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Index › Suggestions & Bugs › Website,  Documentation,  Book Bugs › Error in "Images and Pixels" section

Leshin YaBB Newbies Offline Posts: 1

Error in "Images and Pixels" section Jan 16th, 2010, 12:01pm   In the subsection "Intro To Image Processing", the piece of could: PImage img; void setup() {  size(200, 200);  img = loadImage("sunflower.jpg"); } void draw() {  loadPixels();  // Since we are going to access the image's pixels too    img.loadPixels();  for (int y = 0; y < height; y++) {    for (int x = 0; x < width; x++) {      int loc = x + y*width;            // The functions red(), green(), and blue() pull out the 3 color components from a pixel.      float r = red(img.pixels[loc]);      float g = green(img.pixels[loc]);      float b = blue(img.pixedls[loc];            // Image Processing would go here      // If we were to change the RGB values, we would do it here, before setting the pixel in the display window.            // Set the display pixel to the image pixel      pixels[loc] =  color(r,g,b);              }  }  updatePixels(); } Should be: PImage img; void setup() {  size(200, 200);  img = loadImage("sunflower.jpg"); } void draw() {  loadPixels();  // Since we are going to access the image's pixels too    img.loadPixels();  for (int y = 0; y < height; y++) {    for (int x = 0; x < width; x++) {      int loc = x + y*width;            // The functions red(), green(), and blue() pull out the 3 color components from a pixel.      float r = red(img.pixels[loc]);      float g = green(img.pixels[loc]);      float b = blue(img.pixels[loc]);            // Image Processing would go here      // If we were to change the RGB values, we would do it here, before setting the pixel in the display window.            // Set the display pixel to the image pixel      pixels[loc] =  color(r,g,b);              }  }  updatePixels(); }