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29 lines
1.4 KiB
Python
29 lines
1.4 KiB
Python
# RGB - RGB (Red, Green, Blue) describes what kind of light needs to be emitted to produce a given color. Light is added together to create form from darkness. RGB stores individual values for red, green and blue. RGB is not a color space, it is a color model. There are many different RGB color spaces derived from this color model, some of which appear below.
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HSV - (hue, saturation, value), also known as HSB (hue, saturation, brightness), is often used by artists because it is often more natural to think about a color in terms of hue and saturation than in terms of additive or subtractive color components. HSV is a transformation of an RGB colorspace, and its components and colorimetry are relative to the RGB colorspace from which it was derived.
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def rgb_to_hsv(r, g, b):
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r, g, b = r/255.0, g/255.0, b/255.0
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mx = max(r, g, b)
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mn = min(r, g, b)
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df = mx-mn
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if mx == mn:
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h = 0
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elif mx == r:
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h = (60 * ((g-b)/df) + 360) % 360
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elif mx == g:
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h = (60 * ((b-r)/df) + 120) % 360
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elif mx == b:
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h = (60 * ((r-g)/df) + 240) % 360
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if mx == 0:
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s = 0
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else:
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s = (df/mx)*100
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v = mx*100
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return h, s, v
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print(rgb_to_hsv(255, 255, 255))
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print(rgb_to_hsv(0, 215, 0))
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Expected Output :
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(0, 0.0, 100.0)
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(120.0, 100.0, 84.31372549019608) |