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Improve Code Quality and Optimize (#763)

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Signed-off-by: tech4GT <varun.gupta1798@gmail.com>
This commit is contained in:
Varun Gupta
2019-02-16 11:05:32 +05:30
committed by GitHub
parent f42aa2fd67
commit 75dc23fb55
26 changed files with 1332 additions and 921 deletions
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26
src/modules/Contrast/Contrast.js
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@@ -1,41 +1,41 @@
var _ = require('lodash');
module.exports = exports = function(pixels , contrast){
let oldpix = _.cloneDeep(pixels);
module.exports = exports = function(pixels, contrast) {
let oldpix = _.cloneDeep(pixels);
contrast = Number(contrast)
if (contrast < -100) contrast = -100;
if (contrast < -100) contrast = -100;
if (contrast > 100) contrast = 100;
contrast = (100.0 + contrast) / 100.0;
contrast *= contrast;
for (let i = 0; i < oldpix.shape[0]; i++) {
for (let j = 0; j < oldpix.shape[1]; j++) {
var r = oldpix.get(i,j,0)/255.0;
r -= 0.5;
for (let i = 0; i < pixels.shape[0]; i++) {
for (let j = 0; j < pixels.shape[1]; j++) {
var r = oldpix.get(i, j, 0) / 255.0;
r -= 0.5;
r *= contrast;
r += 0.5;
r += 0.5;
r *= 255;
if (r < 0) r = 0;
if (r > 255) r = 255;
var g = oldpix.get(i,j,1)/255.0;
var g = oldpix.get(i, j, 1) / 255.0;
g -= 0.5;
g *= contrast;
g += 0.5;
g *= 255;
if (g < 0) g = 0;
if (g > 255) g = 255;
var b = oldpix.get(i,j,2)/255.0;
var b = oldpix.get(i, j, 2) / 255.0;
b -= 0.5;
b *= contrast;
b += 0.5;
b *= 255;
if (b < 0) b = 0;
if (b > 255) b = 255;
pixels.set(i, j, 0, r);
pixels.set(i, j, 1, g);