Generating Photos With Code

By: Steve Wang

// import the JIMP library
 
var Jimp = require("jimp");
var fs = require('fs')
 
let classPaths = [
    './people/arduino.jpg',
    './people/ingram.jpg',
    './people/lee.jpg',
]
 
 
let mangoPaths = [
    './mango/edited-IMG_8280.jpg',
    './mango/edited-smoke-mengo.jpg',
    './mango/edited-smoke-mengo.jpg',
    './mango/edited-IMG_8280.jpg',
]
 
//generated by chatgpt
function getFilePaths(directoryPath) {
  const files = fs.readdirSync(directoryPath);
  const filePaths = [];
  files.forEach(file => {
    const filePath = `${directoryPath}/${file}`;
    const stat = fs.statSync(filePath);
    if (stat.isFile()) {
      filePaths.push(filePath);
    } else if (stat.isDirectory()) {
      const subDirectoryPath = `${directoryPath}/${file}`;
      const subDirectoryFilePaths = getFilePaths(subDirectoryPath);
      filePaths.push(...subDirectoryFilePaths);
    }
  });
  return filePaths;
}
 
//getFilePaths('people')
 
function roundOff (number,decimalPlaces){
let roundedNumber=number.toFixed(decimalPlaces);
return JSON.parse(roundedNumber)}
 
function randomRange(min, max,decimalPlaces) {
if (decimalPlaces==undefined){decimalPlaces=0}
 
}
 
function safeSplice(inputArray, amountToRemove,indexToRemove,replaceWith) {
  let array1 = inputArray.slice(0, indexToRemove )
if (replaceWith!=undefined){
array1.push(replaceWith)}
  let array2 = inputArray.slice(indexToRemove + amountToRemove, inputArray.length)
  return array1.concat(array2)
}
 
// knuth shuffle from https://stackoverflow.com/questions/2450954/how-to-randomize-shuffle-a-javascript-array
 
function shuffle(array) {
  var currentIndex = array.length,  randomIndex;
  // While there remain elements to shuffle...
  while (currentIndex != 0) {
    // Pick a remaining element...
    randomIndex = Math.floor(Math.random() * currentIndex);
    currentIndex--;
    // And swap it with the current element.
    [array[currentIndex], array[randomIndex]] = [
      array[randomIndex], array[currentIndex]];
  }
  return array;
}
 
async function allPossibleImages (foreground, background, outputDirectory){
    console.time('imageGen')
    let foregroundPaths =  getFilePaths(foreground)
    let backgroundPaths =  getFilePaths(background)
    let foregroundImgs = foregroundPaths.map(path => Jimp.read(path));
    let backgroundImgs = backgroundPaths.map(path => Jimp.read(path));
    makeVariationDirectories(foregroundPaths, outputDirectory)
    console.log('none jimp parts done')
    //await matchAllForegroundToAllBackgrounds(foregroundImgs, backgroundImgs, foregroundPaths, backgroundPaths, outputDirectory)
    await matchAllForegroundToAllBackgroundsWithRotation(foregroundImgs, backgroundImgs, foregroundPaths, backgroundPaths, outputDirectory)
    console.timeEnd('imageGen')
 
}
 
function makeVariationDirectories (foreground, outputDirectory){
    fs.mkdirSync('./' + outputDirectory)
    foreground.forEach(x => {
        fs.mkdirSync('./' + outputDirectory + '/varitaions-' + getFileNameFromPath(x))
        fs.copyFileSync(x, './' + outputDirectory + '/' + 'varitaions-' + getFileNameFromPath(x) + '/originalImg')
    })
}
 
function getFileNameFromPath (path){
    return path.slice(path.lastIndexOf('/') + 1)
}
 
function matchAllForegroundToAllBackgrounds (foregroundImgs, backgroundImgs, foregroundPaths, backgroundPaths, outputDirectory){
    return Promise.all(foregroundImgs).then ((forePicture) => {
        return Promise.all(backgroundImgs).then ((backPicture) => {
            forePicture.forEach((x, n) => {
                backPicture.forEach((b, i) => {
                    console.log(n, i, './' + outputDirectory + '/varitaions-' + getFileNameFromPath(foregroundPaths[n]) + '/steve' + getFileNameFromPath(backgroundPaths[i]) + '-using background' + i + '.jpg')
                    x
                    .composite(b,0,0, {mode:Jimp.BLEND_DIFFERENCE})
                    .quality(97) // set JPEG quality
                    .write('./' + outputDirectory + '/varitaions-' + getFileNameFromPath(foregroundPaths[n]) + '/steve' + getFileNameFromPath(backgroundPaths[i]) + '-using background' + i + '.jpg'); 
                 })
            })
        })
        resolve(true)
    })
}
 
