| OZ++ Sample: ImageStitcher |
/****************************************************************************** * * 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. * * * ImageStitcher.cpp * *****************************************************************************/ // 2019/01/01 Modified create method not to use the second parameter //2017/10/10 We redefine Status in X11 as XtStatus to avoid type collision // in cv::Stitcher::Status. //#define Status XtStatus #include <opencv2/stitching.hpp> #include <oz++/Pair.h> #include <oz++/SmartPtr.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> #include <opencv2/features2d/features2d.hpp> #undef Status #include <opencv2/stitching.hpp> #include "PrivateFileMenu.h" namespace OZ { class MainView :public OpenCVMainView { private: /////////////////////////////////////////////// //Inner classes start. class SourceImageView: public OpenCVImageView { private: cv::Mat originalImage; cv::Mat scaledImage; virtual void display() { show(scaledImage); } public: SourceImageView(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); } } ~SourceImageView() { } cv::Mat& getMat() { return originalImage; } cv::Mat getClone() { return originalImage.clone(); } 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 StitchedImageView: public OpenCVImageView { private: cv::Mat stitchedImage; cv::Mat scaledImage; //The scale image is displayed on this image view. virtual void display() { show(scaledImage); } public: StitchedImageView(View* parent, const char* name, Args& args) :OpenCVImageView(parent, name, args) { refresh(); } ~StitchedImageView() { } void rescale(int scalingRatio) { scaledImage.release(); scaleImage(stitchedImage, scaledImage, scalingRatio); } void setStitchedImage(cv::Mat stitched, int scalingRatio) { stitchedImage = stitched; scaleImage(stitchedImage, scaledImage, scalingRatio); } }; //Inner classes end. private: static const int IMAGES_COUNT = 2; static const int FIRST = 0; static const int SECOND = 1; StringT<char> imageFiles[IMAGES_COUNT]; int fileOpenIndex; SmartPtr<SourceImageView> sourceImage[IMAGES_COUNT]; int imageLoadingFlag; int imageScalingRatio; //percentage SmartPtr<Label> label; SmartPtr<StitchedImageView> stitchedImage; SmartPtr<RowColumn> controlPane; SmartPtr<OpenCVScaleComboBox> scaleComboBox; int stitcherModeIndex; cv::Ptr<cv::Stitcher> stitcher; cv::Stitcher::Mode mode; SmartPtr<LabeledComboBox> stitcherModeComboBox; SmartPtr<PushButton> stitchButton; SmartPtr<FileOpenDialog> fileDialog; cv::Stitcher::Mode getStitcherMode(int index) { int n = 0; Pair<int, cv::Stitcher::Mode> types[] = { {n++, cv::Stitcher::PANORAMA }, {n++, cv::Stitcher::SCANS } }; mode = cv::Stitcher::PANORAMA; if (index >= 0 && index <n) { mode = types[index].second; } return mode; } const char* getErrorMessage(cv::Stitcher::Status status) { static const Pair<const char*, cv::Stitcher::Status> errors[] = { {"Need more images", cv::Stitcher::ERR_NEED_MORE_IMGS}, {"Homography est fail", cv::Stitcher::ERR_HOMOGRAPHY_EST_FAIL}, {"Camera params adjust fail", cv::Stitcher::ERR_CAMERA_PARAMS_ADJUST_FAIL} }; const char* err = ""; for (int i = 0; i <CountOf(errors); i++) { if (status == errors[i].second) { err = errors[i].first; break; } } return err; } void stitch(Action& action) { stitchImages(); } void stitchImages() { std::vector<cv::Mat> images; images.push_back( sourceImage[FIRST ]->getClone() ); images.push_back( sourceImage[SECOND ]->getClone() ); cv::Mat panorama; cv::Stitcher::Status status = stitcher->stitch(images, panorama); if (status == cv::Stitcher::OK) { stitchedImage->setStitchedImage(panorama, imageScalingRatio); } else { char message[1024]; const char* err = getErrorMessage(status); sprintf(message, "Failed to Stitcher::stitch method error:%s", err); throw IException("Failed to stitch images:%s", message); } } //Callback for the stitcherModeComboBox void stitcherModeChanged(Action& action) { int index = stitcherModeComboBox -> getSelectedPosition(); if (stitcherModeIndex != index) { stitcherModeIndex = index; mode = getStitcherMode(index); //Rebuild stitcher. stitcher = cv::Stitcher::create(mode); stitchImages(); } } public: void scaleChanged(Action& action) { int val = scaleComboBox->getScale(); if (val > 0 && imageScalingRatio != val) { imageScalingRatio = val; sourceImage[FIRST] -> rescale(imageScalingRatio); sourceImage[SECOND] -> rescale(imageScalingRatio); stitchedImage -> rescale(imageScalingRatio); } } void fileOpen(int index, Action& action) { fileOpenIndex = index; fileDialog->popup(); } void updateLabel() { char path[PATH_MAX]; sprintf(path, "%s, %s", (const char*)imageFiles[0], (const char*)imageFiles[1]); label -> setText(path); } //OK button callback for FileOpenDialog void ok(Action& action) { try { imageFiles[fileOpenIndex] = fileDialog->getFileName(); const char* filename = (const char*)imageFiles[fileOpenIndex]; printf("filename: %s\n", filename); fileDialog->popdown(); sourceImage[fileOpenIndex]->invalidate(); sourceImage[fileOpenIndex]->loadImage(filename, imageLoadingFlag, imageScalingRatio); updateLabel(); resize(width(), height()); flush(); } catch (OZ::Exception& ex) { caught(ex); } } void resize(Dimension w, Dimension h) { int CP_WIDTH = 220; int LB_HEIGHT = 30; int ww = w-CP_WIDTH; int hh = h - LB_HEIGHT; if (label && sourceImage[0] && stitchedImage && controlPane ) { label -> reshape(0, 0, w, LB_HEIGHT); sourceImage[0]-> reshape(0, LB_HEIGHT, ww/2, hh/2-4 ); sourceImage[1] -> reshape(ww/2, LB_HEIGHT, ww/2-1, hh/2-4); stitchedImage -> reshape(0, hh/2-2, ww, hh/2); controlPane -> reshape(ww-1, LB_HEIGHT, CP_WIDTH+1, hh); controlPane -> unmap(); controlPane -> map(); } flush(); } //Callback to handle file pulldown events. virtual void privateFileMenu(Action& action) { menuId = action.getClientIntData(); switch(menuId) { case NEW: fileNew(action); break; case OPEN_FILE1: fileOpen(FIRST, action); break; case OPEN_FILE2: fileOpen(SECOND, action); break; case SAVE: fileSave(action); break; case SAVE_AS: fileSaveAs(action); break; case EXIT: confirm(action); break; } } virtual void addFilePulldownMenu() { //1 Recreate pulldown menu for File. MenuBar* menubar = getMenuBar(); getFileMenuButton() -> recreatePulldownMenu(menubar, "file"); //2 Add PrivateFileItems to the FilePulldown. getFileMenuButton() -> addItems(PrivateFileItems, XtNumber(PrivateFileItems), this, (Callback)&MainView::privateFileMenu); } public: MainView(OpenCVApplication& applet, const char* name, Args& args) :OpenCVMainView(applet, name, args) { addFilePulldownMenu(); BulletinBoard* bboard = getBulletinBoard(); imageLoadingFlag = CV_LOAD_IMAGE_COLOR; imageScalingRatio = 60; //% try { imageFiles[FIRST] = "../images/Lake2.png"; imageFiles[SECOND] = "../images/Lake1.png"; //1 Create a label to display image file names. Args ar; ar.set(XmNalignment, XmALIGNMENT_BEGINNING); label = new Label(bboard, "", ar); updateLabel(); int imageLoadingFlag = CV_LOAD_IMAGE_COLOR; //2 Create two sourceImages. for (int i = 0; i< IMAGES_COUNT; i++) { ar.reset(); ar.set(XmNimageFileName, imageFiles[i]); ar.set(XmNimageLoadingFlag, imageLoadingFlag); sourceImage[i] = new SourceImageView(bboard, "", ar); sourceImage[i]->rescale(imageScalingRatio); } //3 Create a feature stitched imageView ar.reset(); stitchedImage = new StitchedImageView(bboard, "", ar); //4 Create a rowColumn controlPane to manage controls. ar.reset(); controlPane = new RowColumn(bboard, "", ar); //5 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); //6 Create a stitcherModeComboBox. ar.reset(); const char* items[] = { "Panorama", "Scans",}; stitcherModeIndex = 0; mode = cv::Stitcher::PANORAMA; CompoundStringList csl(items, CountOf(items)); ar.set(XmNitems, csl); ar.set(XmNitemCount, CountOf(items)); ar.set(XmNselectedPosition, stitcherModeIndex); stitcherModeComboBox = new LabeledComboBox(controlPane, "FeatureDetector", ar); stitcherModeComboBox -> addCallback(XmNselectionCallback, this, (Callback)&MainView::stitcherModeChanged, NULL); //7 Create an instance of cv::Stitcher. stitcher = cv::Stitcher::create(mode); //8 Create a stitch push button. ar.reset(); stitchButton = new PushButton(controlPane, "Stitch", ar); stitchButton -> addCallback(XmNactivateCallback, this, (Callback)&MainView::stitch, NULL); 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, 540); MainView view(applet, argv[0], args); view.realize(); applet.run(); } catch (OZ::Exception& ex) { caught(ex); } return 0; }