image-q - npm Package Compare versions

Comparing version 3.0.5 to 3.0.6

dist/esm/src/constants/bt709.js

@@ -19,3 +19,2 @@ /**
 })(Y || (Y = {}));
-// tslint:disable-next-line:naming-convention
 export var x;
@@ -28,3 +27,2 @@ (function (x) {
 })(x || (x = {}));
-// tslint:disable-next-line:naming-convention
 export var y;
@@ -31,0 +29,0 @@ (function (y) {

dist/esm/src/conversion/lab2rgb.js

@@ -10,3 +10,2 @@ /**
 import { xyz2rgb } from './xyz2rgb';
-// tslint:disable-next-line:naming-convention
 export function lab2rgb(L, a, b) {
@@ -13,0 +12,0 @@ const xyz = lab2xyz(L, a, b);

dist/esm/src/conversion/lab2xyz.js

@@ -14,3 +14,2 @@ /**
 }
-// tslint:disable-next-line:naming-convention
 export function lab2xyz(L, a, b) {
@@ -17,0 +16,0 @@ const y = (L + 16) / 116;

dist/esm/src/distance/cie94.js

@@ -16,11 +16,2 @@ /**
 export class AbstractCIE94 extends AbstractDistanceCalculator {
-    /**
-     * Weight in distance: 0.25
-     * Max DeltaE: 100
-     * Max DeltaA: 255
-     */
-    _kA;
-    _Kl; // tslint:disable-line:naming-convention
-    _K1; // tslint:disable-line:naming-convention
-    _K2; // tslint:disable-line:naming-convention
     calculateRaw(r1, g1, b1, a1, r2, g2, b2, a2) {
@@ -27,0 +18,0 @@ const lab1 = rgb2lab(inRange0to255(r1 * this._whitePoint.r), inRange0to255(g1 * this._whitePoint.g), inRange0to255(b1 * this._whitePoint.b));

dist/esm/src/distance/ciede2000.js

@@ -11,4 +11,2 @@ /**
 import { degrees2radians, inRange0to255 } from '../utils/arithmetic';
-// tslint:disable:variable-name
-// tslint:disable:naming-convention
 /**
@@ -25,3 +23,3 @@ * CIEDE2000 algorithm - Adapted from Sharma et al's MATLAB implementation at
     static _kA = (0.25 * 100) / 255;
-    static _pow25to7 = 25 ** 7; // 1Math.pow(25, 7);
+    static _pow25to7 = 25 ** 7;
     static _deg360InRad = degrees2radians(360);
@@ -28,0 +26,0 @@ static _deg180InRad = degrees2radians(180);

dist/esm/src/distance/euclidean.js

@@ -14,6 +14,2 @@ /**
 export class AbstractEuclidean extends AbstractDistanceCalculator {
-    _kR;
-    _kG;
-    _kB;
-    _kA;
     calculateRaw(r1, g1, b1, a1, r2, g2, b2, a2) {
@@ -20,0 +16,0 @@ const dR = r2 - r1;

dist/esm/src/distance/manhattan.js

@@ -14,6 +14,2 @@ /**
 export class AbstractManhattan extends AbstractDistanceCalculator {
-    _kR;
-    _kG;
-    _kB;
-    _kA;
     calculateRaw(r1, g1, b1, a1, r2, g2, b2, a2) {
@@ -20,0 +16,0 @@ let dR = r2 - r1;

dist/esm/src/image/spaceFillingCurves/hilbertCurve.js

@@ -84,3 +84,2 @@ import { ProgressTracker } from '../../utils/progressTracker';
     }
-    // eslint-disable-next-line default-case
     switch (direction) {
@@ -87,0 +86,0 @@ case Direction.LEFT:

dist/esm/src/palette/rgbquant/colorHistogram.js

@@ -38,6 +38,5 @@ /*
         this._hueStats = new HueStatistics(ColorHistogram._hueGroups, this._minHueCols);
-        this._histogram = Object.create(null); // tslint:disable-line:no-null-keyword
+        this._histogram = Object.create(null);
     }
     sample(pointContainer) {
-        // eslint-disable-next-line default-case
         switch (this._method) {
@@ -44,0 +43,0 @@ case 1:

dist/esm/src/palette/rgbquant/rgbquant.js

@@ -84,3 +84,3 @@ /*
         const colorArray = palette.getPointContainer().getPointArray();
-        const usageArray = new Array(idxi32.length); // tslint:disable-line:prefer-array-literal
+        const usageArray = new Array(idxi32.length);
         for (let i = 0; i < idxi32.length; i++) {
@@ -87,0 +87,0 @@ colorArray.push(Point.createByUint32(idxi32[i]));

dist/esm/src/palette/wu/wuQuant.js

@@ -569,3 +569,2 @@ /**
         // cuts in a certain direction
-        // eslint-disable-next-line default-case
         switch (direction) {
@@ -572,0 +571,0 @@ case WuQuant._red:

dist/esm/src/quality/ssim.js

 import { Y } from '../constants/bt709';
 // based on https://github.com/rhys-e/structural-similarity
 // http://en.wikipedia.org/wiki/Structural_similarity
-const K1 = 0.01; // tslint:disable-line:naming-convention
-const K2 = 0.03; // tslint:disable-line:naming-convention
+const K1 = 0.01;
+const K2 = 0.03;
 export function ssim(image1, image2) {
@@ -12,3 +12,3 @@ if (image1.getHeight() !== image2.getHeight() ||
     const bitsPerComponent = 8;
-    const L = (1 << bitsPerComponent) - 1; // tslint:disable-line:naming-convention
+    const L = (1 << bitsPerComponent) - 1;
     const c1 = (K1 * L) ** 2;
@@ -15,0 +15,0 @@ const c2 = (K2 * L) ** 2;

