Python CV2 choose alpha of mask to make it transparent

Question

I want to make the mask which I append to an image transparent in some way. I have the following:

img_background[mask]=[0,5,255]

I want to have the mask region ([0,5,255]) transparent.

hi, interesting, perhaps this might be of interest https://stackoverflow.com/questions/54082300/how-to-create-a-transparent-mask-in-opencv-python — IronMan, Feb 09 '21 at 00:24

score 1 · Answer 1 · answered Mar 10 '21 at 17:57

You can add the two images using cv2.addWeighted like this:

import cv2

background = cv2.imread('field.jpg')
overlay = cv2.imread('dice.png')

added_image = cv2.addWeighted(background,0.4,overlay,0.1,0)

cv2.imwrite('combined.png', added_image)

Credits: Using openCV to overlay transparent image onto another image

Python CV2 choose alpha of mask to make it transparent

1 Answers1