openCv crop image

Question

I running into problems with my openCv IplImage cropping. Assuming both tmp and img are IplImage* . Using the code:

printf(\"Orig dimensions: %dx%d\\n\", im         


        

Answer 1

Image cropping using OpenCV

Mat image=imread("image.png",1);

int startX=200,startY=200,width=100,height=100

Mat ROI(image, Rect(startX,startY,width,height));

Mat croppedImage;

// Copy the data into new matrix
ROI.copyTo(croppedImage);

imwrite("newImage.png",croppedImage);