From de87ccc64276871b1d0749d2b8a2386915cc79ab Mon Sep 17 00:00:00 2001 From: GaugeAndGravity Date: Thu, 9 Nov 2023 22:23:14 -0500 Subject: [PATCH] create function dealing with colorspace --- colorspace.py | 500 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 500 insertions(+) create mode 100644 colorspace.py diff --git a/colorspace.py b/colorspace.py new file mode 100644 index 0000000..88dd64b --- /dev/null +++ b/colorspace.py @@ -0,0 +1,500 @@ +import numpy as np + +XYZ2RGB_matrix = np.array([[0.49000,0.17697, 0],[0.31000, 0.81240, 0.01000],[0.20000, 0.01063, 0.99000]]) +RGB2XYZ_matrix = np.linalg.inv(XYZ2RGB_matrix) + +_CIEXYZ_1931_table = [ + [ 360, 0.000129900000, 0.000003917000, 0.000606100000 ], + [ 361, 0.000145847000, 0.000004393581, 0.000680879200 ], + [ 362, 0.000163802100, 0.000004929604, 0.000765145600 ], + [ 363, 0.000184003700, 0.000005532136, 0.000860012400 ], + [ 364, 0.000206690200, 0.000006208245, 0.000966592800 ], + [ 365, 0.000232100000, 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np.interp(wavelength, data_wavelength, data_x, 0, 0) + Y = np.interp(wavelength, data_wavelength, data_y, 0, 0) + Z = np.interp(wavelength, data_wavelength, data_z, 0, 0) + return intensity*np.array([X,Y,Z]) + +def spectral2XYZ(spectral): + X = np.dot(spectral, data_x) + Y = np.dot(spectral, data_y) + Z = np.dot(spectral, data_z)