Using OpenCL accelerated functions with OpenCV3 in Python

Question

OpenCV3 introduced its T-API (Transparent API) which gives the user the possibility to use functions which are GPU (or other OpenCL enabled device) accelerated, I\'m struggl

Answer 1

The Transparent API is supported in OpenCV 3.2 and above. Here is an example code.

import cv2

img = cv2.UMat(cv2.imread("image.jpg", cv2.IMREAD_COLOR))
imgUMat = cv2.UMat(img)
gray = cv2.cvtColor(imgUMat, cv2.COLOR_BGR2GRAY)
gray = cv2.GaussianBlur(gray, (7, 7), 1.5)
gray = cv2.Canny(gray, 0, 50)

cv2.imshow("edges", gray)
cv2.waitKey();

More details can be found at OpenCV Transparent API