SOL9 2.0 Samples

1 Screenshot

2 Source code

/*
 * ImageTransformationByColorFilter.cpp 
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. 
 */


//2017/10/01
// Simple linear filter based on cv::filter2D API.
//
//  See: http://docs.opencv.org/3.0-beta/modules/imgproc/doc/filtering.html

#define _CONSOLE_

#include <sol/ModuleFileName.h>
#include <sol/DropFiles.h>
#include <sol/LabeledTrackBar.h>
#include <sol/FileDialog.h>
#include <sol/opencv/OpenCVApplicationView.h>
#include <sol/opencv/OpenCVScaleComboBox.h>
#include <sol/opencv/OpenCVScrolledImageView.h>

namespace SOL {

class MainView :public OpenCVApplicationView {
private:
  typedef enum {
    GOLD = 0,
    GRAY,
    GREEN,
    SEPIA,
    VIOLET,
  } FILTER;
  
private:
  ////////////////////////////////////////////////////////////////////////////////////////
  //Inner classes start.
  class OriginalImageView :public OpenCVScrolledImageView {
  private:
    cv::Mat originalImage;
        
  public:
    OriginalImageView(View* parent, const char* name, Args& args)
    :OpenCVScrolledImageView(parent, name, args)
    {
      try {
        const char* filename = (const char*)args.get(XmNimageFileName);
        int imageLoadingFlag = args.get(XmNimageLoadingFlag);
        int scalingRatio     = args.get(XmNimageScalingRatio);
        loadImage(filename, imageLoadingFlag, scalingRatio);
      } catch (SOL::Exception ex) {
        caught(ex);
      }
    }
    
    ~OriginalImageView()
    {
    }
    
    void loadImage(const char* filename, int imageLoadingFlag= CV_LOAD_IMAGE_COLOR, int scalingRatio=100)
    {
      try {
        originalImage = readImage(filename, imageLoadingFlag);
        setScaledImage(originalImage, scalingRatio);
        
      } catch (Exception& ex) {
        caught(ex);
      }
    }
    
    void rescale(int scalingRatio)
    {
      setScaledImage(originalImage, scalingRatio);
    }
  };
  
  class TransformedImageView :public OpenCVScrolledImageView {
  private:
    cv::Mat originalImage;
    cv::Mat filteredImage;
  
  public:
    TransformedImageView(View* parent, const char* name, Args& args)
    :OpenCVScrolledImageView(parent, name, args)
    {
      try {
        const char* filename = (const char*)args.get(XmNimageFileName);
        int imageLoadingFlag = args.get(XmNimageLoadingFlag);
        int scalingRatio     = args.get(XmNimageScalingRatio);
        loadImage(filename, imageLoadingFlag, scalingRatio);
      } catch (SOL::Exception ex) {
        caught(ex);
      }
    }
    
    ~TransformedImageView()
    {
    }
    
    void loadImage(const char* filename, int imageLoadingFlag= CV_LOAD_IMAGE_COLOR, int scalingRatio=100)
    {
      try {
        originalImage = readImage(filename, imageLoadingFlag);
        filteredImage  = originalImage;
        setScaledImage(filteredImage, scalingRatio);
        
      } catch (Exception& ex) {
        caught(ex);
      }
    }
    
    void transform(FILTER filter, int scalingRatio)
    {
      try {
        cv::Mat filters[5];
        //gold
        filters[GOLD] = (cv::Mat_<float>(3,3) <<
          0.114f, 0.114f, 0.114f,
          0.299f, 0.299f, 0.299f,
          0.587f, 0.587f, 0.587f
        );
        //gray
        filters[GRAY] = (cv::Mat_<float>(3,3) <<
          0.5f, 0.5f, 0.5f,
          0.5f, 0.5f, 0.5f,
          0.5f, 0.5f, 0.5f);
        //green
        filters[GREEN] = (cv::Mat_<float>(3,3) <<
          0.114f, 0.114f, 0.114f,
          0.587f, 0.587f, 0.587f, 
          0.299f, 0.299f, 0.299f
        );
        //sepia
        filters[SEPIA] = (cv::Mat_<float>(3,3) << 
          0.272, 0.534, 0.131,
          0.349, 0.686, 0.168, 
          0.393, 0.769, 0.189);
        //violet
        filters[VIOLET] = (cv::Mat_<float>(3,3) <<
          0.587f, 0.587f, 0.587f,
          0.114f, 0.114f, 0.114f,
          0.299f, 0.299f, 0.299f
        );
        
