Re: [WM]: perceptual model for images

[Micro Mysore <micromysore@gmail.com>]

Baris,
This may be a good point to start. Look for equations in the paper.

Christine I. Podilchuk, Wenjun Zeng. Image-Adaptive Watermarking Using Visual Models, IEEE Journal Selected Areas of Communications
(JSAC), May'98. Vol. 16 No. 4 1998. pp. 525-539.

Depending on the application, you can choose a quality metric. If you are looking see the perceptual quality after watermarking, you
might find this link helpful http://www.cns.nyu.edu/~lcv/ssim/

-ankapura


On 5/26/05, Baris UNAL <bunal@aselsan.com.tr> wrote:
> Dear Watermarkers,
> 
> I need to model human visual system (HVS).
> I used mean squre error (MSE) method to measure difference between the
>original image and watermatked image.
> However, it could not give accurate results.
> 
> Watson model gives better estimation.
> 
> Could you help me to find watson model implementations or any other
>perceptual models?
> 
> Thanks in advance for any responses.
> 
> Baris
>


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