| Class | PImage | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Name | get() |
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| Examples |  // @pjs preload must be used to preload the image
/* @pjs preload="tower.jpg"; */
PImage img = loadImage("tower.jpg");
background(img);
noStroke();
color c = img.get(60, 90);
fill(c);
rect(25, 25, 50, 50); // @pjs preload must be used to preload the image
/* @pjs preload="tower.jpg"; */
PImage img = loadImage("tower.jpg");
background(img);
PImage b = img.get(50, 0, 50, 100);
image(b, 0, 0); |
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| 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. 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]". Processing requires calling loadPixels() to load the display window data into the pixels[] array before getting the values. This function ignores imageMode(). |
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| Syntax | img.get() img.get(x,y) img.get(x,y,width,height) |
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| Parameters |
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| Returns | color or PImage | ||||||||||
| Usage | Web & Application | ||||||||||
| Related | set() pixels[] copy() |
This reference is licensed under the CC BY-NC-SA 2.0 license:
