I want to find the losing of this picture

http://snag.gy/MfXoz.jpg I want to find the losing area of this picture,anybody have good idea? (just the losing area)

Answer 1

[Image Analyst]

I don't think that finding the missing (not "losing") paint regions can be done by visible color segmentation alone. Heck, I can't even tell where the missing paint regions are. You might have to use multispectral illumination. If you want to try using color segmentation, see my File Exchange for some methods. You might also try texture segmentation routines like stdfilt() and entropyfilt() in the Image Processing Toolbox.

[Jason]

Thank you for the answer,I will try it.

[Jason]

How can I use multispectral illumination?

[Image Analyst]

You have to use a multispectral camera. Try one that sees in the UV or IR or a multiple number of narrow visible bands.