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https://www.extremetech.com/article2/0,1558,1734385,00.asp
Added after 2 minutes:
https://en.wikipedia.org/wiki/Color_space
and the links..
Gamma Correction
Hi,
I would like to know about various aspects of gamma correction,
and in particular Dynamic Gamma Correction.
So if anybody has come across the topic, please provide me with some information or resource on it.
Thanks..
ok i got that.
now i have a problem with minutiae matching.
i have two maps now. a query map and template map. and for each minutiae, its spatial position and angle.
i referred to this.
it says align the second image with respect to a minutiae angle and distance. but what point in the second...
i tried laplacian and sobel, but it was not sucessful. so i moved on removing the whole edge detection process and towards ridge extraction. and to that end i am trying gabor now.
thanks, i got the browser plugin.
ya i got to develop my basics, ok, but yes i understand that pixel operations take local neighbourhood and if a window is used it is centered on every pixel. so this orientation operation is done similarly with determining the orientation angle for each and...
hi me2please, i downloaded the book u posted long back.
but was never able to find a djvu reader.
can u name some?? or any other way to open the file..
well, if you dont partition the image into blocks then how will you get the orientation map diagram as showed in the report of raymond thai. i am so confused.
yes, maybe i should refer to some books.
where are they actually??
ok i get it.
just one more thing, in equation 2.6, i.e. the orientation estimation equation, Vy is calculated by multiplying the squared terms of sobel gradients.
but in some papers i see that it is calculated by taking the difference of the squared sobel gradients,
so what to follow.
thanks...
ridge frequency estimation
Hi,
Can anyone help me out with the ridge frequency estimation in fingerprint images.
what is the procedure for doing it, i.e. equations involed.
and any inputs about gabor filters will be most helpful.
thanks for any help..
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