opencv-show-pixel-value

Display images using OpenCV so that pixel values are displayed on mouse hover.

Basic usage

In place of:

cv::imshow("MyImage", myImage);
cv::waitKey(0);

try:

ShowPixelValue show("MyImage", myImage);
cv::waitKey(0);

Then, when the image is shown, hover your mouse on top of it.

Connecting windows to each other

In order to connect several windows (usually presenting intermediate or final results related to a single input), try:

ShowPixelValueConnecter connecter;
connecter
	.Add("Input", inputImage)
	.Add("Intermediate result 1", intermediateResult1)
	.Add("Intermediate result 2", intermediateResult2)
	.Add("Intermediate result 3", intermediateResult3)
	.Add("Result", result);
cv::waitKey(0);

Then, hover your mouse on top of one window to see the corresponding points and values in the other windows.