[Radiance-general] Can you change the default colors in falsecolor images

[Axel Jacobs]

Hi Shrikar,

I suppose you have discovered the -pal and -palettes options, but this 
still doesn't give you what you want?

You can create custom scales using the -r, -g and -b options.  Here is 
an example for a 3-step blue-yellow-white scale:

falsecolor –ip picture.hdr –s 5000 –r ‘if(v-0.3,1,0)’ \
–g ‘if(v-0.3,1,0)’ –b ‘if(v-0.3,if(v-0.7,1,0)1)’ > picture_fc.hdr

It requires a bit of cal magic.  You may also look at the falsecolor 
code for inspiration.

Best

Axel


On 28/08/14 21:20, Shrikar Bhave wrote:
> Hello All,
>
> Got this unusual request. I am not sure how I can change that. Any
> pointers?
> Can I set custom colors based on say min/max and number of desired steps
> in between?
> I am looking at both Luminance and Illuminance falsecolor images.
> Has anyone attempted that before, if yes, any examples?
>
> Thanks,
>
> Shri
>
> P.S> Apologies for my past emails with attachments, I promise I will be
> diligent next time!
>
>
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