extract-colors - npm Package Compare versions

Comparing version 0.2.0 to 0.2.1

dist/extract-colors.cjs.js

@@ -1,1 +0,1 @@
-class Color{constructor(t,o,r,e){this.isColor=!0,this.red=t,this.green=o,this.blue=r,this.hex=e,this.count=1}distance(t){return Math.abs(t.red-this.red)+Math.abs(t.green-this.green)+Math.abs(t.blue-this.blue)}getWeight(t){return this.count+this.getSaturation()*t}getSaturation(){return void 0===this.saturation&&(this.saturation=Math.max(Math.abs(this.red-this.green),Math.abs(this.red-this.blue),Math.abs(this.green-this.blue))),this.saturation}}class ColorGroup{constructor(){this.count=1,this.children={}}addGroup(t){return this.children[t]?this.children[t].count++:this.children[t]=new ColorGroup,this.children[t]}addColor(t,o,r,e){return this.children[t]?this.children[t].count++:this.children[t]=new Color(o,r,e,t),this.children[t]}getList(){return Object.keys(this.children).map(t=>this.children[t])}getMaxWeight(t){if(void 0===this.maxWeight){const o=this.getList().map(o=>o.isColor?o.getWeight(t):o.getMaxWeight(t));o.sort((t,o)=>o-t),this.maxWeight=o[0]||0}return this.maxWeight}getMaxWeightColor(t){const o=this.getList();return o.sort((o,r)=>{if(o.isColor)return r.getWeight(t)-o.getWeight(t);return r.getMaxWeight(t)-o.getMaxWeight(t)}),o[0].isColor?o[0]:o[0].getMaxWeightColor(t)}getColors(t,o){const r=this.getList().map(t=>{const r=t.count;const e=t.getMaxWeightColor(o);e.count=r;return e});r.sort((t,r)=>r.getWeight(o)-t.getWeight(o));const e=[];return r.forEach(o=>{const r=e.find(r=>r.distance(o)<t);r?r.count+=o.count:e.push(o)}),e}}class ColorsExtractor{constructor(t,{pixels:pixels=ColorsExtractor.pixelsDefault,distance:distance=ColorsExtractor.distanceDefault,saturationImportance:saturationImportance=ColorsExtractor.saturationImportanceDefault,splitPower:splitPower=ColorsExtractor.splitPowerDefault,colorValidator:colorValidator=ColorsExtractor.colorValidatorDefault}={}){this.pixels=pixels,this.splitPower=splitPower,this.distance=distance,this.saturationImportance=saturationImportance,this.colorValidator=colorValidator}process(t){const o=new ColorGroup,r=this.splitPower;for(let e=0;e<t.length;e+=4){const n=t[e],i=t[e+1],a=t[e+2],s=t[e+3];if(this.colorValidator(n,i,a,s)){const t=n<<16|i<<8|a,e=(n>>4&15)<<2|(i>>4&15)<<1|a>>4&15,s=Math.round(n*(r-1)/255)*(r*r)+Math.round(i*(r-1)/255)*r+Math.round(a*(r-1)/255);o.addGroup(s).addGroup(e).addColor(t,n,i,a)}}return o.getColors(this.distance,this.saturationImportance)}extract(t){return this.process(t).map(t=>({hex:"#"+"0".repeat(6-t.hex.toString(16).length)+t.hex.toString(16),red:t.red,green:t.green,blue:t.blue,area:t.count/this.pixels,saturation:t.saturation/255}))}}ColorsExtractor.pixelsDefault=1e4,ColorsExtractor.distanceDefault=150,ColorsExtractor.saturationImportanceDefault=5,ColorsExtractor.splitPowerDefault=10,ColorsExtractor.colorValidatorDefault=((t,o,r,e=255)=>e>250);const{createCanvas:createCanvas,loadImage:loadImage}=require("canvas"),getImageData=(t,o)=>{const r=t.width*t.height;const e=r<o?t.width:Math.round(t.width*Math.sqrt(o/r));const n=r<o?t.height:Math.round(t.height*Math.sqrt(o/r));const i=createCanvas(e,n);const a=i.getContext("2d");a.drawImage(t,0,0,t.width,t.height,0,0,e,n);return a.getImageData(0,0,e,n)},extractColorsFromImageData=(t,o)=>{const r=new ColorsExtractor(o);return r.extract(t.data)},extractColorsFromSrc=(t,o)=>{const r=new Image;r.src=t;extractColorsFromImage(r,o);return loadImage(t).then(t=>{const r=getImageData(t,ColorsExtractor.pixelsDefault);return extractColorsFromImageData(r,o)})},extractColors=(t,o)=>{if(t.width&&t.height&&t.data&&t.data.length)return new Promise(r=>{r(extractColorsFromImageData(t,o))});return extractColorsFromSrc(t,o)};export default extractColors;export{extractColorsFromImageData,extractColorsFromSrc};
