matt_law
asked on
JPEG image manipulation and streaming
I've got to do the following -
1. load an image from a jpeg source
2. plot some points on it, circles; maybe boxes and text later
3. stream the result to file and/or a HTTP response for a servlet
Now, I should really work it out for myself, and the streaming part I've done before. It's the loading and drawing on that has me stumped. I've not done too much image work before and I'm not sure of the best approach.
all tips, pointers etc welcome. thanks.
> 1. load an image from a jpeg source
Load the jpeg file into an Image using getImage().
> 2. plot some points on it, circles; maybe boxes and text later
Graphics g = image.getGraphics();
g.drawRect(10, 10, 30, 30);
g.drawString("Some text", 20, 20);
Load the jpeg file into an Image using getImage().
> 2. plot some points on it, circles; maybe boxes and text later
Graphics g = image.getGraphics();
g.drawRect(10, 10, 30, 30);
g.drawString("Some text", 20, 20);
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thanks CEHJ - just what I was looking for, and as I suspected quite simple in the end.
Its for a GPS mapping project - interesting stuff but with an 'tough' deadline so I hadn't really got the time to play around and learn another API in my own time, needed a little boost in the right direction ;)
Its for a GPS mapping project - interesting stuff but with an 'tough' deadline so I hadn't really got the time to play around and learn another API in my own time, needed a little boost in the right direction ;)
8-)
I would suggest using Java Advanced Imaging API. Have a look here for tutorial and samples code:
http://java.sun.com/developer/releases/jai/
Hope it helps! Good luck!