平时我们拼接图片的时候一般都要通过ps或者其他图片处理工具来进行处理合成,这次有个需求就需要进行图片拼接,而且我希望是可以直接使用代码进行拼接,于是就有了这么一个工具包。
通过该插件,我们可以将图片进行以下操作:
如下,我们有这么两张图片,现在我们可以通过该工具将它们拼接成一张
n1.jpg
n2.jpg
const consoleInput = require('@jyeontu/img-concat'); const ImgConcatClass = new ImgConcat(); const p1 = { left:'.\img\n1.jpg', right:'.\img\n2.jpg', target:'.\longImg' } // 横向拼接两张图片 ImgConcatClass.collapseHorizontal(p1).then(res=>{ console.log(`拼接完成,图片路径为${res}`); });
仍是上面的两张图片,我们将其进行纵向拼接
const consoleInput = require('@jyeontu/img-concat'); const ImgConcatClass = new ImgConcat(); const p1 = { left:'.\img\n1.jpg', right:'.\img\n2.jpg', target:'.\longImg' } //纵向拼接两张图片 ImgConcatClass.collapseVertical(p1).then(res=>{ console.log(`拼接完成,图片路径为${res}`); });
我们也可以直接将某一目录中的所有图片进行批量拼接成长图,如下图,我们现在要对该目录下的所有图片进行拼接:
const consoleInput = require('@jyeontu/img-concat'); const ImgConcatClass = new ImgConcat(); const p = { folderPath:'.\img', //资源目录 targetFolder:'.\longImg', //转换后图片存放目录 direction:'y' //拼接方向,y为横向,n为纵向 } // 拼接目录下的所有图片 ImgConcatClass.concatAll(p).then(res=>{ console.log(`拼接完成,图片路径为${res}`); })
const consoleInput = require('@jyeontu/img-concat'); const ImgConcatClass = new ImgConcat(); const p = { folderPath:'.\img', //资源目录 targetFolder:'.\longImg', //转换后图片存放目录 direction:'n' //拼接方向,y为横向,n为纵向 } // 拼接目录下的所有图片 ImgConcatClass.concatAll(p).then(res=>{ console.log(`拼接完成,图片路径为${res}`); })
我们也可以自己定义图片拼接矩阵,shape
为二维数组,定义各个位置的图片,具体如下:
const consoleInput = require('@jyeontu/img-concat'); const ImgConcatClass = new ImgConcat(); const p = { shape:[['.\img\n1.jpg','.\img\white.jpg','.\img\n2.jpg'], ['.\img\white.jpg','.\img\n3.jpg','.\img\white.jpg'], ['.\img\n4.jpg','.\img\white.jpg','.\img\n5.jpg'] ], target:'.\longImg' }; //自定义矩阵拼接图片 ImgConcatClass.conCatByMaxit(p).then(res=>{ console.log(`拼接完成,图片路径为${res}`); });
使用GraphicsMagick进行图片拼接
const gm = require('gm'); collapse (left,right,target,flag = true) { return new Promise((r) => { gm(left).append(right,flag).write(target, err => { if(err) console.log(err); r(); }) }) }
const gm = require('gm'); const fs = require('fs'); const path = require('path'); const progressBar = require('@jyeontu/progress-bar'); const {getFileSuffix,getMetadata,resizeImage} = require('./util'); doConcatAll = async(folderPath,targetFolder,direction) => { let fileList = fs.readdirSync(folderPath); fileList.sort((a, b) => { return path.basename(a) - path.basename(b); }); const extensionName = getFileSuffix(fileList[0], "."); let targetFilePath = path.join(targetFolder, new Date().getTime() + '.' + extensionName); const barConfig = { duration: fileList.length - 1, current: 0, block:'█', showNumber:true, tip:{ 0: '拼接中……', 100:'拼接完成' }, color:'green' }; let progressBarC = new progressBar(barConfig); const imgInfo = await this.getImgInfo(path.join(folderPath, fileList[0])); for (let index = 1; index < fileList.length; index++) { let leftFile = path.join(folderPath, fileList[index - 1]); let rightFile = path.join(folderPath, fileList[index]); const leftPath = await this.resizeImage({ path:leftFile, width:imgInfo.width, height:imgInfo.height }); const rightPath = await this.resizeImage({ path:rightFile, width:imgInfo.width, height:imgInfo.height }); progressBarC.run(index); await this.collapse(index == 1 ? leftPath : targetFilePath,rightPath,targetFilePath,direction); fs.unlinkSync(leftPath); fs.unlinkSync(rightPath); } console.log(''); return targetFilePath; }
