I have an Alpha8 Texture2D png file, which the size is 2340x720, and an original picture in 1560x720. In the image it has three parts, two 780x360 at the top left and bottom left, with 1560x720 at the right. As the depth of the image is 8bit, I considered it as three channels merged into a single picture, so I tried to split original picture into hsv with OpenCV, but it doesn’t seem that it could match the Alpha8 image. My original plan is to merge three channels of the Alpha8 image into a 24bit full color image, but I have no idea how to do it as I can’t confirm whether the three parts of Alpha8 image is hsv or not.
Additionally, the right side of the Alpha8 image has clear outline of the original picture and the top left and bottom left part seem like negative film.
Is there a way to colorize the Alpha8 image?