jpeg2000 compression algorithm for microcontrollers

tayoboy · Joined: 19 Mar 2010 Posts: 4

Please I am working on implementation of jpeg2000 in microcontrollers, PICs to be specific. I need a working code, I have tried jasper, seems not compatible with pics. Thank you.

bkamen · Posted: Fri Mar 19, 2010 3:45 pm

So use that as an example to craft your own version for the PIC?

-Ben
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tayoboy · Joined: 19 Mar 2010 Posts: 4

my good friends what am really trying to do to write a program that can store pictures in pic microcontroller so as to be able to us it for diffrent application in electronics but not seen any working code for it

mbradley · Joined: 11 Jul 2009 Posts: 118 Location: California, USA

Just my 2 cents, not enough space inside a pic, rom, maybe, but not really a robust solution.

Connect a pic to a SD card, and much better robust solution.

If you are storing jpg's, then they are already compressed, so just copy the data.

Unless you are taking a raw image, and need to convert it, then the compression comes in.
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Michael Bradley
www.mculabs.com
Open Drivers and Projects

Ttelmah · Joined: 11 Mar 2010 Posts: 19516

Seriously, I doubt if you will find anyone wasting their time trying to do this....

Even on the latter large PICs, this will use almost all the available ROM, and (of course), you would need a lot more RAM than the PICs handle. The performance would be frankly appalling.

The PIC, just is not really 'up' to this sort of work.

It might well be practical on the largest of the DSPIC family, but the cost of development, would be so much higher, than just adding a hardware jpg converter chip, that I'd doubt if anyone has bothered, or if they have, it'll be for a commercial application, and as such 'not distributed'.

Best Wishes

bkamen · Posted: Sun Mar 21, 2010 11:45 am