+class Color{constructor(t,o,r,e){this.isColor=!0,this.red=t,this.green=o,this.blue=r,this.hex=e,this.count=1}distance(t){return Math.abs(t.red-this.red)+Math.abs(t.green-this.green)+Math.abs(t.blue-this.blue)}getWeight(t){return this.count+this.getSaturation()*t}getSaturation(){return void 0===this.saturation&&(this.saturation=Math.max(Math.abs(this.red-this.green),Math.abs(this.red-this.blue),Math.abs(this.green-this.blue))),this.saturation}}class ColorGroup{constructor(){this.count=1,this.children={}}addGroup(t){return this.children[t]?this.children[t].count++:this.children[t]=new ColorGroup,this.children[t]}addColor(t,o,r,e){return this.children[t]?this.children[t].count++:this.children[t]=new Color(o,r,e,t),this.children[t]}getList(){return Object.keys(this.children).map(t=>this.children[t])}getMaxWeight(t){if(void 0===this.maxWeight){const o=this.getList().map(o=>o.isColor?o.getWeight(t):o.getMaxWeight(t));o.sort((t,o)=>o-t),this.maxWeight=o[0]||0}return this.maxWeight}getMaxWeightColor(t){const o=this.getList();return o.sort((o,r)=>{if(o.isColor)return r.getWeight(t)-o.getWeight(t);return r.getMaxWeight(t)-o.getMaxWeight(t)}),o[0].isColor?o[0]:o[0].getMaxWeightColor(t)}getColors(t,o){const r=this.getList().map(t=>{const r=t.count;const e=t.getMaxWeightColor(o);e.count=r;return e});r.sort((t,r)=>r.getWeight(o)-t.getWeight(o));const e=[];return r.forEach(o=>{const r=e.find(r=>r.distance(o)<t);r?r.count+=o.count:e.push(o)}),e}}class ColorsExtractor{constructor(t,{pixels:pixels=ColorsExtractor.pixelsDefault,distance:distance=ColorsExtractor.distanceDefault,saturationImportance:saturationImportance=ColorsExtractor.saturationImportanceDefault,splitPower:splitPower=ColorsExtractor.splitPowerDefault,colorValidator:colorValidator=ColorsExtractor.colorValidatorDefault}={}){this.pixels=pixels,this.splitPower=splitPower,this.distance=distance,this.saturationImportance=saturationImportance,this.colorValidator=colorValidator}process(t){const o=new ColorGroup,r=this.splitPower;for(let e=0;e<t.length;e+=4){const a=t[e],n=t[e+1],i=t[e+2],s=t[e+3];if(this.colorValidator(a,n,i,s)){const t=a<<16|n<<8|i,e=(a>>4&15)<<2|(n>>4&15)<<1|i>>4&15,s=Math.round(a*(r-1)/255)*(r*r)+Math.round(n*(r-1)/255)*r+Math.round(i*(r-1)/255);o.addGroup(s).addGroup(e).addColor(t,a,n,i)}}return o.getColors(this.distance,this.saturationImportance)}extract(t){return this.process(t).map(t=>({hex:"#"+"0".repeat(6-t.hex.toString(16).length)+t.hex.toString(16),red:t.red,green:t.green,blue:t.blue,area:t.count/this.pixels,saturation:t.saturation/255}))}}ColorsExtractor.pixelsDefault=1e4,ColorsExtractor.distanceDefault=150,ColorsExtractor.saturationImportanceDefault=5,ColorsExtractor.splitPowerDefault=10,ColorsExtractor.colorValidatorDefault=((t,o,r,e=255)=>e>250);const{createCanvas:createCanvas,loadImage:loadImage}=require("canvas"),getImageData=(t,o)=>{const r=t.width*t.height;const e=r<o?t.width:Math.round(t.width*Math.sqrt(o/r));const a=r<o?t.height:Math.round(t.height*Math.sqrt(o/r));const n=createCanvas(e,a);const i=n.getContext("2d");i.drawImage(t,0,0,t.width,t.height,0,0,e,a);return i.getImageData(0,0,e,a)},extractColorsFromImageData=(t,o)=>{const r=new ColorsExtractor(o);return r.extract(t.data)},extractColorsFromSrc=(t,o)=>{const r=new Image;r.src=t;extractColorsFromImage(r,o);return loadImage(t).then(t=>{const r=getImageData(t,ColorsExtractor.pixelsDefault);return extractColorsFromImageData(r,o)})},extractColors=(t,o)=>{if(t.width&&t.height&&t.data&&t.data.length)return new Promise(r=>{r(extractColorsFromImageData(t,o))});return extractColorsFromSrc(t,o)};module.exports={extractColorsFromImageData:extractColorsFromImageData,extractColorsFromSrc:extractColorsFromSrc,extractColors:extractColors};

package.json

 {
   "name": "extract-colors",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Extract color palettes from images",
@@ -5,0 +5,0 @@ "main": "dist/extract-colors.cjs.js",

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