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Reference for Processing (BETA) version 0135+. 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 | ### get()
Examples |
    PImage img = loadImage("tower.jpg");
    background(img);
    noStroke();
    color c = img.get(60, 90);
    fill(c);
    rect(25, 25, 50, 50);
    PImage img = loadImage("tower.jpg");
    background(img);
    PImage b = img.get(50, 0, 50, 100);
    image(b, 0, 0);
Description | Reads the color of any pixel or grabs a group of pixels. If no parameters are specified, the entire image is returned. Get the value of one pixel by specifying an x,y coordinate. Get a section of the display window by specifing an additional width and height parameter. If the pixel requested is outside of the image window, black is returned. The numbers returned are scaled according to the current color ranges, but only RGB values are returned by this function. Even though you may have drawn a shape with colorMode(HSB), the numbers returned will be in RGB. The imageMode() function changes the way the parameters work. For example, a call to imageMode(CORNERS) will change the width and height parameters to define the x and y values of the opposite corner of the image. Getting the color of a single pixel with get(x, y) is easy, but not as fast as grabbing the data directly from pixels[]. The equivalent statement to "get(x, y)" using pixels[] is "pixels[y*width+x]". The (BETA) version of Processing requires calling loadPixels() to load the display window data into the pixels[] array before getting the values.
Syntax |
    img.get()
    img.get(x, y)
    img.get(x, y, width, height)
Parameters |
img | PImage: any variable of type PImage
x | int: x-coordinate of the pixel
y | int: y-coordinate of the pixel
width | int: width of pixel rectangle to get
height | int: height of pixel rectangle to get
Usage | Web & Application
Related | set() pixels[] copy()

Updated on December 20, 2005 02:03:00pm PST