Author Topic: [IMPOSSIBLE] Record only Luminance Values for true Black & White pictures  (Read 3687 times)

scriabinisblackmass

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The title says it all, for true black & white pictures, like each luminance value for each pixel!

So we could avoid algorithms to transform a colored picture to a B&W one, I guess it would add quality/sharpness to pictures!

A RAW file only with luminance values!

Indy

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Re: Record only Luminance Values for true Black & White pictures
« Reply #1 on: March 21, 2013, 10:43:26 PM »
RAW are RGBG values (CFA), SRAW YUV

scriabinisblackmass

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Re: Record only Luminance Values for true Black & White pictures
« Reply #2 on: March 21, 2013, 10:59:50 PM »
But also doesn't it store luminance values also? I mean, some way of recording only the luminance values! :) Or is there a way to do it in the post processing?

I was inspired by this: http://www.bhphotovideo.com/c/product/860536-REG/Leica_10760_M_Monochrom_Black_and.html

The Leica Monochrom! :)

eduperez

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Cameras have a Bayer filter in front of the sensor (that monochrome Leicas lack), so each photosite receives only light from one part of the spectrum (color); you would need to remove such filter, and that cannot by done by software.

nanomad

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Re: Record only Luminance Values for true Black & White pictures
« Reply #4 on: March 22, 2013, 12:35:26 PM »
But also doesn't it store luminance values also? I mean, some way of recording only the luminance values! :) Or is there a way to do it in the post processing?

I was inspired by this: http://www.bhphotovideo.com/c/product/860536-REG/Leica_10760_M_Monochrom_Black_and.html

The Leica Monochrom! :)

You can convert between RGB(A) and YUV back and forth all day long, http://en.wikipedia.org/wiki/YUV#Conversion_to.2Ffrom_RGB
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