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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.root{
width: calc(100vw - 700px);
overflow-x: auto;
}
div{
line-height: 25px;
}
#canvas {
margin-left: 50px;
display: block;
}
#color-block1,#color-block2,#color-block3,#color-block4{
width: 20px;
height: 20px;
display: inline-block;
margin: 0 5px;
background: transparent;
border: 1px solid #ccc;
}
.flex{
display: flex;
align-items: center;
text-align: center;
line-height: 30px;
cursor: pointer;
color: #888;
transition: color 0.3s;
flex-wrap: wrap;
}
.flex:hover{
color: #000;
}
body{
display: flex;
justify-content: center;
}
#colors{
display: flex;
flex-wrap: wrap;
}
.color{
width: 160px;
height: 50px;
color: #ccc;
line-height: 120px;
margin: 20px 0;
}
</style>
</head>
<body>
<div class="root">
<iframe
style="margin-left: 2px; margin-bottom:-5px;"
frameborder="0" scrolling="0" width="100px" height="20px"
src="https://ghbtns.com/github-btn.html?user=o2team&repo=image-color-utils&type=star&count=true" >
</iframe>
<iframe
style="margin-left: 2px; margin-bottom:-5px;"
frameborder="0" scrolling="0" width="100px" height="20px"
src="https://ghbtns.com/github-btn.html?user=o2team&repo=image-color-utils&type=fork&count=true" >
</iframe>
<h3>图片操作选项</h3>
<label class="flex">
提取色值1：
<input type='radio' value='pickColor1' name='action' checked onchange="changeAction(this.value)" />
<div id="color-block1"></div>
</label>
<label class="flex">
色值1深浅判断：
<button id='deepLightBtn'>开始判断</button>
</label>
<label class="flex">
提取色值2：
<input type='radio' value='pickColor2' name='action' onchange="changeAction(this.value)" />
<div id="color-block2"></div>
</label>
<div class="flex">
色值1/色值2 相似度对比：
<div id="color-block3"></div>
<div id="color-block4"></div>
<button id='compareBtn'>开始对比</button>
</div>
<label class="flex">
边界自动吸附（找不到临界点则不移动）：
<input type='radio' value='adjust' name='action' onchange="changeAction(this.value)" /> <button id="undo" style="margin-left: 20px;">撤销</button>
</label>
<div class="flex">
更换图片：
<input type="file" id="upload" accept="image/png,image/jpeg,image/jpg" />
</div>
<label class="flex">
色彩列表：
<div id="colors"></div>
</label>
<h3>参数配置</h3>
<div class="flex">
色彩边界阈值（阈值越高，相似条件越低）：
<input type='range' id='boundary' name='boundaryValue' value="10" min="10" max="100" step="2"/>
<span id="boundaryText">10</span>
</div>
<div class="flex" style="display: none">
颜色提取阈值（阈值越高，相似条件越低）：
<input type='range' id='boundary2' name='boundaryValue2' value="0" min="0" max="100" step="2"/>
<span id="boundaryText2">0</span>
</div>
<div class="flex">
边界扫描距离（由内向外）：
<input type='range' id='mockMove' name='mockMovePx' value="30" min="10" max="200" step="10"/>
<span id="mockMoveText">30px</span>
</div>
</div>
<canvas id='canvas' width="375" height="812"> </canvas>
<script>
var action = 'pickColor1'
var blockColor1 = [255,255,255]
var blockColor2 = [255,255,255]
var pickColorsValue = []
const canvasDom = document.getElementById('canvas')
function changeAction(value){
action = value
canvasDom.style.cursor = action === 'adjust' ? 'crosshair' : `default`
}
</script>
<script type="module">
import { ImageColorUtils, rgb2hsv, isDeepColorByHsv } from './build/index.es.js'
var main = {
// 初始化
init(){
const imageUrl = 'https://storage.360buyimg.com/dataset-activity-mini/png-jpg-00002-2.jpg'
// const imageUrl = 'https://img20.360buyimg.com/babel/s1180x940_jfs/t1/147050/6/31926/85670/6357a9afE26ff5c66/3a6823f7820fb72b.jpg'
// const imageUrl='https://img10.360buyimg.com/img/jfs/t1/86699/27/29562/39551/62bec631E155c7e41/55d63c89279226f0.jpg'
const width = 500
this.isDrawing = false
this.rects = []
this.boundaryValue = 10
this.boundaryValue2 = 20
this.mockMovePx = 30
this.colors = document.getElementById('colors')
this.colorBlock1 = document.getElementById('color-block1')
this.colorBlock2 = document.getElementById('color-block2')
this.colorBlock3 = document.getElementById('color-block3')
this.colorBlock4 = document.getElementById('color-block4')
this.undo = document.getElementById('undo')
this.boundary = document.getElementById('boundary')
this.boundary2 = document.getElementById('boundary2')
this.boundaryText = document.getElementById('boundaryText')
this.boundaryText2 = document.getElementById('boundaryText2')
this.mockMove = document.getElementById('mockMove')
this.mockMoveText = document.getElementById('mockMoveText')
this.compareBtn = document.getElementById('compareBtn')
this.upload = document.getElementById('upload')
this.canvas = document.getElementById('canvas')
this.ctx = canvas.getContext('2d')
this.deepLightBtn = document.getElementById('deepLightBtn')
