DanPixelSortVariant.pde

/* ASDFPixelSort for video frames v1.0
Original ASDFPixelSort by Kim Asendorf <http://kimasendorf.com>
https://github.com/kimasendorf/ASDFPixelSort
Fork by dx <http://dequis.org> and chinatsu <http://360nosco.pe>
Randomization modifications by Dan-O
-- Usage:
1. Split a video into a series of pictures with ffmpeg:
  $ ffmpeg -i "input.mov" -an -f image2 "frame_%06d.png"
2. Change `String basedir` in this script to point to where the images are located.
3. Tweak things, that's what's most fun, isn't it?
-- Notes:
When joining the images back into video, you'll probably want to know what the framerate of the original video is. 
Example command with reasonable quality:
  $ ffmpeg -f image2 -r ntsc -i "frame_%06d.png" -c:v libx264 -preset slow "frames.mkv"
*/

// Main configuration
String basedir = "/volumes/Kamala/Tech Tests/Process/RAW-JPG-Pixelsort/"; // Specify the directory in which the frames are located. Use forward slashes.
String fileext = ".jpg"; // Change to the format your images are in.
int resumeprocess = 0; // If you wish to resume a previously stopped process, change this value.

int mode = 1; // MODE: 0 = black, 1 = bright, 2 = white
int blackValue = -10000000;
int brightnessValue = 80;
int whiteValue = -6000000;
// -------

PImage img;
PImage initimg;
String[] filenames;
int row = 0;
int column = 0;
int i = 0;
java.io.File folder = new java.io.File(dataPath(basedir));
java.io.FilenameFilter extfilter = new java.io.FilenameFilter() {
  boolean accept(File dir, String name) {
    return name.toLowerCase().endsWith(fileext);
  }
};

void setup() {
  frameCount = 0;
  if (resumeprocess > 0) {frameCount = resumeprocess - 1;}
  filenames = folder.list(extfilter);
  initimg = loadImage(basedir+"/"+filenames[0]);
  size(initimg.width, initimg.height); // Takes the size of the first image in the folder.
  import java.util.Random;
}

void draw() {
  // you want to call the function here
  brightnessValue = brightnessValue + randInt(-1, 1);
  if (i +1 > filenames.length) {println("Uh.. Done!"); System.exit(0);}
  row = 0;
  column = 0;
  img = loadImage(basedir+"/"+filenames[i]);
  image(img,0,0);
  while(column < width-1) {
    img.loadPixels(); 
    sortColumn();
    column++;
    img.updatePixels();
  }
  
  while(row < height-1) {
    img.loadPixels(); 
    sortRow();
    row++;
    img.updatePixels();
  }
  image(img,0,0);
  saveFrame(basedir+"/out/"+filenames[i]);
  println("Frames processed: "+frameCount+"/"+filenames.length);
  println("Brightness: "+brightnessValue);
  i++;
}

// we want to make a callable function here
// static means constant I don't think needs to be used
// unsure if this is a public or private function
public int randInt(min, max) {
    Random rand = new Random();
    int randomNum = rand.nextInt((max - min) + 1) + min;
    return randomNum;
}

/* Everything below that is the actual image processing script and irrelevant to the problem