[Radiance-general] probing a radiance image, convert radiance to XYZ

[Jack de Valpine]

Ack, almost had it! See Greg's reply for the corrected version.

-Jack

-- 
# Jack de Valpine
# president
#
# visarc incorporated
# http://www.visarc.com
#
# channeling technology for superior design and construction


On 12/15/2010 12:53 PM, Jack de Valpine wrote:
> Hi Jelle,
>
> Try the following:
>
>     ximage -ov [fname.pic] | rcalc -f xyz_rgb.cal -e
>     '$1=X($1,$2,$3);$2=Y($1,$2,$3);$3=Z($1,$2,$3);'
>
> -Jack
> -- 
> # Jack de Valpine
> # president
> #
> # visarc incorporated
> #http://www.visarc.com
> #
> # channeling technology for superior design and construction
>
> On 12/15/2010 12:28 PM, jelle wrote:
>> Hi,
>>
>> I'd like to probe a radiance image using ximage -ov, but rather than read it's
>>   radiance value, I'd like to know its XYZ color values.
>> I'm sure I should be doing something like:
>> "ximage -ov data/Desk.hdr | rcalc -f xyz_rgb.cal"
>>   but my radiance is a little rusty it seems...
>>
>> Many thanks in advance,
>>
>> -jelle
>>
>>
>>
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>
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