Compare two images, gray level, background difference method is used to do subtraction, set a threshold value, the result is greater than the threshold that you make alarm!!!!!
Does anyone can ah, I am a beginner, don't quite understand

CodePudding user response:

Background difference method is used to do subtraction

How bad, how to reduce? What is your intention?

CodePudding user response:

More pixel values??

CodePudding user response:

"Learning OpenCV (Chinese version)"