Digital BW, The Print

> how to make .ACV file from tabular data???  Is it really limited to 
> only 20 points like in the curve dialog box?  

I wrote a perl script once that creates .ACV files from tabular text
files. It's pretty specific in that it's only useful for linearizing a
21 step wedge. The text file has exactly 21 rows, and you need to skip 5
rows in each column to get down to the allowed 16 points that photoshop
will read.

If you insert more points than 16 (including the black and white points)
Photoshop refuses to read the file.

In the Photoshop 5.0 SDK they allow for 19 points on the curve, so they
must have cut down on the allowed number in one of the later versions.

It probably wouldn't take too much work to create a general purpose
script that could have completely separate input/output values for each
channel. Right now the input value is the same for all three channels
while the output values are different. I use this to measure a patch
with a densitometer for the input value and then I place the RGB values
for that patch at the corrected point.

Le me know if you're interested in a copy of the script.

--
Daniel Staver
http://daniel.staver.no

> Ok, thanks, but still, how do you do it?  ie. what application?  
> Thanks for help in what should be simple... I just don't know how to 
> do it:)
> 
> Your help is greatly appreciated!