Merge pull request #1884 from asmorkalov:winrt_img_proc_sample

samples/winrt/OcvImageProcessing/OcvImageProcessing.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "OcvImageProcessing", "OcvImageProcessing\OcvImageProcessing.vcxproj", "{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|ARM = Debug|ARM
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|ARM = Release|ARM
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|ARM.ActiveCfg = Debug|ARM
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|ARM.Build.0 = Debug|ARM
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|ARM.Deploy.0 = Debug|ARM
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|Win32.ActiveCfg = Debug|Win32
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|Win32.Build.0 = Debug|Win32
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|Win32.Deploy.0 = Debug|Win32
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|x64.ActiveCfg = Debug|x64
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|x64.Build.0 = Debug|x64
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Debug|x64.Deploy.0 = Debug|x64
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|ARM.ActiveCfg = Release|ARM
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|ARM.Build.0 = Release|ARM
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|ARM.Deploy.0 = Release|ARM
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|Win32.ActiveCfg = Release|Win32
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|Win32.Build.0 = Release|Win32
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|Win32.Deploy.0 = Release|Win32
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|x64.ActiveCfg = Release|x64
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|x64.Build.0 = Release|x64
+		{A5555EA2-F9E8-4078-90F5-D428F2C0D6D1}.Release|x64.Deploy.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

samples/winrt/OcvImageProcessing/OcvImageProcessing/App.xaml

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+<Application
+    x:Class="OcvImageProcessing.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:OcvImageProcessing">
+
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+
+                <!--
+                    Styles that define common aspects of the platform look and feel
+                    Required by Visual Studio project and item templates
+                 -->
+                <ResourceDictionary Source="Common/StandardStyles.xaml"/>
+            </ResourceDictionary.MergedDictionaries>
+
+        </ResourceDictionary>
+    </Application.Resources>
+</Application>

samples/winrt/OcvImageProcessing/OcvImageProcessing/App.xaml.cpp

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+//
+// App.xaml.cpp
+// Implementation of the App class.
+//
+
+#include "pch.h"
+#include "MainPage.xaml.h"
+
+using namespace OcvImageProcessing;
+
+using namespace Platform;
+using namespace Windows::ApplicationModel;
+using namespace Windows::ApplicationModel::Activation;
+using namespace Windows::Foundation;
+using namespace Windows::Foundation::Collections;
+using namespace Windows::UI::Xaml;
+using namespace Windows::UI::Xaml::Controls;
+using namespace Windows::UI::Xaml::Controls::Primitives;
+using namespace Windows::UI::Xaml::Data;
+using namespace Windows::UI::Xaml::Input;
+using namespace Windows::UI::Xaml::Interop;
+using namespace Windows::UI::Xaml::Media;
+using namespace Windows::UI::Xaml::Navigation;
+
+// The Blank Application template is documented at http://go.microsoft.com/fwlink/?LinkId=234227
+
+/// <summary>
+/// Initializes the singleton application object.  This is the first line of authored code
+/// executed, and as such is the logical equivalent of main() or WinMain().
+/// </summary>
+App::App()
+{
+    InitializeComponent();
+    Suspending += ref new SuspendingEventHandler(this, &App::OnSuspending);
+}
+
+/// <summary>
+/// Invoked when the application is launched normally by the end user.  Other entry points
+/// will be used when the application is launched to open a specific file, to display
+/// search results, and so forth.
+/// </summary>
+/// <param name="args">Details about the launch request and process.</param>
+void App::OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEventArgs^ args)
+{
+    auto rootFrame = dynamic_cast<Frame^>(Window::Current->Content);
+
+    // Do not repeat app initialization when the Window already has content,
+    // just ensure that the window is active
+    if (rootFrame == nullptr)
+    {
+        // Create a Frame to act as the navigation context and associate it with
+        // a SuspensionManager key
+        rootFrame = ref new Frame();
+
+        if (args->PreviousExecutionState == ApplicationExecutionState::Terminated)
+        {
+            // TODO: Restore the saved session state only when appropriate, scheduling the
+            // final launch steps after the restore is complete
+
+        }
+
+        if (rootFrame->Content == nullptr)
+        {
+            // When the navigation stack isn't restored navigate to the first page,
+            // configuring the new page by passing required information as a navigation
+            // parameter
+            if (!rootFrame->Navigate(TypeName(MainPage::typeid), args->Arguments))
+            {
+                throw ref new FailureException("Failed to create initial page");
+            }
+        }
+        // Place the frame in the current Window
+        Window::Current->Content = rootFrame;
+        // Ensure the current window is active
+        Window::Current->Activate();
+    }
+    else
+    {
+        if (rootFrame->Content == nullptr)
+        {
+            // When the navigation stack isn't restored navigate to the first page,
+            // configuring the new page by passing required information as a navigation
+            // parameter
+            if (!rootFrame->Navigate(TypeName(MainPage::typeid), args->Arguments))
+            {
+                throw ref new FailureException("Failed to create initial page");
+            }
+        }
+        // Ensure the current window is active
+        Window::Current->Activate();
+    }
+}
+
+/// <summary>
+/// Invoked when application execution is being suspended.  Application state is saved
+/// without knowing whether the application will be terminated or resumed with the contents
+/// of memory still intact.
+/// </summary>
+/// <param name="sender">The source of the suspend request.</param>
+/// <param name="e">Details about the suspend request.</param>
+void App::OnSuspending(Object^ sender, SuspendingEventArgs^ e)
+{
+    (void) sender; // Unused parameter
+    (void) e;      // Unused parameter
+
+    //TODO: Save application state and stop any background activity
+}

