Hello All.
I heard in this forum before that it isnt recomended work or make an operation pixel by pixel and its more convenient use a function defined in opencv headers and librarys. But that opencv's functions have to work pixel by pixel or there is another way?
For example in this post.
http://answers.opencv.org/question/183494/copy-half-image/
I needed to copy a half image and first I did it with a for().
Why is not recomended use a loop?
Thanks in advance. its a theorical question.