dist/esm/src/utils/arithmetic.js

@@ -46,3 +46,3 @@ export function degrees2radians(n) {
     if (type === 'number' || type === 'string') {
-        const ord = Object.create(null); // tslint:disable-line:no-null-keyword
+        const ord = Object.create(null);
         for (let i = 0, l = arrayToSort.length; i < l; i++) {
@@ -49,0 +49,0 @@ const val = arrayToSort[i];

dist/esm/src/utils/palette.js

@@ -82,3 +82,3 @@ /**
     _getNearestIndex(colorDistanceCalculator, point) {
-        let idx = this._nearestPointFromCache('' + point.uint32); // eslint-disable-line prefer-template
+        let idx = this._nearestPointFromCache('' + point.uint32);
         if (idx >= 0)
@@ -85,0 +85,0 @@ return idx;

dist/esm/src/utils/pointContainer.js

@@ -60,8 +60,6 @@ /**
         const height = img.naturalHeight;
-        // eslint-disable-next-line no-undef
         const canvas = document.createElement('canvas');
         canvas.width = width;
         canvas.height = height;
-        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-        const ctx = canvas.getContext('2d'); // tslint:disable-line:no-non-null-assertion
+        const ctx = canvas.getContext('2d');
         ctx.drawImage(img, 0, 0, width, height, 0, 0, width, height);
@@ -73,4 +71,3 @@ return PointContainer.fromHTMLCanvasElement(canvas);
         const height = canvas.height;
-        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-        const ctx = canvas.getContext('2d'); // tslint:disable-line:no-non-null-assertion
+        const ctx = canvas.getContext('2d');
         const imgData = ctx.getImageData(0, 0, width, height);
@@ -77,0 +74,0 @@ return PointContainer.fromImageData(imgData);

