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Topic: saveFrame() (Read 615 times) |
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aaron
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saveFrame()
« on: Apr 5th, 2004, 8:43pm » |
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Can this function be made to support file types other than TIFF and Targa? I would like to save frames as JPEGs or GIFs to keep file sizes down.
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TomC
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Re: saveFrame()
« Reply #2 on: Apr 14th, 2004, 11:42am » |
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I have code to save to PNG which works without using Java 1.4 ImageIO classes. It's not very well tested yet, but I think it works. You should get reasonable lossless compression on computer generated graphics.
Put http://www.tom-carden.co.uk/p5/PngEncoder.java in your sketch's code folder, and use the following code in your sketch to save to PNG.
Code:
String savePath = ""; // use "sketchbook/default/YOUR_SKETCH_NAME/data/" to save and load from the same directory
void savePNG(BImage img, String filename) {
PngEncoder encoder = new PngEncoder(img, true, 0, 9); // true means encode alpha, 0 means no filter, 9 means best compression
byte[] toWrite = encoder.pngEncode();
if (toWrite != null) {
if (!filename.toLowerCase().endsWith(".png")) {
filename += ".png";
}
saveBytes(savePath+filename, toWrite);
}
}
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The PngEncoder class is a cut-down version of the LGPL code here - http://catcode.com/pngencoder/
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| « Last Edit: Apr 14th, 2004, 11:45am by TomC » |
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Markavian
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Re: saveFrame()
« Reply #3 on: Apr 16th, 2004, 4:00pm » |
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So, will processing support these modes as 'default' in future versions? I can live with saving as TIFFs for the moment, not a problem.. but for future convinience?
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fry
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Re: saveFrame()
« Reply #4 on: Apr 16th, 2004, 5:45pm » |
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the plan is to support the fancier image i/o when it's available (java 1.4ish) through dynamic loading.. no estimate on when it's available tho..
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