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御坂スバル
2024-09-10 14:44:04 +08:00
parent b60dda21ea
commit 6e7c39ed51
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test/2024,9,10/set_alpha.py
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@@ -7,7 +7,7 @@ img_rgba=cv.cvtColor(img,cv.COLOR_BGR2BGRA)
# split alpha channel # split alpha channel
blue,green,red,alpha = cv.split(img_rgba) blue,green,red,alpha = cv.split(img_rgba)
#set alpha channel #set alpha channel
alpha[int(alpha.shape[0]/2):alpha.shape[0],int(alpha.shape[1]/2):alpha.shape[1]]=0 alpha[int(alpha.shape[0]/2):alpha.shape[0],int(alpha.shape[1]/2):alpha.shape[1]]=128
# remix alpha to img_rgba # remix alpha to img_rgba
img_rgba=cv.merge((blue,green,red,alpha)) img_rgba=cv.merge((blue,green,red,alpha))
# show # show