INNER CODE UNIT · Python
transformed_color
NVlabs/instant-ngp · scripts/flip/__init__.py:48
transformed_color = np.where(input_color > limit, 1.055 * (input_color ** (1.0 / 2.4)) - 0.055, 12.92 * input_color)
elif fromSpace2toSpace == "linrgb2xyz" or fromSpace2toSpace == "xyz2linrgb":
# Source: https://www.image-engineering.de/library/technotes/958-how-to-convert-between-srgb-and-ciexyz
# Assumes D65 standard illuminant
a11 = 10135552 / 24577794
a12 = 8788810 / 24577794
a13 = 4435075 / 24577794
a21 = 2613072 / 12288897
a22 = 8788810 / 12288897
a23 = 887015 / 12288897
a31 = 1425312 / 73733382
a32 = 8788810 / 73733382
a33 = 70074185 / 73733382
A = np.array([[a11, a12, a13],
[a21, a22, a23],
[a31, a32, a33]])