I hereby claim:
- I am kelsolaar on github.
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- I have a public key whose fingerprint is 2331 CA52 9DDA 0A42 6B76 37E1 502D 5DCA A231 FF22
To claim this, I am signing this object:
Thomas Mansencal KelSolaar
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| # https://github.com/colour-science/colour/blob/develop/colour/models/derivation.py#L158 | |
| import colour | |
| sRGB = colour.RGB_COLOURSPACES['sRGB'] | |
| colour.RGB_luminance_equation(sRGB.primaries, sRGB.whitepoint) | |
| # u'Y = 0.212636821677(R) + 0.715182981841(G) + 0.0721801964814(B)' |
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KelSolaar
/ colorchecker_2005_-_conversion.ipynb
Created
December 15, 2015 22:42
ColorChecker 2005 - Conversion
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| Version 1 | |
| From 0 1 | |
| Length 1024 | |
| Components 1 | |
| { | |
| -0.358447488584475 | |
| -0.015901280236606 | |
| 0.041176345334171 | |
| 0.074564615923278 | |
| 0.098253970904947 |
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| import numpy as np | |
| import colour | |
| xyY = np.asarray(colour.MUNSELL_COLOURS_REAL[2000][1]) | |
| # Munsell Renotation System uses C illuminant. | |
| # Luminance is in range [0-100], so we need to scale it | |
| # back to [0-1]. | |
| XYZ = colour.xyY_to_XYZ(xyY) | |
| RGB = colour.XYZ_to_sRGB( |
KelSolaar
/ secondary_chromaticities_computation.py
Created
March 4, 2016 08:23
Secondary Chromaticity Coordinates Computation
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| P = np.array( | |
| [[0.6650, 0.3220], | |
| [0.2950, 0.6070], | |
| [0.1500, 0.0600]]) | |
| W = np.array([0.3127, 0.3290]) | |
| NPM = colour.normalised_primary_matrix(P, W) | |
| NPM_i = np.linalg.inv(NPM) |
KelSolaar
/ raytracing.py
Created
June 7, 2016 07:30
— forked from rossant/raytracing.py
Very simple ray tracing engine in (almost) pure Python. Depends on NumPy and Matplotlib. Diffuse and specular lighting, simple shadows, reflections, no refraction. Purely sequential algorithm, slow execution.
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| import numpy as np | |
| import matplotlib.pyplot as plt | |
| w = 400 | |
| h = 300 | |
| def normalize(x): | |
| x /= np.linalg.norm(x) | |
| return x |