image compression

Started by "amelie.quinet" April 5, 2006
Hi,

I m working on image compression for my final training course. I am
asked to compress the images 1600*1200 the most I can with the less
loss I can...

I am working with matlab, and trying to understand jpeg and jpeg2000.

In fact my boss wants me to use jpeg2000 but EBCOT is very difficult.
So i wanted to know, what makes jpeg2000 so different from jepg except
DWT ? And what can I add in jpeg algo to improve the results, thats to
say, the ratio and the loss ? (I don't want to use jpeg with no loss).
I know it s not a very technical question but I hope sbdy will have
answers for me.

Thanx
hi all,
>
> i badly need a souce code in c for dct image compression , can any send it .
>
> thanks in advance
>
> warm regards
> prathima
Hi prathima,
which image compression standard you follow ?... i am also doing JPEG image compression standard.but i am going to implement in VLSI.i have a whole C++ code for JPEG encoder.how can i send to you?

with regards
Inian Thavamani
I have the code for DCT image compression and Decompression
using Matlab.

My email Id is b...@arithos.com

Regards
Bharat
From: i...@ymail.com
Sent: Friday, January 30, 2009 6:40 PM
To: i...
Subject: [imagedsp] Re: image compression

hi all,
>
> i badly need a souce code in c for dct image compression , can any send it .
>
> thanks in advance
>
> warm regards
> prathima
Hi prathima,
which image compression standard you follow ?... i am also doing JPEG image compression standard.but i am going to implement in VLSI.i have a whole C++ code for JPEG encoder.how can i send to you?

with regards
Inian Thavamani
I have the code for DCT image compression and Decompression
using Matlab.

My email Id is b...@arithos.com

Regards
Bharat
From: i...@ymail.com
Sent: Friday, January 30, 2009 6:40 PM
To: i...
Subject: [imagedsp] Re: image compression

hi all,
>
> i badly need a souce code in c for dct image compression , can any send it .
>
> thanks in advance
>
> warm regards
> prathima
Hi prathima,
which image compression standard you follow ?... i am also doing JPEG image compression standard.but i am going to implement in VLSI.i have a whole C++ code for JPEG encoder.how can i send to you?

with regards
Inian Thavamani
hi all,
>
> i badly need a souce code in c for dct image compression , can any send it .
>
> thanks in advance
>
> warm regards
> prathima
Hi prathima,
which image compression standard you follow ?... i am also doing JPEG image compression standard.but i am going to implement in VLSI.i have a whole C++ code for JPEG encoder.how can i send to you?

with regards
Inian Thavamani
Hi,

I m working on image compression for my final training course. I am
asked to compress the images 1600*1200 the most I can with the less
loss I can...

I am working with matlab, and trying to understand jpeg and jpeg2000.

In fact my boss wants me to use jpeg2000 but EBCOT is very difficult.
So i wanted to know, what makes jpeg2000 so different from jepg except
DWT ? And what can I add in jpeg algo to improve the results, thats to
say, the ratio and the loss ? (I don't want to use jpeg with no loss).
I know it s not a very technical question but I hope sbdy will have
answers for me.

Thanx