OpenCV imwrite() not saving image

Question

I am trying to save an image from OpenCV on my mac and I am using the following code and so far it has not been working.

cv::imwrite(\"/Users/nickporter/Desk         


        

Answer 1

OpenCV does have problems in saving to JPG images sometimes, try to save to BMP instead:

cv::imwrite("/Users/nickporter/Desktop/Gray_Image.bmp", cvImage);

Also, before this, make sure you image cvImage is valid. You can check it by showing the image first:

namedWindow("image", WINDOW_AUTOSIZE);
imshow("image", cvImage);
waitKey(30);