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fix conversion from Indexed PNG-image

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relikd
2021-10-11 18:57:17 +02:00
parent 01b94459cb
commit 2515060807
1 changed files with 6 additions and 14 deletions
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20
icnsutil/ArgbImage.py
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@@ -112,26 +112,18 @@ class ArgbImage:
def _load_png(self, fname: str) -> None:
if not PIL_ENABLED:
raise ImportError('Install Pillow to support PNG conversion.')
img = Image.open(fname, mode='r')
img = Image.open(fname, mode='r').convert('RGBA')
self.size = img.size
self.channels = 4
self.a = []
self.r = []
self.g = []
self.b = []
w, h = img.size
for y in range(h):
for x in range(w):
px = img.getpixel((x, y))
if type(px) == int:
px = (px, px, px) # convert mono to rgb
if len(px) == 3:
px = px + (0xFF,) # convert rgb to rgba
r, g, b, a = px
self.a.append(a)
self.r.append(r)
self.g.append(g)
self.b.append(b)
for r, g, b, a in img.getdata():
self.a.append(a)
self.r.append(r)
self.g.append(g)
self.b.append(b)
def write_png(self, fname: str) -> None:
if not PIL_ENABLED: