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Re: RGB -> Y


From: Sergei Steshenko
Subject: Re: RGB -> Y
Date: Wed, 23 Apr 2014 00:55:23 -0700 (PDT)







>________________________________
> From: Dincy Paul <address@hidden>
>To: Octave Help List <address@hidden> 
>Sent: Wednesday, April 23, 2014 10:34 AM
>Subject: 
> 
>
>
>Hi..
>How to convert an RGB image into a gray scale image . Please help.
>Regards
>Dincy
>
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>Help-octave mailing list
>address@hidden
>https://lists.gnu.org/mailman/listinfo/help-octave
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>

I suggest to start from here: 
https://en.wikipedia.org/wiki/Luminance_%28relative%29 , specifically, from

Y = 0.2126 * R + 0.7152 * G + 0.0722 * B;

formula.

Regards,
  Sergei.



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