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| import { isNodePattern } from '@jimp/utils';
|
| /**
| * Inverts the image
| * @param {function(Error, Jimp)} cb (optional) a callback for when complete
| * @returns {Jimp} this for chaining of methods
| */
| export default () => ({
| invert(cb) {
| this.scanQuiet(0, 0, this.bitmap.width, this.bitmap.height, function(
| x,
| y,
| idx
| ) {
| this.bitmap.data[idx] = 255 - this.bitmap.data[idx];
| this.bitmap.data[idx + 1] = 255 - this.bitmap.data[idx + 1];
| this.bitmap.data[idx + 2] = 255 - this.bitmap.data[idx + 2];
| });
|
| if (isNodePattern(cb)) {
| cb.call(this, null, this);
| }
|
| return this;
| }
| });
|
|
