Image Compression Using Wavelets

Compression using wavelet transform which give better reconstruction.

Description

Image compression using wavelet transform

 *wavelet transform give better information about non-stationary signals in time domain

• Required Products: Image Processing Toolbox
• MATLAB release: MATLAB 6.1 (R12.1)

[Vishal Raj]

 Nice code.But needs correct image file to be present in order for the code to work.But still good job.

[Omar Sharif]

good....but should be more flexible

[samir soni]

 

[jay nasir]

nice program...can i ask...what the type of image that u used?what size?what is the correst image?

[MALIKARJUN DIQDIOP]

IT IS EXCELLENT

[vk singh]

good work shared

[dinesh yadav]

vary good work
go ahed

[jeyavim sherin]

good work shared

[swati reddy]

 

[raj malhotra]

nice proj n very easy to understand

[Rafael B]

It's a very nice project which helps to understand the different steps to compress an image with wavelets. Anyways I think some things do not make sense.

Line 58: It makes no sense to give thr as input to the WPDENCMP function, the input has to be the wavelet coefficients, they have to be thresholded

Line 68: The input for the wavelet inverse transformation is the original coefficient array c, which hasn't be altered, that means we just do a transformation and then an inverse transformation, no compression has been done. (therefore max(max(abs(re_ima-input_image))) = 0;)

Anyways....very good for basic understanding!

[Essaki Muthu P]

This is a good try, but it is not working with jpg files

[suvendu choudhury]

 

[raju chimmi]

 

[indra kandaswamy]

 

[srinivassharma akella]

 

[mahendra patel]

very good

[sure geo]

 

[subathra suba]

 

[dyf ejee]

fdjdfdvfm

[kartik srinivasan]

very good.

[iyyakutti iyappan]

nice program

[alagappan Palaniappan]

thanks a lot

[angad sahni]

nice program.
 

[nur adibah]

hi...just wanna ask,what the size of original image and image after compression??and image after compression in which type of file??