cv::Mat& image) |
|
|
|
|
{ |
|
|
|
|
const float SepiaKernelData[16] = |
|
|
|
|
{ |
|
|
|
|
/* B */0.131f, 0.534f, 0.272f, 0.f, |
|
|
|
|
/* G */0.168f, 0.686f, 0.349f, 0.f, |
|
|
|
|
/* R */0.189f, 0.769f, 0.393f, 0.f, |
|
|
|
|
/* A */0.000f, 0.000f, 0.000f, 1.f |
|
|
|
|
}; |
|
|
|
|
const cv::Mat SepiaKernel(4, 4, CV_32FC1, (void*)SepiaKernelData); |
|
|
|
|
cv::Mat result; |
|
|
|
|
cv::transform(image, result, SepiaKernel); |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
void OcvImageProcessing::MainPage::Button_Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) |
|
|
|
|
{ |
|
|
|
|
switch(FilterTypeWidget->SelectedIndex) |
|
|
|
|
{ |
|
|
|
|
case PREVIEW: |
|
|
|
|
UpdateImage(Lena); |
|
|
|
|
break; |
|
|
|
|
case GRAY: |
|
|
|
|
UpdateImage(ApplyGrayFilter(Lena)); |
|
|
|
|
break; |
|
|
|
|
case CANNY: |
|
|
|
|
UpdateImage(ApplyCannyFilter(Lena)); |
|
|
|
|
break; |
|
|
|
|
case BLUR: |
|
|
|
|
UpdateImage(ApplyBlurFilter(Lena)); |
|
|
|
|
break; |
|
|
|
|
case FEATURES: |
|
|
|
|
UpdateImage(ApplyFindFeaturesFilter(Lena)); |
|
|
|
|
break; |
|
|
|
|
case SEPIA: |
|
|
|
|
UpdateImage(ApplySepiaFilter(Lena)); |
|
|
|
|
break; |
|
|
|
|
default: |
|
|
|
|
UpdateImage(Lena); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
Alexander Smorkalov
12 years ago