package.json

 {
   "name": "image-q",
-  "version": "3.0.5",
+  "version": "3.0.6",
   "description": "Image Quantization Library in **TypeScript** *(MIT Licensed)*",
@@ -58,3 +58,3 @@ "license": "MIT",
   },
-  "readme": "## image-q\n\nComplete Image Quantization Library in **TypeScript** _(MIT License)_\n\n[![Demo (outdated, use /packages/demo for up-to-date demo)](https://img.shields.io/badge/demo-online-brightgreen.svg)](https://ibezkrovnyi.github.io/image-quantization-demo/)\n[![GitHub](https://img.shields.io/badge/github-.com-brightgreen.svg)](https://github.com/ibezkrovnyi/image-quantization/tree/main/packages/image-q)\n[![NPM](https://badge.fury.io/js/image-q.svg)](https://www.npmjs.com/package/image-q)\n[![API)](https://img.shields.io/badge/API-Available-blue.svg)](http://ibezkrovnyi.github.io/image-quantization/)\n[![NPM License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)\n\n![quantization](packages/image-q/quantization.png)\n\n## Table of Contents\n\n- [<span style=\"color: red\">API Documentation and Usage</span>](http://ibezkrovnyi.github.io/image-quantization/)\n- [Introduction](#introduction)\n- [Features](#features)\n- [Todo](#todo)\n- [Breaking changes](#breaking-changes)\n- [Changelog](#changelog)\n- [Credits](#credits)\n- [References](#references)\n- [License](#license)\n\n## Introduction\n\nImage Color Number Reduction with alpha support using RGBQuant/NeuQuant/Xiaolin Wu's algorithms and Euclidean/Manhattan/CIEDE2000 color distance formulas in TypeScript\n\n## Features\n\n1. Platforms supported\n\n   - Browser (Chrome 7.0+, FireFox 4.0+, IE 10+, Opera 11.6+, Safari 5.1+)\n   - Node.js 6.0+\n\n2. API\n   - Basic API: sync and promise-based async\n   - Advanced API: sync and generator-based\n3. Builds\n\n   - `dist/cjs/image-q.js` - CommonJS\n   - `dist/esm/image-q.js` - ESM (ESNext)\n   - `dist/cjs/image-q.js` - UMD\n\n4. Import\n   - `HTMLImageElement`\n   - `HTMLCanvasElement`\n   - `NodeCanvas`\n   - `ImageData`\n   - `Array`\n   - `CanvasPixelArray`\n   - `Uint8Array`\n   - `Uint32Array`\n5. Color Distance\n\n   - `Euclidean` - 1/1/1/1 coefficients (originally used in Xiaolin Wu's Quantizer **WuQuant**)\n   - `EuclideanBT709NoAlpha` - BT.709 sRGB coefficients (originally used in **RGBQuant**)\n   - `EuclideanBT709` BT.709 sRGB coefficients + alpha support\n   - `Manhattan` - 1/1/1/1 coefficients (originally used in **NeuQuant**)\n   - `ManhattanBT709` - BT.709 sRGB coefficients\n   - `ManhattanNommyde` - see https://github.com/igor-bezkrovny/image-quantization/issues/4#issuecomment-234527620\n   - `CIEDE2000` - CIEDE2000 (very slow)\n   - `CIE94Textiles` - CIE94 implementation for textiles\n   - `CIE94GraphicArts` - CIE94 implementation for graphic arts\n   - `CMetric` - see http://www.compuphase.com/cmetric.htm\n   - `PNGQuant` - used in pngQuant tool\n\n6. Palette Quantizers\n   - `NeuQuant` (original code ported, integer calculations)\n   - `NeuQuantFloat` (floating-point calculations)\n   - `RGBQuant`\n   - `WuQuant`\n7. Image Quantizers\n\n   - `NearestColor`\n   - `ErrorDiffusionArray` - two modes of error propagation are supported: `xnview` and `gimp`\n     1. `FloydSteinberg`\n     2. `FalseFloydSteinberg`\n     3. `Stucki`\n     4. `Atkinson`\n     5. `Jarvis`\n     6. `Burkes`\n     7. `Sierra`\n     8. `TwoSierra`\n     9. `SierraLite`\n   - `ErrorDiffusionRiemersma` - Hilbert space-filling curve is used\n\n8. Output\n   - `Uint32Array`\n   - `Uint8Array`\n\n## Include `image-q` library into your project\n\n##### ES6 module\n\n```javascript\n// will import ESM (ESNext) or UMD version depending on your bundler/node\nimport * as iq from 'image-q';\n```\n\n##### CommonJS\n\n```javascript\nvar iq = require('image-q');\n```\n\n##### As a global variable (Browser)\n\n```html\n<script\n  src=\"<path-to image-q/dist/umd/image-q.js>\"\n  type=\"text/javascript\"\n  charset=\"utf-8\"\n></script>\n```\n\n## How to use\n\nPlease refer to [API Documentation and Usage](http://ibezkrovnyi.github.io/image-quantization/)\n\n## Breaking changes\n\n#### 2.1.1\n\n    + PaletteQuantizer#quantize => PaletteQuantizer#quantizeSync\n    + ImageQuantizer#quantize => ImageQuantizer#quantizeSync\n\n#### 2.0.1 - 2.0.4 (2018-02-22)\n\n    + EuclideanRgbQuantWOAlpha => EuclideanBT709NoAlpha\n    + EuclideanRgbQuantWithAlpha => EuclideanBT709\n    \t+ ManhattanSRGB => ManhattanBT709\n    \t+ IImageDitherer => AbstractImageQuantizer\n    \t+ IPaletteQuantizer => AbstractPaletteQuantizer\n    \t+ PointContainer.fromNodeCanvas => PointContainer.fromHTMLCanvasElement\n    \t+ PointContainer.fromArray => PointContainer.fromUint8Array\n    + PointContainer.fromBuffer (Node.js, new)\n    \t+ CMETRIC => CMetric\n    \t+ PNGQUANT => PNGQuant\n    \t+ SSIM Class => ssim function\n\n## TODO\n\n1. ~~notification about progress~~\n2. ~~riemersma dithering~~\n3. ordered dithering <-- is there anyone who needs it?