RE:

[John Guin]

Is there a reason you would not use rgb2gray ?

Help rgbgray


John


-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf Of
Laurent Hoeltgen
Sent: Wednesday, April 23, 2014 1:03 AM
To: address@hidden
Subject: Re:

On 23/04/14 09:34, Dincy Paul wrote:
> Hi..
> How to convert an RGB image into a gray scale image . Please help.
> Regards
> Dincy
> 
> 
> _______________________________________________
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> https://lists.gnu.org/mailman/listinfo/help-octave
> 

Hi,

a naive way is to do a simple (weighted) average of the three RGB channels.

Regards,
Laurent

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