function matchAllForegroundToAllBackgroundsWithRotation (foregroundImgs, backgroundImgs, foregroundPaths, backgroundPaths, outputDirectory){
    return Promise.all(foregroundImgs).then ((forePicture) => {
        return Promise.all(backgroundImgs).then ((backPicture) => {
            forePicture.forEach((x, n) => {
                let currentForeground = getFileNameFromPath(foregroundPaths[n])
                backPicture.forEach((b, i) => {
                    let currentBackground = getFileNameFromPath(backgroundPaths[i])
                    for (let r = 0; r < 4; r++) {
                        console.log('r', r)
                    console.log(n, i, './' + outputDirectory + '/varitaions-' + currentForeground + '/steve' +  currentBackground + '-using background' + i + '-rotation' + (r * 90) + '.jpg')
                    x
                    .rotate(r * 90)
                    .composite(b,0,0, {mode:Jimp.BLEND_DIFFERENCE})
                    .quality(97) // set JPEG quality
                    .write('./' + outputDirectory + '/varitaions-' + currentForeground + '/steve' + currentBackground+ '-using background' + i + '-rotation'+ (r * 90) + '.jpg')
                    }
                 })
            })
        })
            resolve(true)
    })
}
 
allPossibleImages('multiple-blend-modes-input/more-forgrounds', 'multiple-blend-modes-input/backgrounds', 'rotated-10-testing-foreground-background')
 
endTime = new Date ()
 
//allPossibleImages('people', 'background', 'rotation-testing-foreground-background')
 
//only ingram and arduino uploaded to wiki:
 
filePath = './new-testing-foreground-background/varitaions-yiler.jpg'
 
filePath = './rotation-testing-foreground-background/varitaions-scott-and-bell.jpg'
 
 files = fs.readdirSync(filePath);
files.forEach( (file,i) =>{
        if (file[0]!='r'){
            fs.renameSync(filePath + '/' + file, filePath + '/' + 'steve-photo-of-not-roated-yiler-JIMP-generation' + i + '.jpg')
        }
    })
wikiString = ''
 files = fs.readdirSync(filePath);
files.forEach(x => {
    wikiString += '{{:students:' + x + '?400|}} \n'
})
fs.writeFileSync('wikiString.txt', wikiString)
 
let other = allFilePathsInDirectory('otherStuff')
 
async function resizeAllImages (pathArray){
    let jimpData = pathArray.map(path => Jimp.read(path));
    let readData;
    await Promise.all(jimpData).then ((pictures) => {readData = pictures})
    readData.forEach((x,i) => {
        if (x.bitmap.width > 400 && x.bitmap.height > 400){
            x.crop(0, 0, 400, 400).quality(98).write(pathArray[i])
        }
        else{
            x.resize(400,400).quality(98).write(pathArray[i])
        }
    })
}
 
resizeAllImages(classPaths)
 
function combinePhotos (pathArray, outputPath){
    let jimpData = pathArray.map(path => Jimp.read(path));
    Promise.all(jimpData).then ((picture) => {
              return picture[2]
                  .composite(picture[0],0,0, {mode:Jimp.BLEND_LIGHTEN})
                  .composite(picture[1],0,0, {mode:Jimp.BLEND_DIFFERENCE})
                   .autocrop()
                   .invert()
                .quality(97) // set JPEG quality
                .write(outputPath); 
     }).catch((err) => {console.error(err)})
}
 
let twoMangoes = [mangoPaths[0], mangoPaths[1]]
combinePhotos(mangoPaths,"./output-photos/shuffled-combined.jpg")
 
//Get all files: https://www.golinuxcloud.com/node-js-get-all-files-in-directory/
 
fs.readdir('classPhotos/', (err, files) => {
    console.log(files)
    files.forEach( (file,i) =>{
        if (file[0]!='c' && file[1] != 'h'){
            fs.renameSync('/home/steve/Documents/Code/picture-editing/classPhotos/'+file,'/home/steve/Documents/Code/picture-editing/classPhotos/'+'steve-class-photos-for-editing'+i+'.png')
        }
    })
})
 
console.time('counting')
total = 0
for (let i = 0; i < 10000000; i++) {
    total += Math.random()
}
console.log('total', total)
console.timeEnd('counting')
 
//no multi: 113.997ms