        cv::Mat newImage = originalImage.clone();
      
        cv::transform(originalImage, 
                   newImage, 
                   filters[filter]); 
        filteredImage = newImage;
      
        setScaledImage(filteredImage, scalingRatio);
      
        refresh();
      } catch (SOL::Exception& ex) {
        caught(ex);
      } 
    }
    
    void rescale(int scalingRatio)
    {
      setScaledImage(filteredImage, scalingRatio);
    }
    
  };
  //Inner classes end.
  ////////////////////////////////////////////////////////////////////////////////////////
  
  
  StringT<char>                  imageFile;
  
  StringT<char>                  savedImageFile;
  
  SmartPtr<OriginalImageView>    originalImage;
  
  SmartPtr<TransformedImageView> filteredImage;
  
  int                            imageScalingRatio;
  SmartPtr<OpenCVScaleComboBox>  scaleComboBox;
 
  FILTER                         filter;
  SmartPtr<LabeledComboBox>      filterComboBox;
  
  FileDialog                     filedlg;

  void updateCaption()
  {
    char caption[MAX_PATH];
    sprintf_s(caption, CountOf(caption), "%s - %s", 
        (const char*)imageFile, 
        getAppName()); 
        
    setText(caption);
  }

  void scaleChanged(Action& action)
  {
    imageScalingRatio = scaleComboBox->getScale();
    originalImage -> rescale(imageScalingRatio);
    filteredImage -> rescale(imageScalingRatio);
  }

  void filterChanged(Action& action)
  {
    filter = (FILTER)filterComboBox->getCurSel();
    filteredImage -> transform(filter, imageScalingRatio);
  }

  void resize(int w, int h)
  {
    if (originalImage && filteredImage &&  scaleComboBox) {
      originalImage  -> reshape(2,           2,  (w-160)/2-1,    h-4);
      filteredImage  -> reshape((w-160)/2+1, 2,  (w-160)/2-1,    h-4);
      scaleComboBox  -> reshape(w-155 + 10,  0,          140,     50);      
      filterComboBox -> reshape(w-155 + 10, 70,          140,     60);      
    }
  }

  void openFile(const char* filename)
  {
    try {
      originalImage -> loadImage(filename);
      filteredImage  -> loadImage(filename);
      const char* fname = strrchr(filename, '\\');
      if (fname) {
        fname++;
      }
      imageFile = fname;
      originalImage -> rescale(imageScalingRatio);
      filteredImage -> transform(filter, imageScalingRatio);
      updateCaption();
      
    } catch (Exception& ex) {
      caught(ex);
    }
  }
  
  
  void dropFiles(Action& action)
  {
    char fileName[MAX_PATH] = { 0 };
    DropFiles drop((HDROP)action.getWParam());
    int num = drop.queryFile(0, fileName, CountOf(fileName));
    if(num > 0) {
      if (filedlg.isImageFileName(fileName)) {
        openFile(fileName);
        bringUp();
      } else {        
        bringUp(); //Activate and raise this view
        showErrorDialog("Invalid image filename", fileName,  MB_OK);
      }
    } 
  }

  void confirm(Action& action)
  {
    int rc = MessageBox(NULL, "Are you sure to close this window?", "Confirmation", 
                MB_OKCANCEL|MB_ICONEXCLAMATION);
    if (rc == IDOK) {
      exit(action);
    }
  }
  
public:
  MainView(OpenCVApplication& applet, const char* name, Args& args)
  :OpenCVApplicationView(applet, name, args)
  {
    try {
      imageScalingRatio = 60;
      
