Es++ Class: OpenCVImageConverter |
/****************************************************************************** * * Copyright (c) 2017 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. * * * OpenCVImageConverter.h * *****************************************************************************/ #pragma once #include <es++/Exception.h> #include <es++/opencv-3.0/OpenCVObject.h> namespace Es { class OpenCVImageConverter { public: //Convert cv::Mat to Gdk::Pixbuf; static Glib::RefPtr<Gdk::Pixbuf> convertToPixbuf(cv::Mat& m) { IplImage image = m; dprintf("fromMatToPixbuf depth=%d channels=%d\n", image.depth, image.nChannels); CvMat* mat, stub; mat = cvGetMat(&image, &stub); //CV_8UC3 is color 24 bit cvMat image. CvMat* destImage = cvCreateMat(mat->rows, mat->cols, CV_8UC3); if (destImage == NULL) { throw Es::IException("Failed to cvCreateMat"); } int origin = image.origin; //Flipping or Swapping of Red and Blue cvConvertImage(mat, destImage, (origin != 0 ? CV_CVTIMG_FLIP : 0) + CV_CVTIMG_SWAP_RB ); Glib::RefPtr<Gdk::Pixbuf> pixbuf = Glib::wrap(gdk_pixbuf_new_from_data( destImage->data.ptr, GDK_COLORSPACE_RGB , false, 8, destImage->cols, destImage->rows, destImage->step, NULL, NULL) ); //Don't need release destImage. // cvReleaseMat(&destImage); return pixbuf; } }; }