cvResize function with JavaCV

Question

表示我在这里使用了错误的类型。img和image都是iplImages，我应该使用什么类型，如何使用?谢谢

                    IplImage image = IplImage.create(120, 120, IPL_DEPTH_8U, 4);
                    //resize the image
                     cvResize(img,image);
                    cvSaveImage("4-rjb" + capture + ".pgm", img);

Answer 1

应该能行

IplImage resizeImage = IplImage.create(120, 120, origImg.depth(), origImg.nChannels());

，这里有一个完整的例子

OpenCVFrameGrabber frameGrabber = new OpenCVFrameGrabber(video_in);
try {
    frameGrabber.start();
    IplImage origImg = frameGrabber.grab();
    IplImage resizedImage = IplImage.create(IMG_WIDTH, IMG_HEIGHT, origImg.depth(), origImg.nChannels());
    //cvSmooth(origImg, origImg);
    cvResize(origImg, resizedImage);
    cvSaveImage(image_out.getAbsolutePath(),resizedImage);
    cvReleaseImage(resizedImage);
} catch (OpenCVFrameGrabber.Exception e) {
    e.printStackTrace();
    throw new NullPointerException("fileExtension");
}

Answer 2

您应该使用与源图像相同的通道数

Answer 3

将IPL_DEPTH_8U参数替换为img.nChannels()