PImage::loadPixels() \ Language (API) \ Processing 1.0
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Reference for Processing version 1.0+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
Class
PImage
Name
loadPixels()
Examples
int halfImage = width*height/2;
PImage myImage = loadImage("topanga.jpg");
myImage.loadPixels();
for (int i = 0; i < halfImage; i++) {
myImage.pixels[i+halfImage] = pixels[i];
}
myImage.updatePixels();
image(myImage, 0, 0);
Description
Loads the pixel data for the image into its pixels[] array. This function must always be called before reading from or writing to pixels[].
Certain renderers may or may not seem to require loadPixels() or updatePixels(). However, the rule is that any time you want to manipulate the pixels[] array, you must first call loadPixels(), and after changes have been made, call updatePixels(). Even if the renderer may not seem to use this function in the current Processing release, this will always be subject to change.
Syntax
img.loadPixels()
Parameters
img
any variable of type PImage
Usage
Web & Application
Updated on November 22, 2008 08:39:25pm PST
Processing was initiated by Ben Fry and Casey Reas. It is developed by a small team of volunteers.
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