/****************************************************************************** * * Copyright (c) 2019 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer. * * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. * * * AdaptiveImageThresholding.cpp * *****************************************************************************/ //2017/05/15 //2019/01/03 #include <opencv2/stitching.hpp> #include <oz++/Pair.h> #include <oz++/motif/Label.h> #include <oz++/motif/RowColumn.h> #include <oz++/motif/LabeledTrackBar.h> #include <oz++/opencv/OpenCVScaleComboBox.h> #include <oz++/opencv/OpenCVMainView.h> #include <oz++/opencv/OpenCVImageView.h> #include <oz++/motif/FileOpenDialog.h> namespace OZ { class MainView :public OpenCVMainView { private: typedef enum { COLOR_MODEL_HSV = 0, COLOR_MODEL_YCRCB } COLOR_MODEL; private: /////////////////////////////////////////////// //Inner classes start. class OriginalImageView: public OpenCVImageView { private: cv::Mat originalImage; cv::Mat scaledImage; virtual void display() { show(scaledImage); } public: OriginalImageView(View* parent, const char* name, Args& args) :OpenCVImageView(parent, name, args) { try { const char* filename = (const char*)args.get(XmNimageFileName); int imageLoadingFlag = args.get(XmNimageLoadingFlag); int scalingRatio = (int)args.get(XmNimageScalingRatio); loadImage(filename, imageLoadingFlag, scalingRatio); } catch (OZ::Exception ex) { caught(ex); } } ~OriginalImageView() { } void loadImage(const char* filename, int imageLoadingFlag= CV_LOAD_IMAGE_COLOR, int scalingRatio=100) { originalImage = readImage(filename, imageLoadingFlag); scaleImage(originalImage, scaledImage, scalingRatio); } void rescale(int scalingRatio) { scaledImage.release(); scaleImage(originalImage, scaledImage, scalingRatio); } }; class HistgrammedImageView: public OpenCVImageView { private: cv::Mat originalImage; cv::Mat destImage; cv::Mat scaledImage; //The scale image is displayed on this image view. virtual void display() { show(scaledImage); } public: HistgrammedImageView(View* parent, const char* name, Args& args) :OpenCVImageView(parent, name, args) { try { const char* filename = (const char*)args.get(XmNimageFileName); int imageLoadingFlag = args.get(XmNimageLoadingFlag); int scalingRatio = (int)args.get(XmNimageScalingRatio); loadImage(filename, imageLoadingFlag, scalingRatio); } catch (OZ::Exception ex) { caught(ex); } } ~HistgrammedImageView() { } void loadImage(const char* filename, int imageLoadingFlag= CV_LOAD_IMAGE_COLOR, int scalingRatio=100) { originalImage = readImage(filename, imageLoadingFlag); destImage = originalImage.clone(); refresh(); } void rescale(int scalingRatio) { scaledImage.release(); scaleImage(destImage, scaledImage, scalingRatio); } void equalizeHistgram(COLOR_MODEL colorModel, int scalingRatio) { try { int equalizeChannel = 0; int toNewColorFormat = COLOR_BGR2HSV; int toOldColorFormat = COLOR_HSV2BGR; switch (colorModel) { case COLOR_MODEL_HSV: equalizeChannel = 2; toNewColorFormat = COLOR_BGR2HSV; toOldColorFormat = COLOR_HSV2BGR; break; case COLOR_MODEL_YCRCB: equalizeChannel = 0; toNewColorFormat = COLOR_BGR2YCrCb; toOldColorFormat = COLOR_YCrCb2BGR; break; default: break; } cv::Mat colorModeledImage; //Convert color-format from BGR to HSV or YCrCB cvtColor(originalImage, colorModeledImage, toNewColorFormat); //Split ycrcbImage to three channles. std::vector<Mat> channels(3); cv::split(colorModeledImage, channels); //Equalize a channel of channels specified equalizedChannel index. cv::equalizeHist(channels[equalizeChannel], channels[equalizeChannel]); //Merge three channels images to ycrcbImage cv::merge(channels, colorModeledImage); //Convert color-format HSV orYCrCb to BGR cv::cvtColor(colorModeledImage, destImage, toOldColorFormat); scaleImage(destImage, scaledImage, scalingRatio); } catch (cv::Exception& ex) { ; // } } }; //Inner classes end. private: StringT<char> imageFile; int imageLoadingFlag; int imageScalingRatio; //percentage SmartPtr<Label> label; SmartPtr<OriginalImageView> originalImage; SmartPtr<HistgrammedImageView> histgrammedImage; SmartPtr<RowColumn> controlPane; SmartPtr<OpenCVScaleComboBox> scaleComboBox; COLOR_MODEL