\n4. readme update, more examples\n5. demo update (latest image-q npm version should be used in demo)\n\n## Changelog\n\n##### 2.1.1\n\n    + Basic (Simple) API implemented\n    + see breaking changes\n\n##### 2.0.5 (2018-02-23)\n\n    + @types/node moved to 'dependencies'\n\n##### 2.0.4 (2018-02-23)\n\n    + documentation added\n    + some refactorings/renames, see breaking changes\n\n##### 2.0.3 (2018-02-22)\n\n    + circular dependency removed\n\n##### 2.0.2 (2018-02-22)\n\n    + readme updated\n\n##### 2.0.1 (2018-02-22)\n\n    + progress tracking api (using es6 generators) added\n    + strinct lint rules (+code cleanup/renames)\n    + rollup (3 different versions - umd, cjs, esm + source maps + d.ts)\n    + latest TypeScript\n    + jest\n    + snapshot tests\n    + coverage (+coveralls)\n    + greenkeeper\n\n##### 1.1.1 (2016-08-28)\n\n    + CIEDE2000 - incorrect calculation fixed\n    + CIEDE2000 - alpha channel now has only 25% impact on color distance instead of 66%\n    + CIE94 - added 2 types (textiles and graphics art) according to spec\n    + CIE94 - alpha support added\n    + rgb2xyz, lab2xyz, xyz2rgb, xyz2lab - gamma correction\n    + lab2xyz, xyz2lab - refY should be 100 (1.00000) instead of 10 (0.10000)\n    + manhattan with new (Nommyde) coefficients added\n    + mocha tests added\n    + webpack integration\n    + image-q is now UMD module\n    + travis-ci integration\n    + typescript 2.0\n    + indentation with 4 spaces\n\n##### 0.1.4 (2015-06-24)\n\n    + Refactoring\n    + Riemersma dithering added (Hilbert Curve)\n    + Readme.md updated\n    + build.cmd updated\n\n##### 0.1.3 (2015-06-16)\n\n    + NeuQuant is fixed (again) according to original Anthony Dekker source code (all values should be integer)\n    + Error Diffusion Dithering is now calculates error like XNVIEW\n    + Refactoring\n\n##### 0.1.2 (2015-06-16)\n\n    + Documentation generation fixed\n    + File name case problem fixed\n\n##### 0.1.1 (2015-06-16)\n\n    + Auto-generated documentation added\n    + Refactoring\n\n##### 0.1.0 (2015-06-16)\n\n    + Code cleanup, removed unnecessary files\n\n##### 0.0.5 (2015-06-16)\n\n    + PNGQuant color distance added, need to check its quality\n    + CIEDE2000 and CIE94 fixed for use in NeuQuant\n    + NeuQuant is fixed according to original Anthony Dekker source code (all values should be integer)\n    + Code refactoring and cleanup\n    * We have some slowdown because of red/green/blue/alpha normalization according to white point per each calculateRaw/calculateNormalized call\n\n##### 0.0.4 (2015-06-15)\n\n    + CIEDE2000 color distance equation optimized (original CIEDE2000 equation is available as class `CIEDE2000_Original`)\n\n##### 0.0.3b (2015-06-11)\n\n    + CMetric color distance fixed\n\n##### 0.0.3a (2015-06-11)\n\n    + Cleanup\n    + Draft of CMetric color distance added\n\n##### 0.0.2 (2015-06-10)\n\n    + rgb2xyz & xyz2lab fixed. CIEDE2000 works much better now.\n    + CIE94 distance formula added. More investigation is needed.\n\n##### 0.0.1\n\n    + Initial\n\n## Credits\n\nThanks to Leon Sorokin for information share and his original RGBQuant!\n\n## References\n\n- Palette Quantization Algorithms\n\n  1.  [RGBQuant (Leon Sorokin)](https://github.com/leeoniya/RgbQuant.js) `JavaScript`\n  2.  [NeuQuant (Johan Nordberg)](https://github.com/jnordberg/gif.js/blob/master/src/TypedNeuQuant.js) `TypeScript`\n  3.  [NeuQuant (Tim Oxley)](https://github.com/timoxley/neuquant) `JavaScript`\n  4.  [NeuQuant (Devon Govett)](https://github.com/devongovett/neuquant) `JavaScript`\n  5.  [NeuQuant32 (Stuart Coyle)](https://github.com/stuart/pngnq/blob/master/src/neuquant32.c) `C`\n  6.  [Xiaolin Wu (Xiaolin Wu)](http://www.ece.mcmaster.ca/~xwu/cq.c) `C`\n  7.  [Xiaolin Wu (Smart-K8)](http://www.codeproject.com/Articles/66341/A-Simple-Yet-Quite-Powerful-Palette-Quantizer-in-C) `C#`\n  8.  Xiaolin Wu w/ Alpha (Matt Wrock) [How to add Alpha](https://code.msdn.microsoft.com/windowsdesktop/Convert-32-bit-PNGs-to-81ef8c81/view/SourceCode#content), [Source Code](https://nquant.codeplex.com) `C#`\n  9.  [MedianCut (mwcz)](https://github.com/mwcz/median-cut-js) `GPLv3`\n\n- Image Quantization Algorithms\n\n  1.  [All (ImageMagik doc)](http://www.imagemagick.org/Usage/quantize/#dither)\n  2.  [Error Diffusion dithering (Tanner Helland)](http://www.tannerhelland.com/4660/dithering-eleven-algorithms-source-code)\n  3.  [Riemersma dithering](http://www.compuphase.com/riemer.htm) `TODO: Check License`\n  4.  [Ordered dithering (Joel Yliluoma)](http://bisqwit.iki.fi/story/howto/dither/jy)\n\n- Color Distance Formulas\n\n  [Calculator + Info](http://colorizer.org/)\n\n  1.  Euclidean Distance\n  2.  Manhattan Distance\n  3.  CIE94 Distance\n      - [Source Code (Iulius Curt)](https://github.com/iuliux/CIE94.js)\n  4.  CIEDE2000\n      - [Math and Test Data Table (PDF)](http://www.ece.rochester.edu/~gsharma/ciede2000/ciede2000noteCRNA.pdf)\n      - [Info](http://www.ece.rochester.edu/~gsharma/ciede2000/)\n      - [Source Code (Greg Fiumara)](https://github.com/gfiumara/CIEDE2000) `C`\n      - [Source Code (THEjoezack)](https://github.com/THEjoezack/ColorMine/blob/master/ColorMine/ColorSpaces/Comparisons/CieDe2000Comparison.cs) `C#`\n      - [Online Calculator](http://colormine.org/delta-e-calculator/cie2000)\n  5.  Euclidean Distance w/o Alpha (RGBQuant)\n  6.  Euclidean Distance w/o sRGB coefficients (Xiaolin Wu Quant)\n  7.  Manhattan Distance w/o sRGB coefficients (NeuQuant)\n  8.  [CMetric](http://www.compuphase.com/cmetric.htm) `DRAFT!`\n\n- Color conversion formulas\n\n  1.  [Pseudo-code](http://www.easyrgb.com/?X=MATH)\n\n> Be sure to fix rgb2xyz/xyz2lab. Issue is with strange part of code: `r = r > 0.04045 ? ...`. Check http://en.wikipedia.org/wiki/Lab_color_space\n\n- Image Quality Assessment\n\n  1.  [SSIM info](http://en.wikipedia.org/wiki/Structural_similarity)\n  2.  [SSIM (Rhys-e)](https://github.com/rhys-e/structural-similarity) `Java` `License: MIT`\n  3.  PSNR ? TBD\n  4.  MSE ? TBD\n\n- Other\n\n  1.  [HUSL (Boronine) - info](http://www.husl-colors.org)\n  2.  [HUSL (Boronine) - code](https://github.com/husl-colors/husl)\n  3.  [Color Image Quantization for Frame Buffer Display](https://www.cs.cmu.edu/~ph/ciq_thesis)\n  4.  [K-Means](http://arxiv.org/pdf/1101.0395.pdf)\n  5.  [Efficient Color Quantization by Hierarchical Clustering Algorithms](ftp://cs.joensuu.fi/pub/Theses/2005_MSc_Hautamaki_Ville.pdf)\n  6.  http://www.codeproject.com/Articles/66341/A-Simple-Yet-Quite-Powerful-Palette-Quantizer-in-C\n\n## License\n\n[MIT](LICENSE)\n"
