Add crumpled/wrinkled paper

Also bettering lightning gradient

benchmark/generate.js

@@ -107,6 +107,20 @@ function randomizeOption (i, cb) {
  )
  }
 
+ // 20% has some crumpled effect
+ if (shouldAdd(0.2)) {
+ promises.push(new Promise(function (resolve, reject) {
+ randomWrinkleDistortion(i + 1, function (err, filename) {
+ if (err) return reject(err)
+
+ resolve({
+ wrinkles: filename
+ })
+ })
+ })
+ )
+ }
+
  Promise.all(promises).then(function (array) {
  // Combine all the options together
  var options = array[0]
@@ -150,15 +164,28 @@ function biasedWave () {
 }
 
 function randomGradientLightning (number, cb) {
- var min = 0.4
- var max = 0.8
- var random = rand.random() * (max - min) + min
- var value = 255 * random
- var filename = path.join(destDir, `gradient-${number}.jpg`)
+ var randomHigh = rand.random() * (0.9 - 0.4) + 0.4
+ var randomLow = rand.random() * 0.4
+ var high = 255 * randomHigh
+ var low = 255 * randomLow
+ var filename = path.join(destDir, `gradient-lightning-map-${number}.jpg`)
+
+ gm(1500, 1500)
+ .in(`gradient:rgb(${high}, ${high}, ${high})-rgb(${low}, ${low}, ${low})`)
+ .write(filename, function (err) {
+ cb(err, filename)
+ })
+}
 
- gm(1500, 1500).in(`gradient:rgb(${value}, ${value}, ${value})-rgb(0, 0, 0)`).write(filename, function (err) {
- cb(err, filename)
- })
+function randomWrinkleDistortion (number, cb) {
+ var filename = path.join(destDir, `wrinkles-map-${number}.jpg`)
+ gm(1500, 1500)
+ .in('-seed', rand.intBetween(0, 2147483647))
+ .in('plasma:white-white')
+ .colorspace('gray')
+ .write(filename, function (err) {
+ cb(err, filename)
+ })
 }
 
 // From http://stackoverflow.com/a/29325222/939535
@@ -174,12 +201,29 @@ function renderHTMLPage () {
 }
 
 function processStream (stream, out, options, cb) {
+ var newStream
  var imagemagick = gm(stream)
  // Setting up green as the transparent color
  imagemagick.transparent('green').background('green')
 
  if (options.paperWashout) imagemagick.level(options.paperWashout.join(',')) // Washout the paper
  if (options.photoGamma) imagemagick.level(options.photoGamma.join(',')) // Washout the photo
+
+ // Add crumpled/wrinkled paper effect
+ if (options.wrinkles) {
+ newStream = imagemagick.stream('jpg')
+ imagemagick = gm(newStream)
+ newStream = imagemagick
+ .compose('displace')
+ .displace(20, 20)
+ .composite(options.wrinkles).stream('jpg')
+ imagemagick = gm(newStream)
+ newStream = imagemagick
+ .compose('Linear_Burn')
+ .composite(options.wrinkles).stream('jpg')
+ imagemagick = gm(newStream)
+ }
+
  if (options.implode) imagemagick.implode(options.implode)
  if (options.wave) imagemagick.wave(options.wave[0], options.wave[1])
  if (options.rotate) imagemagick.rotate('green', options.rotate)
@@ -189,7 +233,7 @@ function processStream (stream, out, options, cb) {
 
  // Add gradient lightning
  if (options.gradient) {
- var newStream = imagemagick.stream('jpg')
+ newStream = imagemagick.stream('jpg')
  imagemagick = gm(newStream)
  imagemagick.compose('hardlight').composite(options.gradient)
  }
@@ -220,7 +264,7 @@ program
  .usage('[options]')
  .option('-a, --amount <n>', 'Number of images')
  .option('-s, --seed <n>', 'Seed for psuedo random generation')
- .option('-d, --disable [modifiers]', `Disable modifiers (e.g. ${['rotate', 'paperWashout', 'photoGamma', 'implode', 'wave', 'gradient'].join(', ')})`)
+ .option('-d, --disable [modifiers]', `Disable modifiers (e.g. ${['rotate', 'paperWashout', 'photoGamma', 'implode', 'wave', 'gradient', 'wrinkles'].join(', ')})`)
  .parse(process.argv)
 
 generate({ number: program.amount, seed: program.seed, disabledModifiers: (program.disable || '').split(',') })