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JPEG compression

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4.6 | 7 ratings Rate this file 41 Downloads (last 30 days) File Size: 478 KB File ID: #29374
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JPEG compression

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A program in order to see how the JPEG method works.

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Description

Look at the effects of JPEG compression on images, choosing between 8 compression levels, and obtain a comparison between uncompressed and compressed images. You can also generate the cosine transform of the compressed image.

MATLAB release MATLAB 7.7 (R2008b)
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Comments and Ratings (9)
10 Nov 2014 Pratiksha M N  
30 Dec 2011 mahmoud elhaddad

very good anna db
but
how can decoding this??

27 Nov 2011 Anton Semechko

Could be useful if the code was commented in English

28 Aug 2011 Anna DB

in this line you are declaring an inline function where the independent variable is "x". If i remember well you should call it writing fun(par) where par is your value, in this case a vector i suppose, because the formula looks like a matricial factorization.
the function will calculate T*par*T' :)

01 Jun 2011 krist

Thanks Anna DB.
Anyone tell me what this command do

fun=@(x)(T*x*T');

I'm newbie on Matlab and I need to understand this code...

23 May 2011 Anil Sharma

good

28 Dec 2010 ege yag  
28 Dec 2010 Foxy Seif Eddine

Well-done,it's very useful.

16 Nov 2010 Francesco Pizzo

good work!

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