samples/winrt/OcvImageProcessing/OcvImageProcessing/App.xaml.h

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+//
+// App.xaml.h
+// Declaration of the App class.
+//
+
+#pragma once
+
+#include "App.g.h"
+
+namespace OcvImageProcessing
+{
+    /// <summary>
+    /// Provides application-specific behavior to supplement the default Application class.
+    /// </summary>
+    ref class App sealed
+    {
+    public:
+        App();
+        virtual void OnLaunched(Windows::ApplicationModel::Activation::LaunchActivatedEventArgs^ args) override;
+
+    private:
+        void OnSuspending(Platform::Object^ sender, Windows::ApplicationModel::SuspendingEventArgs^ e);
+    };
+}

samples/winrt/OcvImageProcessing/OcvImageProcessing/MainPage.xaml

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+<Page
+    x:Class="OcvImageProcessing.MainPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:OcvImageProcessing"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d">
+
+    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
+        <Image x:Name="PreviewWidget" HorizontalAlignment="Left" Height="512" Margin="10,10,0,0" VerticalAlignment="Top" Width="512"/>
+        <Button Content="Apply" HorizontalAlignment="Left" Margin="527,71,0,0" VerticalAlignment="Top" Width="293" Height="63" Click="Button_Click"/>
+        <ComboBox x:Name="FilterTypeWidget" HorizontalAlignment="Left" Margin="527,10,0,0" VerticalAlignment="Top" Width="293" Height="56" SelectedIndex="0">
+            <ComboBoxItem Content="Preview"/>
+            <ComboBoxItem Content="GrayScale"/>
+            <ComboBoxItem Content="Canny"/>
+            <ComboBoxItem Content="Blur"/>
+            <ComboBoxItem Content="Features"/>
+            <ComboBoxItem Content="Sepia"/>
+        </ComboBox>
+
+    </Grid>
+</Page>

samples/winrt/OcvImageProcessing/OcvImageProcessing/MainPage.xaml.cpp

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+//
+// MainPage.xaml.cpp
+// Implementation of the MainPage class.
+//
+
+#include "pch.h"
+#include "MainPage.xaml.h"
+#include <ppltasks.h>
+#include <wrl\client.h>
+#include <Robuffer.h>
+#include <vector>
+using namespace OcvImageProcessing;
+
+using namespace Microsoft::WRL;
+using namespace concurrency;
+using namespace Platform;
+using namespace Windows::Foundation;
+using namespace Windows::Storage::Streams;
+using namespace Windows::UI::Xaml::Media::Imaging;
+using namespace Windows::Graphics::Imaging;
+using namespace Windows::Foundation::Collections;
+using namespace Windows::UI::Xaml;
+using namespace Windows::UI::Xaml::Controls;
+using namespace Windows::UI::Xaml::Controls::Primitives;
+using namespace Windows::UI::Xaml::Data;
+using namespace Windows::UI::Xaml::Input;
+using namespace Windows::UI::Xaml::Media;
+using namespace Windows::UI::Xaml::Navigation;
+
+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();
+
+    RandomAccessStreamReference^ streamRef = RandomAccessStreamReference::CreateFromUri(InputImageUri);
+
+    task<IRandomAccessStreamWithContentType^> (streamRef->OpenReadAsync()).
+    then([](task<IRandomAccessStreamWithContentType^> thisTask)
+    {
+        IRandomAccessStreamWithContentType^ fileStream = thisTask.get();
+        return BitmapDecoder::CreateAsync(fileStream);
+    }).
+    then([](task<BitmapDecoder^> thisTask)
+    {
+        BitmapDecoder^ decoder = thisTask.get();
+        return decoder->GetFrameAsync(0);
+    }).
+    then([this](task<BitmapFrame^> thisTask)
+    {
+        BitmapFrame^ frame = thisTask.get();
+
+        // Save some information as fields
+        frameWidth = frame->PixelWidth;
+        frameHeight = frame->PixelHeight;
+
+        return frame->GetPixelDataAsync();
+    }).
+    then([this](task<PixelDataProvider^> thisTask)
+    {
+        PixelDataProvider^ pixelProvider = thisTask.get();
+        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);
+    }
+}

