probing a radiance image, convert radiance to XYZ

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

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

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

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

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general