Problem splitting an image into several pieces

Programming Questions

jcarlosma..

Problem splitting an image into several pieces

in Programming Questions • 10 months ago

Hi,

I am trying to split an image previously loaded into four different ones to be able to move them freely in the screen, but when I try to assign the pixels values of the original image to the new created one, I get an error saying "ArrayIndexOutOfBoundsException", here is the piece of code:

.......

imagen.loadPixels();

trozo[0].loadPixels();

for(y=0;y<trozo[0].height;y++)

for(x=0;x<trozo[0].width;x++){

loc=x+y*trozo[0].width;

trozo[0].pixels[loc]=imagen.pixels[loc]; //copio pixels

}

trozo[0].updatePixels();

.......

Image is the original image, while trozo[0] is the first piece I want to create, Can anyone please help?

Thanks and brgds,

Replies(2)

amnon.owed

Re: Problem splitting an image into several pieces

10 months ago

Here it's probably easier to just use get. Press the mouse to display the next segment.

Code Example

PImage img = loadImage("http://gallery.photo.net/photo/8920862-lg.jpg");
PImage[] segments = new PImage[4];
int currentImage;
void setup() {
size(img.width, img.height);
segments[0] = img.get(0,0,img.width/2,img.height/2);
segments[1] = img.get(img.width/2,0,img.width/2,img.height/2);
segments[2] = img.get(0,img.height/2,img.width/2,img.height/2);
segments[3] = img.get(img.width/2,img.height/2,img.width/2,img.height/2);
}
void draw() {
image(img, 0, 0);
image(segments[currentImage%segments.length], mouseX, mouseY);
}
void mousePressed() {
currentImage++;
}

jcarlosma..

Re: Problem splitting an image into several pieces

10 months ago

You´re right, thanks a lot Amnon

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