const gm = require('gm'); const fs = require('fs'); const path = require('path'); const progressBar = require('@jyeontu/progress-bar'); const {getFileSuffix,getMetadata,resizeImage} = require('./util'); async conCatByMaxit(res){ const {shape} = res; const tmpList = []; const barConfig = { duration: shape[0].length * shape.length, current: 0, block:'█', showNumber:true, tip:{ 0: '拼接中……', 100:'拼接完成' }, color:'green' }; const progressBarC = new progressBar(barConfig); let target = ''; let extensionName = getFileSuffix(shape[0][0], "."); const imgInfo = await this.getImgInfo(shape[0][0]); for(let i = 0; i < shape.length; i++){ target = res.target + '\' + `targetImg${i}.${extensionName}`; for(let j = 1; j < shape[i].length; j++){ const leftPath = await this.resizeImage({ path:shape[i][j - 1], width:imgInfo.width, height:imgInfo.height }); const rightPath = await resizeImage({ path:shape[i][j], width:imgInfo.width, height:imgInfo.height }); tmpList.push(leftPath,rightPath,target); progressBarC.run(shape[i].length * i + j); await this.collapse(j == 1 ? leftPath : target,rightPath,target); } if( i > 0){ await this.collapse(res.target + '\' + `targetImg${i - 1}.${extensionName}`,target,target,false); } } progressBarC.run(shape[0].length * shape.length); const newTarget = res.target + '\' + new Date().getTime() + `.${extensionName}`; fs.renameSync(target,newTarget) for(let i = 0; i < tmpList.length; i++){ try{ fs.unlinkSync(tmpList[i]); }catch(err){ // console.error(err); } } console.log(''); return newTarget; }
const consoleInput = require('@jyeontu/img-concat'); const ImgConcatClass = new ImgConcat();
左边图片路径
右边图片路径
合成图片保存目录
const p1 = { left:'.\img\n1.jpg', right:'.\img\n2.jpg', target:'.\longImg' } // 横向拼接两张图片 ImgConcatClass.collapseHorizontal(p1).then(res=>{ console.log(`拼接完成,图片路径为${res}`); });
左边图片路径
右边图片路径
合成图片保存目录
const p1 = { left:'.\img\n1.jpg', right:'.\img\n2.jpg', target:'.\longImg' } // 纵向拼接两张图片 ImgConcatClass.collapseVertical(p1).then(res=>{ console.log(`拼接完成,图片路径为${res}`); });
资源文件目
合并图片保存目录
图片合并方向,y为横向,n为纵向
const consoleInput = require('@jyeontu/img-concat'); const ImgConcatClass = new ImgConcat(); const p = { folderPath:'.\img', //资源目录 targetFolder:'.\longImg', //合并后图片存放目录 direction:'y' //拼接方向,y为横向,n为纵向 } // 拼接目录下的所有图片 ImgConcatClass.concatAll(p).then(res=>{ console.log(`拼接完成,图片路径为${res}`); })
图片合并矩阵,传入各个位置的图片路径。
合并后图片的保存路径
const p = { shape:[['.\img\n1.jpg','.\img\white.jpg','.\img\n2.jpg'], ['.\img\white.jpg','.\img\n3.jpg','.\img\white.jpg'], ['.\img\n4.jpg','.\img\white.jpg','.\img\n5.jpg'] ], target:'.\longImg' }; //自定义矩阵拼接图片 ImgConcatClass.conCatByMaxit(p).then(res=>{ console.log(`拼接完成,图片路径为${res}`); });
https://gitee.com/zheng_yongtao/node-scripting-tool/tree/master/src/imgConcat