I need python to change the color of one individual pixel on a picture, how do I go about that?
Once your phone finishes rebooting, you will find the new colors in Settings –> Display –> Styles & Wallpaper. Select "Custom 1" and choose a font and icon style. When you get to colors, you will see the new set of colors you flashed.
To build upon the example given in Gabi Purcaru's link, here's something cobbled together from the PIL docs.
The simplest way to reliably modify a single pixel using PIL would be:
x, y = 10, 25 shade = 20 from PIL import Image im = Image.open("foo.png") pix = im.load() if im.mode == '1': value = int(shade >= 127) # Black-and-white (1-bit) elif im.mode == 'L': value = shade # Grayscale (Luminosity) elif im.mode == 'RGB': value = (shade, shade, shade) elif im.mode == 'RGBA': value = (shade, shade, shade, 255) elif im.mode == 'P': raise NotImplementedError("TODO: Look up nearest color in palette") else: raise ValueError("Unexpected mode for PNG image: %s" % im.mode) pix[x, y] = value im.save("foo_new.png")
That will work in PIL 1.1.6 and up. If you have the bad luck of having to support an older version, you can sacrifice performance and replace pix[x, y] = value
with im.putpixel((x, y), value)
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