samples/winrt/OcvImageProcessing/OcvImageProcessing/MainPage.xaml.h

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+//
+// MainPage.xaml.h
+// Declaration of the MainPage class.
+//
+
+#pragma once
+
+#include "MainPage.g.h"
+#include <opencv2\core\core.hpp>
+#include <opencv2\imgproc\imgproc.hpp>
+#include <opencv2\features2d\features2d.hpp>
+
+namespace OcvImageProcessing
+{
+    /// <summary>
+    /// An empty page that can be used on its own or navigated to within a Frame.
+    /// </summary>
+    public ref class MainPage sealed
+    {
+    public:
+        MainPage();
+
+    protected:
+        virtual void OnNavigatedTo(Windows::UI::Xaml::Navigation::NavigationEventArgs^ e) override;
+
+    private:
+        static const int PREVIEW  = 0;
+        static const int GRAY     = 1;
+        static const int CANNY    = 2;
+        static const int BLUR     = 3;
+        static const int FEATURES = 4;
+        static const int SEPIA    = 5;
+
+        void Button_Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e);
+        cv::Mat ApplyGrayFilter(const cv::Mat& image);
+        cv::Mat ApplyCannyFilter(const cv::Mat& image);
+        cv::Mat ApplyBlurFilter(const cv::Mat& image);
+        cv::Mat ApplyFindFeaturesFilter(const cv::Mat& image);
+        cv::Mat ApplySepiaFilter(const cv::Mat& image);
+
+        void UpdateImage(const cv::Mat& image);
+
+        cv::Mat Lena;
+        unsigned int frameWidth, frameHeight;
+    };
+}

samples/winrt/OcvImageProcessing/OcvImageProcessing/OcvImageProcessing.vcxproj

@@ -0,0 +1,293 @@
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+      <DependentUpon>MainPage.xaml</DependentUpon>
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+    </None>
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+</Project>

samples/winrt/OcvImageProcessing/OcvImageProcessing/OcvImageProcessing.vcxproj.filters

@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Common">
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+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\StoreLogo.png">
+      <Filter>Assets</Filter>
+    </Image>
+    <Image Include="Assets\SplashScreen.png">
+      <Filter>Assets</Filter>
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+</Project>

samples/winrt/OcvImageProcessing/OcvImageProcessing/Package.appxmanifest

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Package xmlns="http://schemas.microsoft.com/appx/2010/manifest">
+  <Identity Name="96635370-3751-48a8-84a6-afd4229cf435" Publisher="CN=asmorkalov" Version="1.0.0.0" />
+  <Properties>
+    <DisplayName>OcvImageProcessing</DisplayName>
+    <PublisherDisplayName>asmorkalov</PublisherDisplayName>
+    <Logo>Assets\StoreLogo.png</Logo>
+  </Properties>
+  <Prerequisites>
+    <OSMinVersion>6.2.1</OSMinVersion>
+    <OSMaxVersionTested>6.2.1</OSMaxVersionTested>
+  </Prerequisites>
+  <Resources>
+    <Resource Language="x-generate" />
+  </Resources>
+  <Applications>
+    <Application Id="App" Executable="$targetnametoken$.exe" EntryPoint="OcvImageProcessing.App">
+      <VisualElements DisplayName="OcvImageProcessing" Logo="Assets\Logo.png" SmallLogo="Assets\SmallLogo.png" Description="OcvImageProcessing" ForegroundText="light" BackgroundColor="#464646">
+        <DefaultTile ShowName="allLogos" />
+        <SplashScreen Image="Assets\SplashScreen.png" />
+      </VisualElements>
+    </Application>
+  </Applications>
+</Package>

samples/winrt/OcvImageProcessing/OcvImageProcessing/pch.cpp

@@ -0,0 +1,6 @@
+//
+// pch.cpp
+// Include the standard header and generate the precompiled header.
+//
+
+#include "pch.h"

samples/winrt/OcvImageProcessing/OcvImageProcessing/pch.h

@@ -0,0 +1,9 @@
+//
+// pch.h
+// Header for standard system include files.
+//
+
+#pragma once
+
+#include <collection.h>
+#include "App.xaml.h"