blob: 529e2cbdda57a884f49833a2d6c277067aedd8bd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
#!/usr/bin/env python3
"""Convert to grey"""
import inkex
class Grayscale(inkex.ColorExtension):
"""Make all colours grayscale"""
def modify_color(self, name, color):
# ITU-R Recommendation BT.709 (NTSC and PAL)
# l = 0.2125 * r + 0.7154 * g + 0.0721 * b
lum = 0.299 * color.red + 0.587 * color.green + 0.114 * color.blue
return inkex.Color((int(round(lum)), int(round(lum)), int(round(lum))))
if __name__ == "__main__":
Grayscale().run()
|
