[argyllcms] Having rouble with chartread

  • From: Leonard Evens <len@xxxxxxxxxxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Thu, 10 Mar 2011 12:51:39 -0600

I am in the process of trying to produce a printer profile for my Epson
3880 printer.

I created three letter size charts with targen and printtarg.  I am
using an eye-one-pro to read the charts.   I  have a frame to hold the
paper and the eye-one-pro, so that I can read each strip sliding the
device from one side to the  other.  But when I start I keep getting
error messages like

Ready to read strip pass A
Press 'f' to move forward, 'b' to move back, 'n' for next unread,
 'd' when done, Esc or 'q' to quit without saving.
Trigger instrument switch or any other key to start: 

Strip read failed due to misread (Not enough patches)
Hit Esc to give up, any other key to retry:

A few years a go, I did manage to use this setup to profile my old Epson
1280, but I don't remember how I did it.

Any suggestions would be helpful.

I added the -B option to chartread and tried to read from left to right.

Added later:

I think I got it to work.  I dropped the -B option, but I read
every row from left to right.

I still have to make the profile, so there is work yet to do, and I
may have to start over again, but I think I know what to do.

In the process, I had to reread a few rows, but I got through all of them (on 
three
letter size sheets.)   Unfortunately,  my workspace is set up badly,
and I had to hold the frame on my lap, and the paper kept slipping, but somehow
or other I got through it.  When I do it again,  I shall set myself up with 
space
to work in and use some double stick tape to hold each chart as I read it.

I would still welcome any suggestions which might be helpful.


-- 
Leonard Evens len@xxxxxxxxxxxxxxxxxxxxx
Professor Emeritus, Department of Mathematics, Northwestern University



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