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Main Forums => Homework Help => Topic started by: yaya71 on April 11, 2011, 02:35:40 PM

Title: Image processing
Post by: yaya71 on April 11, 2011, 02:35:40 PM: Hi,

i need Matlab code for Gray world and White point (white balance)...

Can somebody help?
Title: Re: Image processing
Post by: Min on April 11, 2011, 02:37:55 PM: Not me. I don't even know what those words mean when you string them together.
Title: Re: Image processing
Post by: Novice on April 11, 2011, 02:43:20 PM: Duh, Detta. :roll:
Title: Re: Image processing
Post by: yaya71 on April 11, 2011, 02:49:23 PM: Gray World
The gray world algorithm assumes that given an image of sufficiently varied colors, the average surface color in a
scene is gray.1 This means that the shift from gray of the measured averages on the three channels corresponds to
the color of the illuminant. Three scaling coefficients, one for each color channel, are therefore set to compensate
this shift.
White Point
Assuming that there is always some white in the scene, the white point algorithm looks for it in the image; its
chromaticity will then be the chromaticity of the illuminant. The white point algorithm determines this white as
the maximum R, maximum G and maximum B found in the image.2, 3 The scaling coefficients are now obtained
by comparing these maxima with the values of the white of the reference illuminant.
Title: Re: Image processing
Post by: Novice on April 11, 2011, 02:51:03 PM: Hey! Quit moving your posts around. Now mine doesn't make sense!
Title: Re: Image processing
Post by: Min on April 11, 2011, 04:20:13 PM: lol.
Title: Re: Image processing
Post by: ivan on April 11, 2011, 05:32:01 PM: Quote from: Novice on April 11, 2011, 02:51:03 PM
Hey! Quit moving your posts around. Now mine doesn't make sense!

Made sense to me!

Also, I can't believe yaya0 through yaya70 were taken. THOSE FUCKERS!
Title: Re: Image processing
Post by: ivan on April 11, 2011, 05:36:40 PM: Quote from: yaya71 on April 11, 2011, 02:35:40 PM
Hi,

i need Matlab code for Gray world and White point (white balance)...

Can somebody help?

Here it is in binary:

010110010100000101011001010000010011011100110001001000000100100101010011001000000100000100100000010100100101010101000100010001010010000001001001010011100100001101001111010011100101001101001001010001000100010101010010010000010101010001000101001000000100010001001001010100100101010001000010010000010100011100100000010101110100100001001111001000000100010001001001010001000010000001001110010011110101010000100000010100100100010101000001010001000010000001010100010010000100010100100000010101000100111101010011001011000010000001001111010100100010110000100000010000110100111101001110010101100100010101010010010100110100010101001100010110010010110000100000010010000100000101010110010010010100111001000111001000000101001001000101010000010100010000100000010010010101010000101100001000000101000001010101010100100101000001001111010100110100010101001100010110010010000001000001010011100100010000100000010000100101001001000001010110100100010101001110010011000101100100100000010001000100100101010011010100100100010101000111010000010101001001000100010001010100010000100000010010010101010000101110001000000010000001011001010000010101100101000001001101110011000100100000010010010101001100100000010000010010000001010010010101010100010001000101001000000100100101001110010000110100111101001110010100110100100101000100010001010101001001000001010101000100010100100000010001000100100101010010010101000100001001000001010001110010000001010111010010000100111100100000010001000100100101000100001000000100111001001111010101000010000001010010010001010100000101000100001000000101010001001000010001010010000001010100010011110101001100101100001000000100111101010010001011000010000001000011010011110100111001010110010001010101001001010011010001010100110001011001001011000010000001001000010000010101011001001001010011100100011100100000010100100100010101000001010001000010000001001001010101000010110000100000010100000101010101010010010100000100111101010011010001010100110001011001001000000100000101001110010001000010000001000010010100100100000101011010010001010100111001001100010110010010000001000100010010010101001101010010010001010100011101000001010100100100010001000101010001000010000001001001010101000010111000100000001000000101010001001000010001010101001001000101001011000010000001001001001000000101001101000001010010010100010000100000010010010101010000100000001100010011000000100000010101000100100101001101010001010101001100101110
Title: Re: Image processing
Post by: ivan on April 11, 2011, 05:43:20 PM: Here's some further methodology:

Tehnologija se Livanjskog sira tijekom stoljetnog razdoblja mijenjala, odnosno prilagođavala, prvenstveno tehničkim mogućnostima i novostima. Dok je u domaćinstvima još zadržan tradicionalni način proizvodnje sira, u sirani su uvedena određena suvremena rješenja kojima je bila svrha poboljšati i ujednačiti kakvoću sira, odnosno povećati i racionalizirati kapacitete i olakšati rad. Tako se Livanjski sir iz livanjske sirane danas proizvodi isključivo od pasteriziranog i baktofugiranog kravljeg mlijeka uz upotrebu liofilizirane mljekarske kulture. Ranije se u industrijskoj proizvodnji koristila sirutkina kultura. Sir u domaćinstvima, naprotiv, još uvijek se proizvodi od sirovog mlijeka, bez dodatka kultura.
Title: Re: Image processing
Post by: Demosthenes on April 11, 2011, 06:40:24 PM: Quote from: yaya71 on April 11, 2011, 02:35:40 PM
Hi,

i need Matlab code for Gray world and White point (white balance)...

Can somebody help?

LOL, I read that as "i need Meatlab code...".

:lol:

Quote from: yaya71 on April 11, 2011, 02:49:23 PM
Gray World
The gray world algorithm assumes that given an image of sufficiently varied colors, the average surface color in a
scene is gray.1 This means that the shift from gray of the measured averages on the three channels corresponds to
the color of the illuminant. Three scaling coefficients, one for each color channel, are therefore set to compensate
this shift.
White Point
Assuming that there is always some white in the scene, the white point algorithm looks for it in the image; its
chromaticity will then be the chromaticity of the illuminant. The white point algorithm determines this white as
the maximum R, maximum G and maximum B found in the image.2, 3 The scaling coefficients are now obtained
by comparing these maxima with the values of the white of the reference illuminant.

You're totally making this up, aren't you.
Title: Re: Image processing
Post by: pbsaurus on April 11, 2011, 06:49:31 PM: Fucking meatlabs. How do they work?
Title: Re: Image processing
Post by: Demosthenes on April 11, 2011, 07:32:58 PM: HECTAR
Title: Re: Image processing
Post by: Min on April 11, 2011, 09:22:41 PM: Quote from: ivan on April 11, 2011, 05:32:01 PM
Also, I can't believe yaya0 through yaya70 were taken. THOSE FUCKERS!

I hope this is the one that can tell us the divine secrets.
Title: Re: Image processing
Post by: Jaepheth on April 24, 2011, 04:20:13 AM: Quote from: pbsaurus on April 11, 2011, 06:49:31 PM
Fucking meatlabs. How do they work?

Stem cells, mostly.