Algoritmo base convolución

ppdlm.pde

/*

Little pleasures of the Mona / Pequeños placeres de la mona
Andrés Senn

andressenn.com/pequenos-placeres-de-la-mona/
Base algorithm
2018
Lic: CC 4.0 International

#Processing
*/

PImage mona_img = loadImage("mona.jpg");
PImage kandinsky_img = loadImage("kandinsky.jpg");
// Dos imagenes mismo tamaño / Two images same size

int offset_noise_x = 2000;
int offset_noise_y = 20000;

for (int x = 0; x < mona_img.width; x++) {
    for (int y = 0; y < mona_img.height; y++) {
        float noise = noise((x-offset_noise_x)*0.001, (y-offset_noise_y)*0.002);
        int index = x + y * mona_img.width;
        
        // Valores de la imagen kandinsky / Kandinsky image values
        int xx = int(map(brightness(kandinsky_img.pixels[index] >> 16 & 0xFF), 0, 255, 0, m));
        int yy = int(map(brightness(kandinsky_img.pixels[index] >> 8 & 0xFF), 0, 255, 0, m));
        
        // Nueva posicion de los pixeles / New pixels position
        int newx = int(x+xx*(cos(TWO_PI * noise*2)));
        int newy = int(y+yy*(sin(TWO_PI * noise*2)));
        
        // Nuevo indice / New index
        int index2 = newx + newy * mona_img.width;
        index2 = int(abs(index2 % mona_img.pixels.length));
        
        // Set pixels
        set(x, y, mona_img.pixels[index2]);
    }
}