colorModel; SmartPtr<LabeledComboBox> colorModelComboBox; SmartPtr<FileOpenDialog> fileDialog; public: void scaleChanged(Action& action) { int val = scaleComboBox->getScale(); if (val > 0 && imageScalingRatio != val) { imageScalingRatio = val; originalImage -> rescale(imageScalingRatio); histgrammedImage -> rescale(imageScalingRatio); } } //Horizontal Scroll event by TrackBars void colorModelChanged(Action& action) { colorModel = (COLOR_MODEL)colorModelComboBox->getSelectedPosition(); printf("colorModelChanged %d\n", colorModel); histgrammedImage -> equalizeHistgram(colorModel, imageScalingRatio); } void fileOpen(Action& action) { fileDialog->popup(); } void updateLabel(const char* filename) { CompoundString cs(filename); label->set(XmNlabelString, cs); } void ok(Action& action) { try { imageFile = fileDialog->getFileName(); const char* filename = (const char*)imageFile; printf("filename: %s\n", filename); fileDialog->popdown(); originalImage->invalidate(); originalImage->loadImage(filename, imageLoadingFlag, imageScalingRatio); originalImage->invalidate(); histgrammedImage ->loadImage(filename, imageLoadingFlag, imageScalingRatio); histgrammedImage -> equalizeHistgram(colorModel, imageScalingRatio); updateLabel(filename); resize(width(), height()); flush(); } catch (OZ::Exception& ex) { caught(ex); } } void resize(Dimension w, Dimension h) { int CP_WIDTH = 200; int LB_HEIGHT = 30; int ww = w-CP_WIDTH; int hh = h - LB_HEIGHT; if (label && originalImage && histgrammedImage && controlPane ) { label -> reshape(0, 0, w, LB_HEIGHT); originalImage-> reshape(0, LB_HEIGHT, ww/2, hh); histgrammedImage -> reshape(ww/2, LB_HEIGHT, ww/2-1, hh); controlPane -> reshape(ww-1, LB_HEIGHT, CP_WIDTH+1, hh); controlPane -> unmap(); controlPane -> map(); } flush(); } public: MainView(OpenCVApplication& applet, const char* name, Args& args) :OpenCVMainView(applet, name, args) { BulletinBoard* bboard = getBulletinBoard(); imageFile = "../images/flower.png"; imageLoadingFlag = CV_LOAD_IMAGE_COLOR; imageScalingRatio = 60; //% try { Args ar; CompoundString fileNamecs(imageFile); ar.set(XmNlabelString, fileNamecs); ar.set(XmNalignment, XmALIGNMENT_BEGINNING); label = new Label(bboard, "", ar); ar.reset(); ar.set(XmNimageFileName, imageFile); ar.set(XmNimageLoadingFlag, imageLoadingFlag); ar.set(XmNimageScalingRatio, imageScalingRatio); originalImage = new OriginalImageView(bboard, "", ar); ar.reset(); ar.set(XmNimageFileName, imageFile); ar.set(XmNimageLoadingFlag, imageLoadingFlag); ar.set(XmNimageScalingRatio, imageScalingRatio); histgrammedImage = new HistgrammedImageView(bboard, "", ar); ar.reset(); controlPane = new RowColumn(bboard, "", ar); //Create a scaleComboBox in the controlPane const char* defaultScale = "60%"; ar.reset(); CompoundString scaler("Scale"); ar.set(XmNlabelString, scaler); ar.set(XmNdefaultScale, defaultScale); scaleComboBox = new OpenCVScaleComboBox(controlPane, "", ar); scaleComboBox->addCallback(XmNselectionCallback, this, (Callback)&MainView::scaleChanged, NULL); //Create a colorModelComboBx const char* models[] = { "HSV", "YCrCb", }; CompoundStringList csl(models, CountOf(models)); colorModel = COLOR_MODEL_HSV; ar.reset(); ar.set(XmNitems, csl); ar.set(XmNitemCount, CountOf(models)); ar.set(XmNvalue, colorModel); colorModelComboBox = new LabeledComboBox(controlPane, "ColorModel", ar); //Add a colorModelChanged callback to the colorModelComboBox. colorModelComboBox -> addCallback(XmNselectionCallback, this, (Callback)&MainView::colorModelChanged, NULL); histgrammedImage -> equalizeHistgram(colorModel, imageScalingRatio); ar.reset(); fileDialog = new FileOpenDialog(this, "FileOpenDialog", ar); fileDialog -> getOkButton() -> addCallback(XmNactivateCallback, this, (Callback)&MainView::ok, NULL); sendConfigureEvent(); } catch(OZ::Exception& ex) { caught(ex); } } ~MainView() { } }; } // int main(int argc, char** argv) { try { const char* appclass = argv[0]; OpenCVApplication applet(appclass, argc, argv); Args args; args.set(XmNwidth, 900); args.set(XmNheight, 380); MainView view(applet, argv[0], args); view.realize(); applet.run(); } catch (OZ::Exception& ex) { caught(ex); } return 0; }