Hi Sara, 

the compression ratio of any JPEG encoder always depends on the desired 
image quality. Because JPEG is a lossy coding, the more loss you you 
accept the higher the compression. Further, the compression depends on the 
image itself. A complete black or white input image will give you very 
high compression ratios while a very complex image will be compressed much 
less (unless you set the quality factor that low that the resulting coded 
image is again just a single uniform color.....). 

So, this forum is not the right place to ask such question. Get a text 
book about image coding or something like this. 

Regards, 

Peter 

On Tue, 4 Mar 2008, Saravanan S wrote:

> Hi,
>  
> What could be the least/highest compression ration we can get in JPEG
> encoder?
>  
> Thanks,
> SARA
>  
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf Of Saravanan S
> Sent: Tuesday, March 04, 2008 5:56 PM
> To: [email protected]
> Subject: compression ratio of JPEG encoder
>  
> Hi,
>  
> What is the compression ratio of TI Released JPEG encoder? How do we
> calculate this?
>  
> Regards,
> SARA
> 


|       Peter Wippich                   Voice: +49 30 46776411          |
|       G&W Instruments GmbH            fax:   +49 30 46776419          |
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