Why this code not working

[maakin]

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();
}

[InferNova]

Hey There!

Currently not at the pc but can you use loadPixels with the img like that ?

https://processing.org/reference/loadPixels_.html

[Chrisir]

what happens and what do you want it to happen instead?

E.g. you don’t change r,g,b so nothing happens of course. Do you mean this?

[maakin]

Why that error coming…,…,

[Chrisir]

check the image name …

does the file exist in the data folder ?

is it JPG or jpg?