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IngIeoAndSpare/convertPng.py

Created April 2, 2020 07:08
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background add alpha layer and convert png image
Raw
convertPng.py
import cv2
def transBg(self, img):
tmp = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
_,alpha = cv2.threshold(tmp,0,255,cv2.THRESH_BINARY)
b, g, r = cv2.split(img)
rgba = [b,g,r, alpha]
dst = cv2.merge(rgba,4)
return dst
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