Pixel access in OpenCV 2.2

Question

Hi I want to use opencv to tell me the pixel values of a blank and white image so the output would look like this

10001
00040
11110   
00100

Answer 1

IplImage is the old format for images. You should use the new format, CvMat, which can store arbitrary matrices. An image is just a matrix, after all.

You can then access the pixels using the function cvGet2D, which returns a CvScalar.