我裁剪图像,并希望未来调整其大小。
Mat croppedimage = cropImage( image, rect );
Mat resizeimage = croppedimage.resize( any dimension ); //need to change this line
我怎样才能做到这一点?
我想,你想this。
EG
Mat croppedimage = cropImage(image,rect);
Mat resizeimage = new Mat();
Size sz = new Size(100,100);
Imgproc.resize( croppedimage, resizeimage, sz );
Mat croppedImage = cropImage(image,rect);
Mat resizeImage = new Mat(anyHeight, anyWidth, croppedImage.type());
int interpolation = Imgproc.INTER_CUBIC;
Imgproc.resize(croppedImage, resizeImage, resizeImage.size(), 0, 0, interpolation );
如果你想使用OpenCV的Java来缩放图像,然后进行以下操作:
import static org.opencv.imgproc.Imgproc.*;
import static org.opencv.imgcodecs.Imgcodecs.imread;
主要的代码:
Mat src = imread("imageName.jpg");
Mat resizeimage = new Mat();
Size scaleSize = new Size(300,200);
resize(src, resizeimage, scaleSize , 0, 0, INTER_AREA);
对于缩减推荐使用:INTER_AREA和倍增使用INTER_CUBIC
有关详细信息:OpenCV Ref for Resize