[Radiance-general] Color ? Greyscale pic file transformation

[david behar]

Dear Axel
Thank you very much for your help
I will try it and see if it works for me
Best
David

David Behar - Perahia
http://davidbeharperahia.wordpress.com/
www.davidbehar.net




________________________________
 From: Axel Jacobs <jacobs.axel at gmail.com>
To: radiance-general at radiance-online.org 
Sent: Tuesday, 12 June 2012, 18:54
Subject: Re: [Radiance-general] Color ? Greyscale pic file transformation
 
Hi David,

this will give you a black and white scale, with black = 0 and white =
maximum (-s option):

$ falsecolor -ip image.hdr -r 'v' -g 'v' -b 'v' > image_fc.hdr

Is this what you want?

Cheers

Axel


> I want to ask for your help
> with dealing with pic files. Usually the results of Radiance
> simulation of illuminance levels gives a spread of lines and values
> by using colors or colored contours lines graphic representations.
> I want to ask if there is
> anyway to transform the results from a color based presentations, to
> Black and White presentations? Transforming the usual color result
> into greyscale presentation do not give the responding scale of grey
> values - for example ? red is usually the color used for high
> values, where once greyscaled, it gets a grey which is a middle hue
> in relation to the others.
>
> I will be very happy for an
> advice for how to make a fit in between a color scale of values and a
> grey scale of values for a pic result ?
>
> Thank you very much!!
> David

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