#!/usr/bin/env python # vim:expandtab:ts=2 sw=2: # # show the 8bit values of 16 color palette with gamma correction # Used to build Thomson palettes # # (c) 2018 Thomas BERNARD import sys def palette_values(n, gamma): return [int(round(255.0*pow(i/(n-1.0), 1.0/gamma))) for i in range (0,n)] def array_to_c(a): return '{ ' + ', '.join(a) + '};' for i in range (0,22): gamma = 1.0 + i / 10.0 p = palette_values(16, gamma) print gamma, array_to_c(map(str, p)) print ' ', array_to_c(map(hex, p))