[Radiance-general] changing header in images for evalglare

[Greg Ward]

Hi David,

Similar to rtrace, on which it is based, rtcontrib has no notion of what a picture is.  The output from it is consequently lacking information you would get out of rpict or rvu for example.  There is no easy fix to this, other than scripting something to post-process the output as I suppose you are doing.

Cheers,
-Greg

> From: David Appelfeld <d.appelfeld at gmail.com>
> Date: December 9, 2011 4:03:43 PM PST
> 
> Thank you Greg, it is working. 
> 
> Is there way how to include the view information in the header directly, instead of manipulating header for each picture? 
> 
> Best
> David
> 
> 
> On 9 December 2011 15:39, Greg Ward <gregoryjward at gmail.com> wrote:
> Use:
> 
>        getinfo < orig.hdr > modified.hdr
>        # modify "modified.hdr" using favorite text editor, keeping final empty line (and no others)
>        getinfo - < orig.hdr >> modified.hdr
> 
> If you're just adding a view line to the header, you could use:
> 
>        echo "VIEW= -vta -vh 180 -vv 180" > modified.hdr
>        cat orig.hdr >> modified.hdr
> 
> The latter method messes up the header slightly, but should still work.
> 
> -Greg
> 
> > From: David Appelfeld <d.appelfeld at gmail.com>
> > Date: December 9, 2011 3:28:10 PM PST
> >
> > Hello All,
> >
> > I want to use evalglare to evaluate glare in radiance images. I generated images by three phase method, unfortunately header of those images does not include view information, which I think that evalglare looks for explicitly.
> > I have tried to change the image header just in text editor but it  did not work and demage the image. I would like to ask how to change the header, I know that it may be trivial but I did spend some time on it already and did not find how to do it yet.
> >
> > Thank you for all advices.
> > David
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