+  "readme": "## image-q\n\nComplete Image Quantization Library in **TypeScript** _(MIT License)_\n\n[![Demo (outdated, use /packages/demo for up-to-date demo)](https://img.shields.io/badge/demo-online-brightgreen.svg)](https://ibezkrovnyi.github.io/image-quantization-demo/)\n[![GitHub](https://img.shields.io/badge/github-.com-brightgreen.svg)](https://github.com/ibezkrovnyi/image-quantization/tree/main/packages/image-q)\n[![NPM](https://badge.fury.io/js/image-q.svg)](https://www.npmjs.com/package/image-q)\n[![API)](https://img.shields.io/badge/API-Available-blue.svg)](http://ibezkrovnyi.github.io/image-quantization/)\n[![NPM License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)\n\n![quantization](packages/image-q/quantization.png)\n\n## Table of Contents\n\n- [<span style=\"color: red\">API Documentation and Usage</span>](http://ibezkrovnyi.github.io/image-quantization/)\n- [Introduction](#introduction)\n- [Features](#features)\n- [Todo](#todo)\n- [Breaking changes](#breaking-changes)\n- [Changelog](#changelog)\n- [Credits](#credits)\n- [References](#references)\n- [License](#license)\n\n## Introduction\n\nImage Color Number Reduction with alpha support using RGBQuant/NeuQuant/Xiaolin Wu's algorithms and Euclidean/Manhattan/CIEDE2000 color distance formulas in TypeScript\n\n## Features\n\n1. Platforms supported\n\n   - Browser (Chrome 7.0+, FireFox 4.0+, IE 10+, Opera 11.6+, Safari 5.1+)\n   - Node.js 6.0+\n\n2. API\n   - Basic API: sync and promise-based async\n   - Advanced API: sync and generator-based\n3. Builds\n\n   - `dist/cjs/image-q.js` - CommonJS\n   - `dist/esm/image-q.js` - ESM (ESNext)\n   - `dist/cjs/image-q.js` - UMD\n\n4. Import\n   - `HTMLImageElement`\n   - `HTMLCanvasElement`\n   - `NodeCanvas`\n   - `ImageData`\n   - `Array`\n   - `CanvasPixelArray`\n   - `Uint8Array`\n   - `Uint32Array`\n5. Color Distance\n\n   - `Euclidean` - 1/1/1/1 coefficients (originally used in Xiaolin Wu's Quantizer **WuQuant**)\n   - `EuclideanBT709NoAlpha` - BT.709 sRGB coefficients (originally used in **RGBQuant**)\n   - `EuclideanBT709` BT.709 sRGB coefficients + alpha support\n   - `Manhattan` - 1/1/1/1 coefficients (originally used in **NeuQuant**)\n   - `ManhattanBT709` - BT.709 sRGB coefficients\n   - `ManhattanNommyde` - see https://github.com/igor-bezkrovny/image-quantization/issues/4#issuecomment-234527620\n   - `CIEDE2000` - CIEDE2000 (very slow)\n   - `CIE94Textiles` - CIE94 implementation for textiles\n   - `CIE94GraphicArts` - CIE94 implementation for graphic arts\n   - `CMetric` - see http://www.compuphase.com/cmetric.htm\n   - `PNGQuant` - used in pngQuant tool\n\n6. Palette Quantizers\n   - `NeuQuant` (original code ported, integer calculations)\n   - `NeuQuantFloat` (floating-point calculations)\n   - `RGBQuant`\n   - `WuQuant`\n7. Image Quantizers\n\n   - `NearestColor`\n   - `ErrorDiffusionArray` - two modes of error propagation are supported: `xnview` and `gimp`\n     1. `FloydSteinberg`\n     2. `FalseFloydSteinberg`\n     3. `Stucki`\n     4. `Atkinson`\n     5. `Jarvis`\n     6. `Burkes`\n     7. `Sierra`\n     8. `TwoSierra`\n     9. `SierraLite`\n   - `ErrorDiffusionRiemersma` - Hilbert space-filling curve is used\n\n8. Output\n   - `Uint32Array`\n   - `Uint8Array`\n\n## Include `image-q` library into your project\n\n##### ES6 module\n\n```javascript\n// will import ESM (ESNext) or UMD version depending on your bundler/node\nimport * as iq from 'image-q';\n```\n\n##### CommonJS\n\n```javascript\nvar iq = require('image-q');\n```\n\n##### As a global variable (Browser)\n\n```html\n<script\n  src=\"<path-to image-q/dist/umd/image-q.js>\"\n  type=\"text/javascript\"\n  charset=\"utf-8\"\n></script>\n```\n\n## How to use\n\nPlease refer to [API Documentation and Usage](http://ibezkrovnyi.github.io/image-quantization/)\n\n## Breaking changes\n\n#### 2.1.1\n\n    + PaletteQuantizer#quantize => PaletteQuantizer#quantizeSync\n    + ImageQuantizer#quantize => ImageQuantizer#quantizeSync\n\n#### 2.0.1 - 2.0.4 (2018-02-22)\n\n    + EuclideanRgbQuantWOAlpha => EuclideanBT709NoAlpha\n    + EuclideanRgbQuantWithAlpha => EuclideanBT709\n    \t+ ManhattanSRGB => ManhattanBT709\n    \t+ IImageDitherer => AbstractImageQuantizer\n    \t+ IPaletteQuantizer => AbstractPaletteQuantizer\n    \t+ PointContainer.fromNodeCanvas => PointContainer.fromHTMLCanvasElement\n    \t+ PointContainer.fromArray => PointContainer.fromUint8Array\n    + PointContainer.fromBuffer (Node.js, new)\n    \t+ CMETRIC => CMetric\n    \t+ PNGQUANT => PNGQuant\n    \t+ SSIM Class => ssim function\n\n## TODO\n\n1. ~~notification about progress~~\n2. ~~riemersma dithering~~\n3. ordered dithering <-- is there anyone who needs it?\n4. readme update, more examples\n5. demo update (latest image-q npm version should be used in demo)\n\n## Changelog\n\n##### 3.0.6\n    + Fixed: \"Always empty result in certain webpack / babel configs\" (#95)\n\n##### 3.0.0\n    + pnpm monorepo, esbuild for faster builds, typescript upgraded\n\n##### 2.1.1\n\n    + Basic (Simple) API implemented\n    + see breaking changes\n\n##### 2.0.5 (2018-02-23)\n\n    + @types/node moved to 'dependencies'\n\n##### 2.0.4 (2018-02-23)\n\n    + documentation added\n    + some refactorings/renames, see breaking changes\n\n##### 2.0.3 (2018-02-22)\n\n    + circular dependency removed\n\n##### 2.0.2 (2018-02-22)\n\n    + readme updated\n\n##### 2.0.1 (2018-02-22)\n\n    + progress tracking api (using es6 generators) added\n    + strinct lint rules (+code cleanup/renames)\n    + rollup (3 different versions - umd, cjs, esm + source maps + d.ts)\n    + latest TypeScript\n    + jest\n    + snapshot tests\n    + coverage (+coveralls)\n    + greenkeeper\n\n##### 1.1.1 (2016-08-28)\n\n    + CIEDE2000 - incorrect calculation fixed\n    + CIEDE2000 - alpha channel now has only 25% impact on color distance instead of 66%\n    + CIE94 - added 2 types (textiles and graphics art) according to spec\n    + CIE94 - alpha support added\n    + rgb2xyz, lab2xyz, xyz2rgb, xyz2lab - gamma correction\n    + lab2xyz, xyz2lab - refY should be 100 (1.00000) instead of 10 (0.10000)\n    + manhattan with new (Nommyde) coefficients added\n    + mocha tests added\n    + webpack integration\n    + image-q is now UMD module\n    + travis-ci integration\n    + typescript 2.0\n    + indentation with 4 spaces\n\n##### 0.1.4 (2015-06-24)\n\n    + Refactoring\n    + Riemersma dithering added (Hilbert Curve)\n    + Readme.md updated\n    + build.cmd updated\n\n##### 0.1.3 (2015-06-16)\n\n    + NeuQuant is fixed (again) according to original Anthony Dekker source code (all values should be integer)\n    + Error Diffusion Dithering is now calculates error like XNVIEW\n    + Refactoring\n\n##### 0.1.2 (2015-06-16)\n\n    + Documentation generation fixed\n    + File name case problem fixed\n\n##### 0.1.1 (2015-06-16)\n\n    + Auto-generated documentation added\n    + Refactoring\n\n##### 0.1.0 (2015-06-16)\n\n    + Code cleanup, removed unnecessary files\n\n##### 0.0.5 (2015-06-16)\n\n    + PNGQuant color distance added, need to check its quality\n    + CIEDE2000 and CIE94 fixed for use in NeuQuant\n    + NeuQuant is fixed according to original Anthony Dekker source code (all values should be integer)\n    + Code refactoring and cleanup\n    * We have some slowdown because of red/green/blue/alpha normalization according to white point per each calculateRaw/calculateNormalized call\n\n##### 0.0.4 (2015-06-15)\n\n    + CIEDE2000 color distance equation optimized (original CIEDE2000 equation is available as class `CIEDE2000_Original`)\n\n##### 0.0.3b (2015-06-11)\n\n    + CMetric color distance fixed\n\n##### 0.0.3a (2015-06-11)\n\n    + Cleanup\n    + Draft of CMetric color distance added\n\n##### 0.0.2 (2015-06-10)\n\n    + rgb2xyz & xyz2lab fixed. CIEDE2000 works much better now.\n    + CIE94 distance formula added. More investigation is needed.\n\n##### 0.0.1\n\n    + Initial\n\n## Credits\n\nThanks to Leon Sorokin for information share and his original RGBQuant!\n\n## References\n\n- Palette Quantization Algorithms\n\n  1.  [RGBQuant (Leon Sorokin)](https://github.com/leeoniya/RgbQuant.js) `JavaScript`\n  2.  [NeuQuant (Johan Nordberg)](https://github.com/jnordberg/gif.js/blob/master/src/TypedNeuQuant.js) `TypeScript`\n  3.  [NeuQuant (Tim Oxley)](https://github.com/timoxley/neuquant) `JavaScript`\n  4.  [NeuQuant (Devon Govett)](https://github.com/devongovett/neuquant) `JavaScript`\n  5.  [NeuQuant32 (Stuart Coyle)](https://github.com/stuart/pngnq/blob/master/src/neuquant32.c) `C`\n  6.  [Xiaolin Wu (Xiaolin Wu)](http://www.ece.mcmaster.ca/~xwu/cq.c) `C`\n  7.  [Xiaolin Wu (Smart-K8)](http://www.codeproject.com/Articles/66341/A-Simple-Yet-Quite-Powerful-Palette-Quantizer-in-C) `C#`\n  8.  Xiaolin Wu w/ Alpha (Matt Wrock) [How to add Alpha](https://code.msdn.microsoft.com/windowsdesktop/Convert-32-bit-PNGs-to-81ef8c81/view/SourceCode#content), [Source Code](https://nquant.codeplex.com) `C#`\n  9.  [MedianCut (mwcz)](https://github.com/mwcz/median-cut-js) `GPLv3`\n\n- Image Quantization Algorithms\n\n  1.  [All (ImageMagik doc)](http://www.imagemagick.org/Usage/quantize/#dither)\n  2.  [Error Diffusion dithering (Tanner Helland)](http://www.tannerhelland.com/4660/dithering-eleven-algorithms-source-code)\n  3.  [Riemersma dithering](http://www.compuphase.com/riemer.htm) `TODO: Check License`\n  4.  [Ordered dithering (Joel Yliluoma)](http://bisqwit.iki.fi/story/howto/dither/jy)\n\n- Color Distance Formulas\n\n  [Calculator + Info](http://colorizer.org/)\n\n  1.  Euclidean Distance\n  2.  Manhattan Distance\n  3.  CIE94 Distance\n      - [Source Code (Iulius Curt)](https://github.com/iuliux/CIE94.js)\n  4.  CIEDE2000\n      - [Math and Test Data Table (PDF)](http://www.ece.rochester.edu/~gsharma/ciede2000/ciede2000noteCRNA.pdf)\n      - [Info](http://www.ece.rochester.edu/~gsharma/ciede2000/)\n      - [Source Code (Greg Fiumara)](https://github.com/gfiumara/CIEDE2000) `C`\n      - [Source Code (THEjoezack)](https://github.com/THEjoezack/ColorMine/blob/master/ColorMine/ColorSpaces/Comparisons/CieDe2000Comparison.cs) `C#`\n      - [Online Calculator](http://colormine.org/delta-e-calculator/cie2000)\n  5.  Euclidean Distance w/o Alpha (RGBQuant)\n  6.  Euclidean Distance w/o sRGB coefficients (Xiaolin Wu Quant)\n  7.  Manhattan Distance w/o sRGB coefficients (NeuQuant)\n  8.  [CMetric](http://www.compuphase.com/cmetric.htm) `DRAFT!`\n\n- Color conversion formulas\n\n  1.  [Pseudo-code](http://www.easyrgb.com/?X=MATH)\n\n> Be sure to fix rgb2xyz/xyz2lab. Issue is with strange part of code: `r = r > 0.04045 ? ...`. Check http://en.wikipedia.org/wiki/Lab_color_space\n\n- Image Quality Assessment\n\n  1.  [SSIM info](http://en.wikipedia.org/wiki/Structural_similarity)\n  2.  [SSIM (Rhys-e)](https://github.com/rhys-e/structural-similarity) `Java` `License: MIT`\n  3.  PSNR ? TBD\n  4.  MSE ? TBD\n\n- Other\n\n  1.  [HUSL (Boronine) - info](http://www.husl-colors.org)\n  2.  [HUSL (Boronine) - code](https://github.com/husl-colors/husl)\n  3.  [Color Image Quantization for Frame Buffer Display](https://www.cs.cmu.edu/~ph/ciq_thesis)\n  4.  [K-Means](http://arxiv.org/pdf/1101.0395.pdf)\n  5.  [Efficient Color Quantization by Hierarchical Clustering Algorithms](ftp://cs.joensuu.fi/pub/Theses/2005_MSc_Hautamaki_Ville.pdf)\n  6.  http://www.codeproject.com/Articles/66341/A-Simple-Yet-Quite-Powerful-Palette-Quantizer-in-C\n\n## License\n\n[MIT](LICENSE)\n"
 }

