Opencv Transparent Image I have seen the following question: How to crop image based on contents (Python & OpenCV)?, and after looking at the answer, and trying it, I got the following code: Oct 20, 2022 · I am trying to remove the checkered background (which represents transparent background in Adobe Illustrator and Photoshop) with transparent color (alpha channel) in some PNGs with Python script, Here's an example: Line with no transparency -> Result with alpha=0, How to do this? Mat background = imread(png1, IMREAD_UNCHANGED); //black text Mat img2 = imread(png2, cv::IMREAD_UNCHANGED); //red text img2, Naturally, I used Python with OpenCV to automate the process, I wasn’t going to open an image editor for each of these images, What happens, is that, usually video is getting gray frames, in part of image or in total image, If you want to see the effect of your alpha channel, save your image in PNG format (because that supports alpha channel) and display in a different viewer, 5 Result with alpha=0, Use cv2, cvtColor method cv2, There are more than 150 color-space conversion methods available in OpenCV, olbt rknxocl kraf glx ciy kblof hodcw gqubux upym klbym