6 examples of 'how to use rgb in python' in Python

60
def tune_rgb(rgb, contrast=0, brightness=0):
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    if contrast:
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        rgb = (rgb - 127.5) * (contrast + 1) + 127.5
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    if brightness:
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        rgb += brightness * 255.0
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    return rgb

180
@staticmethod
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def _int_to_rgb(color):
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    return (color >> 16) & 0xFF, (color >> 8) & 0xFF, color & 0xFF

17
@filter_method(BaseFilter.Number, BaseFilter.Number, BaseFilter.Number)
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def rgb(self, r, g, b):
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    mode, data = self.engine.image_data_as_rgb()
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    imgdata = _rgb.apply(mode, r, g, b, data)
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    self.engine.set_image_data(imgdata)

111
def test_color_from_rgb_bytes():
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    verify_color(Color.from_rgb_bytes(1, 1, 1).rgb_bytes, (1, 1, 1))
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    verify_color(Color.from_rgb_bytes(255, 255, 255), (1.0, 1.0, 1.0))
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    verify_color(Color.from_rgb_bytes(r=255, g=255, b=255), (1.0, 1.0, 1.0))

69
def color_rgb(r, g, b):
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    return int(((r & 255) << 16) |
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               ((g & 255) << 8) |
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               (b & 255))

13
def test_rgb(self):
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    test = self.color.rgb
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    for r, g, b, v in [
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        (255, 255, 255, '#ffffff'),
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        (100, 100, 100, '#646464'),
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        (0, 0, 0, '#000000'),
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        ('70%', '70%', '70%', '#b2b2b2'),
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        ('1%', '1%', '1%', '#020202'),
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        ('100%', '100%', '100%', '#ffffff'),
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        ('0%', '0%', '0%', '#000000'),
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    ]:
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        self.assertEqual(test(r, g, b), v)
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    for r, g, b, a, v in [
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        (255, 255, 255, 0.5, '#ffffff'),
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        (100, 100, 100, 0.9, '#646464'),
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        (0, 0, 0, 100, '#000000'),
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    ]:
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        self.assertEqual(test(r, g, b, a), v)
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    for args in [
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        (255, 255, 256),
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        (0, -1, 0),
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        ('100%', '100%', 200),
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        ('100%', '100%', '200%'),
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    ]:
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        self.assertRaises(ValueError, test, args)