      imageFile = "..\\images\\flower.png";
      
      int  imageLoadingFlag = CV_LOAD_IMAGE_COLOR;
      Args ar;
      ar.set(XmNimageFileName, imageFile);
      ar.set(XmNimageLoadingFlag, imageLoadingFlag);
      ar.set(XmNimageScalingRatio, imageScalingRatio);
      
      originalImage = new OriginalImageView(this, "", ar); 
      originalImage -> addCallback(XmNdropCallback, this,
        (Callback)&MainView::dropFiles, NULL);
      
      ar.reset();
      ar.set(XmNimageFileName, imageFile);
      ar.set(XmNimageLoadingFlag, imageLoadingFlag);
      ar.set(XmNimageScalingRatio, imageScalingRatio);
      filteredImage = new TransformedImageView(this, "", ar); 

      ar.reset();
      scaleComboBox = new OpenCVScaleComboBox(this, "Scale", ar);
      scaleComboBox -> addCallback(XmNselChangeCallback, this,
        (Callback)&MainView::scaleChanged, NULL);
            
      const char* items[] = {
        "Gold", "Gray", "Green", "Sepia", "Violet"};

      filter = SEPIA;
      ar.reset();
      filterComboBox = new LabeledComboBox(this, "Filter", ar);
      for (int i = 0; i<CountOf(items); i++) {
        filterComboBox->addString(items[i]);
      }
      filterComboBox->setCurSel((int)filter);
      
      filterComboBox -> addCallback(XmNselChangeCallback, this,
        (Callback)&MainView::filterChanged, NULL);
 
      addCallback(XmNmenuCallback, IDM_EXIT, this,
          (Callback)&MainView::confirm, NULL);

      filteredImage -> transform(filter, imageScalingRatio);
   
      updateCaption();  

      ar.reset();
      ar.set(XmNfilter, FileDialog::getImageFilesFilter());
      filedlg.create(this, "OpenFile", ar);
      
    } catch (Exception& ex) {
      caught(ex);
    }
  }

  ~MainView()
  {
  }

  void open(Action& action)
  {
    Args ar;
    
    char dir[MAX_PATH] = { 0 };
    if (restoreFileFolder(dir, CountOf(dir))) {
      ar.set(XmNdirectory, dir);
      filedlg.setValues(ar);
    }
    
    try {    
      if(filedlg.open()) {
    
        const char* filename = filedlg.getFileName();
        saveFileFolder(filename);

        openFile(filename);
        
      }
    } catch (Exception& ex) {
      caught(ex);
    }
  }

  //2017/12/01
  void save(Action& action)
  {
    try {
      if (!savedImageFile.isEmpty()) {
        //Write filtered image into the filename.
        filteredImage->writeImage(savedImageFile);
      } else {
        saveAs(action);
      }
    } catch (Exception& ex) {
      caught(ex);
    }
  }
  
  //2017/12/01
  void saveAs(Action& action)
  {
    Args ar;
    
    char dir[MAX_PATH] = { 0 };
    if (restoreFileFolder(dir, CountOf(dir))) {
      ar.set(XmNdirectory, dir);
      filedlg.setValues(ar);
    }
    
    try {    
      if(filedlg.save()) {
    
        const char* filename = filedlg.getFileName();
        saveFileFolder(filename);
        
        //Write filtered image into the filename.
        filteredImage->writeImage(filename);
        savedImageFile = filename;
      }
    } catch (Exception& ex) {
      caught(ex);
    }
  }
};
}

//
void main(int argc, char** argv) 
{
  try {
    ModuleFileName module(argv[0]);
    
    const char*  name = module.getAppName();
        
    OpenCVApplication applet(name, argc, argv);

    Args args;
    args.set(XmNwidth,  900);
    args.set(XmNheight, 380);
    MainView view(applet, name, args);
    view.realize();

    applet.run();
    
  } catch (SOL::Exception& ex) {
    caught(ex);
  }
}