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 Post subject: jpeg encoding
PostPosted: Wed May 18, 2011 7:11 pm 
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Joined: Wed May 18, 2011 7:03 pm
Posts: 4
Hi,
Does anyone of You know simple jpeg compression library that I could use in my project on at91sam9260? I want to receive images from digital sensor connected by ISI interface and then write it on SD card. The point is that before I write image on SD card I want to compress it to jpeg format.
My program is standalone (I don't use any OS).
Thanks for Your answers.


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 Post subject: Re: jpeg encoding
PostPosted: Wed May 18, 2011 7:23 pm 
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Joined: Tue Jan 11, 2011 9:34 am
Posts: 9
How are you writing the images to the SD card currently?

OAC


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 Post subject: Re: jpeg encoding
PostPosted: Wed May 18, 2011 7:34 pm 
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Joined: Wed May 18, 2011 7:03 pm
Posts: 4
There is no problem to write them in bmp format using fatfs library and mci pheripheral.
Point is how to compress them to jpeg.


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 Post subject: Re: jpeg encoding
PostPosted: Wed May 18, 2011 7:54 pm 
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Joined: Tue Jan 11, 2011 9:34 am
Posts: 9
yes, well I just wanted to double check...

First hit on GOOGLE for 'arm embedded jpg codec library'

http://processors.wiki.ti.com/index.php ... rce_Codecs


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 Post subject: Re: jpeg encoding
PostPosted: Wed May 18, 2011 8:25 pm 
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Joined: Wed May 18, 2011 7:03 pm
Posts: 4
canat91
Well canat91 thanks for Your help, but I already found that library.
It isn't easy to use and it consists about 100 files.
I was looking for something more user-friendly.

I found very easy and good library to jpeg decompression in just 2 files but still nothing to compress.


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 Post subject: Re: jpeg encoding
PostPosted: Fri May 20, 2011 1:39 am 
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Joined: Fri Feb 13, 2004 7:53 pm
Posts: 329
Hi, have a look into the SAM3S-EK Software Package on ATMEL web site.
There is a lib jpeg example supporting compression :D

Regards.

Patrick


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 Post subject: Re: jpeg encoding
PostPosted: Mon May 23, 2011 7:59 pm 
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Joined: Wed May 18, 2011 7:03 pm
Posts: 4
Thanks a lot.


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