/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict" ;
const {
accessibility: {
SIMULATION_TYPE: {
ACHROMATOPSIA,
DEUTERANOPIA,
PROTANOPIA,
TRITANOPIA,
CONTRAST_LOSS,
},
},
} = require(
"resource://devtools/shared/constants.js");
/**
* Constants used in accessibility actors.
*/
// Color blindness matrix values taken from Machado et al. (2009), https://doi.org/10.1109/TVCG.2009.113:
// https://www.inf.ufrgs.br/~oliveira/pubs_files/CVD_Simulation/CVD_Simulation.html
// Contrast loss matrix values are for 50% contrast (see https://docs.rainmeter.net/tips/colormatrix-guide/,
// and https://stackoverflow.com/questions/23865511/contrast-with-color-matrix). The matrices are flattened
// 4x5 matrices, needed for docShell setColorMatrix method. i.e. A 4x5 matrix of the form:
// 1 2 3 4 5
// 6 7 8 9 10
// 11 12 13 14 15
// 16 17 18 19 20
// will be need to be set in docShell as:
// [1, 6, 11, 16, 2, 7, 12, 17, 3, 8, 13, 18, 4, 9, 14, 19, 5, 10, 15, 20]
const COLOR_TRANSFORMATION_MATRICES = {
NONE: [
1 ,
0 ,
0 ,
0 ,
0 ,
1 ,
0 ,
0 ,
0 ,
0 ,
1 ,
0 ,
0 ,
0 ,
0 ,
1 ,
0 ,
0 ,
0 ,
0 ],
[ACHROMATOPSIA]: [
0 .
299 ,
0 .
299 ,
0 .
299 ,
0 ,
0 .
587 ,
0 .
587 ,
0 .
587 ,
0 ,
0 .
114 ,
0 .
114 ,
0 .
114 ,
0 ,
0 ,
0 ,
0 ,
1 ,
0 ,
0 ,
0 ,
0 ,
],
[PROTANOPIA]: [
0 .
152286 ,
0 .
114503 , -
0 .
003882 ,
0 ,
1 .
052583 ,
0 .
786281 , -
0 .
048116 ,
0 ,
-
0 .
204868 ,
0 .
099216 ,
1 .
051998 ,
0 ,
0 ,
0 ,
0 ,
1 ,
0 ,
0 ,
0 ,
0 ,
],
[DEUTERANOPIA]: [
0 .
367322 ,
0 .
280085 , -
0 .
01182 ,
0 ,
0 .
860646 ,
0 .
672501 ,
0 .
04294 ,
0 , -
0 .
227968 ,
0 .
047413 ,
0 .
968881 ,
0 ,
0 ,
0 ,
0 ,
1 ,
0 ,
0 ,
0 ,
0 ,
],
[TRITANOPIA]: [
1 .
255528 , -
0 .
078411 ,
0 .
004733 ,
0 , -
0 .
076749 ,
0 .
930809 ,
0 .
691367 ,
0 ,
-
0 .
178779 ,
0 .
147602 ,
0 .
3039 ,
0 ,
0 ,
0 ,
0 ,
1 ,
0 ,
0 ,
0 ,
0 ,
],
[CONTRAST_LOSS]: [
0 .
5 ,
0 ,
0 ,
0 ,
0 ,
0 .
5 ,
0 ,
0 ,
0 ,
0 ,
0 .
5 ,
0 ,
0 ,
0 ,
0 ,
0 .
5 ,
0 .
25 ,
0 .
25 ,
0 .
25 ,
0 ,
],
};
exports.simulation = {
COLOR_TRANSFORMATION_MATRICES,
};
Messung V0.5 in Prozent C=94 H=96 G=94
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-06-05)
¤
*© Formatika GbR, Deutschland