Education/Projects/ProcessingForTheWeb/PImage.get: Difference between revisions
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=== Examples === | === Examples === | ||
PImage pimg = new PImage(loadImage("fish.jpg")); <br /> | void setup() <br /> | ||
{<br /> | |||
size(250,200);<br /> | |||
background(0);<br /> | |||
}<br /> | |||
PImage pimg = new PImage(loadImage("fish.jpg"));<br /> | |||
PImage pimg2 = pimg.get(0,0,64,46);<br /> | PImage pimg2 = pimg.get(0,0,64,46);<br /> | ||
color c= pimg.get(120,0);<br /> | color c= pimg.get(120,0);<br /> | ||
fill(c);<br /> | fill(c);<br /> | ||
image(pimg,0,0);<br /> | void draw() <br /> | ||
rect(25, 25, 50, 50);<br /> | { <br /> | ||
image(pimg2,0,93);<br />[[File:PImageGet.jpg]] | image(pimg,0,0);<br /> | ||
rect(25, 25, 50, 50);<br /> | |||
image(pimg2,0,93);<br /> | |||
}<br /> | |||
[[File:PImageGet.jpg]] | |||
=== Syntax === | === Syntax === | ||
Revision as of 01:31, 28 November 2009
Summary
This is a method of the PImage class written for Education/Projects/ProcessingForTheWeb. Gets the color of a pixel, a group of pixels, or the entire image. View official Reference
Examples
void setup()
{
size(250,200);
background(0);
}
PImage pimg = new PImage(loadImage("fish.jpg"));
PImage pimg2 = pimg.get(0,0,64,46);
color c= pimg.get(120,0);
fill(c);
void draw()
{
image(pimg,0,0);
rect(25, 25, 50, 50);
image(pimg2,0,93);
}
Syntax
| Description | |
|---|---|
| img.get() | returns the entire image |
| img.get(x, y) | returns the color of a single pixel in the img pixels[y*width+x] |
| img.get(x, y, width, height) | returns 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. |
Parameters
| Description | |
|---|---|
| img | PImage |
| x | x-coordinate of the pixel |
| y | y-coordinate of the pixel |
| width | width of pixel rectangle to get |
| height | height of pixel rectangle to get |
Returns
color or PImage
Bugs
Refer to the reference of each function for a specific bug report.
| Bug Description | Fixed?(Date) |
|---|---|