README.md

@@ -152,2 +152,8 @@ ## image-q
 
+##### 3.0.6
+    + Fixed: "Always empty result in certain webpack / babel configs" (#95)
+
+##### 3.0.0
+    + pnpm monorepo, esbuild for faster builds, typescript upgraded
+
 ##### 2.1.1
@@ -154,0 +160,0 @@

src/constants/bt709.ts

@@ -20,3 +20,2 @@ /**
 
-// tslint:disable-next-line:naming-convention
 export enum x {
@@ -29,3 +28,2 @@ RED = 0.64,
 
-// tslint:disable-next-line:naming-convention
 export enum y {
@@ -32,0 +30,0 @@ RED = 0.33,

src/conversion/lab2rgb.ts

@@ -11,3 +11,2 @@ /**
 
-// tslint:disable-next-line:naming-convention
 export function lab2rgb(L: number, a: number, b: number) {
@@ -14,0 +13,0 @@ const xyz = lab2xyz(L, a, b);

src/conversion/lab2xyz.ts

@@ -16,3 +16,2 @@ /**
 
-// tslint:disable-next-line:naming-convention
 export function lab2xyz(L: number, a: number, b: number) {
@@ -19,0 +18,0 @@ const y = (L + 16) / 116;

src/distance/cie94.ts

@@ -22,6 +22,6 @@ /**
    */
-  protected _kA!: number;
-  protected _Kl!: number; // tslint:disable-line:naming-convention
-  protected _K1!: number; // tslint:disable-line:naming-convention
-  protected _K2!: number; // tslint:disable-line:naming-convention
+  declare protected _kA: number;
+  declare protected _Kl: number;
+  declare protected _K1: number;
+  declare protected _K2: number;
 
@@ -28,0 +28,0 @@ calculateRaw(

src/distance/ciede2000.ts

@@ -12,5 +12,2 @@ /**
 
-// tslint:disable:variable-name
-// tslint:disable:naming-convention
-
 /**
@@ -27,3 +24,3 @@ * CIEDE2000 algorithm - Adapted from Sharma et al's MATLAB implementation at
   private static readonly _kA = (0.25 * 100) / 255;
-  private static readonly _pow25to7 = 25 ** 7; // 1Math.pow(25, 7);
+  private static readonly _pow25to7 = 25 ** 7;
   private static readonly _deg360InRad = degrees2radians(360);
@@ -30,0 +27,0 @@ private static readonly _deg180InRad = degrees2radians(180);

src/distance/euclidean.ts

@@ -15,6 +15,6 @@ /**
 export abstract class AbstractEuclidean extends AbstractDistanceCalculator {
-  protected _kR!: number;
-  protected _kG!: number;
-  protected _kB!: number;
-  protected _kA!: number;
+  declare protected _kR: number;
+  declare protected _kG: number;
+  declare protected _kB: number;
+  declare protected _kA: number;
 
@@ -21,0 +21,0 @@ calculateRaw(

src/distance/manhattan.ts

@@ -15,6 +15,6 @@ /**
 export abstract class AbstractManhattan extends AbstractDistanceCalculator {
-  protected _kR!: number;
-  protected _kG!: number;
-  protected _kB!: number;
-  protected _kA!: number;
+  declare protected _kR: number;
+  declare  protected _kG: number;
+  declare protected _kB: number;
+  declare protected _kA: number;
 
@@ -21,0 +21,0 @@ calculateRaw(

src/image/spaceFillingCurves/hilbertCurve.ts

@@ -112,3 +112,2 @@ import { ProgressTracker } from '../../utils/progressTracker';
   }
-  // eslint-disable-next-line default-case
   switch (direction) {
@@ -115,0 +114,0 @@ case Direction.LEFT:

src/palette/rgbquant/colorHistogram.ts

@@ -61,7 +61,6 @@ /*
 
-    this._histogram = Object.create(null); // tslint:disable-line:no-null-keyword
+    this._histogram = Object.create(null);
   }
 
   sample(pointContainer: PointContainer) {
-    // eslint-disable-next-line default-case
     switch (this._method) {
@@ -68,0 +67,0 @@ case 1:

src/palette/rgbquant/rgbquant.ts

@@ -109,3 +109,3 @@ /*
     const colorArray = palette.getPointContainer().getPointArray();
-    const usageArray = new Array(idxi32.length); // tslint:disable-line:prefer-array-literal
+    const usageArray = new Array(idxi32.length);
 
@@ -112,0 +112,0 @@ for (let i = 0; i < idxi32.length; i++) {

src/palette/wu/wuQuant.ts

@@ -1002,3 +1002,2 @@ /**
     // cuts in a certain direction
-    // eslint-disable-next-line default-case
     switch (direction) {
@@ -1005,0 +1004,0 @@ case WuQuant._red:

src/quality/ssim.ts

@@ -13,4 +13,4 @@ /**
 // http://en.wikipedia.org/wiki/Structural_similarity
-const K1 = 0.01; // tslint:disable-line:naming-convention
-const K2 = 0.03; // tslint:disable-line:naming-convention
+const K1 = 0.01;
+const K2 = 0.03;
 
@@ -26,3 +26,3 @@ export function ssim(image1: PointContainer, image2: PointContainer) {
   const bitsPerComponent = 8;
-  const L = (1 << bitsPerComponent) - 1; // tslint:disable-line:naming-convention
+  const L = (1 << bitsPerComponent) - 1;
   const c1 = (K1 * L) ** 2;
@@ -29,0 +29,0 @@ const c2 = (K2 * L) ** 2;

src/utils/arithmetic.ts

@@ -46,3 +46,3 @@ export function degrees2radians(n: number) {
   if (type === 'number' || type === 'string') {
-    const ord = Object.create(null); // tslint:disable-line:no-null-keyword
+    const ord = Object.create(null);
     for (let i = 0, l = arrayToSort.length; i < l; i++) {
@@ -49,0 +49,0 @@ const val = arrayToSort[i] as unknown as string;

src/utils/palette.ts

@@ -105,3 +105,3 @@ /**
   ) {
-    let idx = this._nearestPointFromCache('' + point.uint32); // eslint-disable-line prefer-template
+    let idx = this._nearestPointFromCache('' + point.uint32);
     if (idx >= 0) return idx;
@@ -108,0 +108,0 @@

src/utils/pointContainer.ts

@@ -78,3 +78,2 @@ /**
 
-    // eslint-disable-next-line no-undef
     const canvas = document.createElement('canvas');
@@ -84,4 +83,3 @@ canvas.width = width;
 
-    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-    const ctx = canvas.getContext('2d')!; // tslint:disable-line:no-non-null-assertion
+    const ctx = canvas.getContext('2d')!;
     ctx.drawImage(img, 0, 0, width, height, 0, 0, width, height);
@@ -96,4 +94,3 @@
 
-    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-    const ctx = canvas.getContext('2d')!; // tslint:disable-line:no-non-null-assertion
+    const ctx = canvas.getContext('2d')!;
     const imgData = ctx.getImageData(0, 0, width, height);
@@ -100,0 +97,0 @@

No alert changes

Improved metrics

Number of lines in readme file

333

1.83%

Worsened metrics

Total package byte prevSize

1010141

-0.45%

Lines of code

12859

-0.32%

No dependency changes