Convert uchar Mat to float Mat in OpenCV?

Question

In OpenCV, if I have a Mat img that contains uchar data, how do I convert the data into float? Is there a function available? Thank you.

Answer 1

Use cvConvert function. In Python:

import cv
m = cv.CreateMat(2, 2, cv.CV_8UC1)
m1 = cv.CreateMat(2, 2, cv.CV_32FC1)
cv.Convert(m, m1)