[Radiance-general] Image from text

[dbs176 at gmail.com]

Ah, thanks, pvalue does the trick.

Two things of note though which I don't think are documented: It looks like  
pvalue needs the ASCII input to have a Radiance header - at  
least "#?RADIANCE" on the first line followed by a blank line. In the  
command "pvalue -h image.hdr | pvalue -r > image2.hdr" the second pvalue  
will not know what to do with the output from the first pvalue.

Also, the -d switch on pvalue works on the reverse operation as well. If  
you do something like "pvalue -d image.hdr | pvalue -r > image2.hdr", the  
second pvalue will use the header to determine the dimensions but ignore  
the red and green columns (assuming they were supposed to be x and y), so  
you'll get only the blue channel in image2.hdr. However, "pvalue -d  
image.hdr | pvalue -r -d > image2.hdr" will reproduce the original image.  
This behavior is noted in the Bugs section but not in the description for  
the -d option.

--Dave
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