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Index › Programming Questions & Help › Programs › BufferedImage > PImage
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BufferedImage > PImage (Read 1341 times)
william
BufferedImage > PImage
Jul 21st, 2006, 8:15am  
Is there an easy way to convert a java.awt.image.BufferedImage or Raster object into PImage?

Thanks!
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dariosnd
Re: BufferedImage > PImage
Reply #1 - Jul 21st, 2006, 9:40am  
Try this:

raster.getPixels(0, 0, pimage.width, pimage.height, pimg.pixels);
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william
Re: BufferedImage > PImage
Reply #2 - Jul 23rd, 2006, 7:22am  
I can't seem to get this to work (getting a ArrayIndexOutofBoundsException)...

I suspect it's because the SampleModel is not compatible - Any suggestions?
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dariosnd
Re: BufferedImage > PImage
Reply #3 - Jul 24th, 2006, 4:25pm  
Have you allocated the pixels array?
I mean this:

PImage pimage = new PImage();
pimage.width = width;
pimage.height = height;
pimage.pixels = new int[width * height];

or just

PImage pimage = new PImage(width, height);

where width and height are the dimensions of your raster.


I don't think there can be problems with the sample model. If you pass an array of ints to getPixels, it just fills it with ints, an element for each element of the Raster. The same thing with an array of floats or doubles. If the dimensions of the arrays correspond the colors can be altered but there shouldn't be exceptions.
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william
Re: BufferedImage > PImage
Reply #4 - Jul 28th, 2006, 10:29am  
It's probably something crazy I did, but... I tried this and still getting an ArrayIndexOutOfBound exception.

------------
//(src is a WritableRaster)

PImage pimage = new PImage();
pimage.width = src.getWidth();
pimage.height = src.getHeight();
pimage.pixels = new int[src.getWidth() * src.getWidth()];
       
loadPixels();
pimage.pixels = src.getPixels(0, 0, pimage.width, pimage.height, pimage.pixels);
updatePixels();
------------

If I do something like this, it would work (but probably not very efficient)...

-----------------
for (int i=0; i<src.getWidth(); i++ ) {
    for (int j=0; j<src.getHeight(); j++ ) {

               int sum = 0;
               int numBands = src.getNumBands();
               int[] c = new int[numBands];
               for (int k=0; k<numBands; k++) {
                   int p = src.getSample(i,j, k);
                   c[k] = p;
               }

               img.set(i, j, color( c[0], c[1], c[2] ));
     }
}
------------------
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fry
Re: BufferedImage > PImage
Reply #5 - Jul 28th, 2006, 3:03pm  
PImage pimage = new PImage(src);
should be all you need.
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