this.img = new Image()
this.img.crossOrigin = 'Anonymous'
this.img.onload = () => {
const height = width * this.img.height / this.img.width
// 计算出画布的宽高
this.initCanvas(width, height)
this.initEvent()
this.pickColors()
}
this.img.src = imageUrl
},
initCanvas(width,height) {
const lineColor = '#12f430'
this.canvas.width = width
this.canvas.height = height
this.canvas.style.width = width + 'px'
this.canvas.style.height = height + 'px'
this.ctx.lineWidth = 3
this.ctx.strokeStyle = lineColor
this.clear()
this.drawImage()
this.imageData = this.ctx.getImageData(0,0,this.canvas.width, this.canvas.height)
},
// 绘制
draw(x, y, width, height) {
this.clear()
this.drawImage()
this.drawRect(x, y, width, height)
this.rects.forEach(rect => {
this.drawRect(rect.x, rect.y, rect.width, rect.height)
})
},
// 清除画布
clear() {
this.ctx.clearRect(0,0,this.canvas.width, this.canvas.height)
},
// 绘制图片
drawImage() {
this.ctx.drawImage(this.img,0,0,this.canvas.width, this.canvas.height)
},
// 绘制标注框
drawRect(x, y, width, height){
this.ctx.strokeRect(x,y,width,height)
},
// 提取色值
pickColors(){
const colorUtils = new ImageColorUtils({
origin: this.img,
width:this.canvas.width,
height: this.canvas.height,
onload: ()=>{
this.colors.innerHTML=''
const res = colorUtils.pickColors()
for(const color of res.rgb){
const dom = document.createElement('div')
dom.className = 'color'
dom.style.background = color
dom.innerHTML = color
this.colors.appendChild(dom)
}
}
})
},
// 事件监听初始化
initEvent(){
let startX
let startY
let endX
let endY
const self = this
function adjust(leftTopPosition, rightBottomPosition) {
const imageColorUtils = new ImageColorUtils({ origin: self.img,width: Math.floor(self.canvas.width), height: Math.floor(self.canvas.height), boundaryValue: self.boundaryValue, mockMovePx: self.mockMovePx })
return imageColorUtils.adjust(leftTopPosition, rightBottomPosition)
}
function end() {
self.rects.push(adjust([startX, startY], [endX, endY] ))
startX = startY = endX = endY = null
self.isDrawing = false
self.draw()
}
this.undo.addEventListener('click',()=>{
self.rects.splice(self.rects.length - 1 )
self.draw()
})
this.boundary.addEventListener('change',(e)=>{
const value = parseInt(e.target.value)
this.boundaryValue = value
this.boundaryText.innerHTML = value
this.pickColors()
})
this.boundary2.addEventListener('change',(e)=>{
const value = parseInt(e.target.value)
this.boundaryValue2 = value
this.boundaryText2.innerHTML = value
this.pickColors()
})
this.mockMove.addEventListener('change',(e)=>{
const value = parseInt(e.target.value)
this.mockMovePx = value
this.mockMoveText.innerHTML = value + 'px'
})
this.upload.addEventListener('change',(e)=>{
const reader = new FileReader();
reader.addEventListener('load', () => {
this.img.src = reader.result;
this.rects = []
// this.initCanvas()
}, false);
reader.readAsDataURL(e.target.files[0]);
})
this.compareBtn.addEventListener('click', () => {
const result = ImageColorUtils.compare(blockColor1, blockColor2, this.boundaryValue, 'lab')
this.compareBtn.innerHTML = `（结果：${result ? '相似': '不相似'}）点击继续对比`
})
this.deepLightBtn.addEventListener('click', () => {
const rgb = blockColor1.slice(0,3)
const result = rgb2hsv(rgb)
const isDeep = isDeepColorByHsv(result)
console.log(isDeep)
// const result = ImageColorUtils.compare(blockColor1, blockColor2, this.boundaryValue, 'lab')
this.deepLightBtn.innerHTML = `（结果：${isDeep ? '深色': '浅色'}）点击继续判断`
})
this.canvas.addEventListener('click', (e) => {
if(!action.match('pickColor') && action !== 'compare' ){
return
}
const x = e.offsetX
const y = e.offsetY
const pickColor = new ImageColorUtils({
origin: this.img,
width:this.canvas.width,
height: this.canvas.height,
}).pickColor(x, y)
const color = `rgba(${pickColor.join(',')})`
if(action === 'pickColor1'){
this.colorBlock1.style.backgroundColor = color
this.colorBlock3.style.backgroundColor = color
blockColor1 = pickColor
} else if(action === 'pickColor2'){
this.colorBlock2.style.backgroundColor = color
this.colorBlock4.style.backgroundColor = color
blockColor2 = pickColor
}
})
this.canvas.addEventListener('mousedown', (e) => {
if(action !== 'adjust'){
return
}
this.isDrawing = true
startX = e.offsetX
startY = e.offsetY
this.canvas.addEventListener('mousemove', (e) => {
if(!this.isDrawing){
return
}
endX = e.offsetX
endY= e.offsetY
this.draw(startX, startY, endX - startX, endY - startY )
})
this.canvas.addEventListener('mouseup', (e) => {
if(!this.isDrawing){
return
}
end()
})
this.canvas.addEventListener('mouseout', () => {
if(!this.isDrawing){
return
}
end()
})
})
}
}
main.init()
</script>
</body>
</html>