mat = cv::Mat(image.height(), image.width(), CV_8UC3, (void*)image.constBits(), image.bytesPerLine()); cv::cvtColor(mat, mat, CV_BGR2RGB); break; case QImage::Format_Indexed8: mat = cv::Mat(image.height(), image.width(), CV_8UC1, (void*)image.constBits(), image.bytes...
cv::Mat qimage2mat_ref(QImage &img, int format) { return cv::Mat(img.height(), img.width(), format, img.bits(), img.bytesPerLine()); } // Deep copy cv::Mat qimage2mat_ref(QImage &img, int format) { return cv::Mat(img.height(), img.width(), format, const_cast<uchar*>...
mat = cv::Mat(image.height(), image.width(), CV_8UC4, (void*)image.constBits(), image.bytesPerLine()); break; case QImage::Format_RGB888: mat = cv::Mat(image.height(), image.width(), CV_8UC3, (void*)image.constBits(), image.bytesPerLine()); cv::cvtColor(mat, mat, CV...
它尽可能高效。QImage Mat2QImage(const cv::Mat3b &src)&...
// cv::Mat转QImage函数 QImagematToQImage(constcv::Mat&mat) { // 检查输入图像的有效性和格式 if(mat.empty()) returnQImage(); // 根据图像颜色通道数确定适当的格式 intformat; switch(mat.channels()) { case1: format=QImage::Format_Grayscale8; ...
cv::Mat qimage2mat_ref(QImage &img, int format) { return cv::Mat(img.height(), img.width(), format, img.bits(), img.bytesPerLine()); } // Deep copy cv::Mat qimage2mat_ref(QImage &img, int format) { return cv::Mat(img.height(), img.width(), format, const_cast<uchar*>...
I've found very similiar topic: how to convert an opencv cv::Mat to qimage , but it does not solve my problem. I have function converting cv::Mat to QImage QImage cvMatToQImg(cv::Mat& mat) { cv::Mat rgb; if(mat.channels()==1) { cv::cvtColor(mat,rgb,CV_GRAY2BGR); cv::...
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1 QPixmap MainWindow::opencvToQImage(const QString &str) 2 { 3 cv::Mat cvImage = cv::imread(str.toStdString(),cv::IMREAD_REDUCED_COLOR_2); 4 cv::Mat resizeMat; 5 cv::resize(cvImage, resizeMat, cv::Size(ui->label->width(),ui->label->height()), 0, 0, cv::INTER_AREA)...