Lprof... 5 years later
By Nicolas on Tuesday, July 7 2009, 21:10 - Linux Color Management - Permalink
I'm currently busy printing pictures that I've scanned years ago. I've noticed though that as my maturity within the color accuracy fields grow, I was not pleased with some pictures. Colors were weird...
I decided it was time to go back to re-scanning those films again.
First thing first, I needed to re-calibrate my scanner for color accuracy. Since the last time that I've used this device (a Nikon Coolscan Ved) everything here have changed and I've lost my previous color profiles. Here comes Lprof.
To start by the end, I've been successful to produce a good quality profile for my scanner and I'm currently enjoying a smooth experience at re-scanning pictures and comparing them to the result I was achieving 5 years ago. In one world: far better.
However, what is less cheerful is that Lprof is a bit weird and does break a lot of usability patterns. I had to go to the help files to learn how to use the software and even with that it took me a lot of trials-and-errors to find my way.
For a starter, I've not been able to install the software under Linux, the Gentoo package was crashing. For convenience I decided to install it on my virtual windows. Reboot (ok I didn't do that straight away and a lot of things weren't working until the windows was fully rebooted). Upload of the target (and understand what was the meaning of the 19 ; 22 ; etc. columns selector). Upload the scanned picture of the target. Understand how to map the target to the scanned picture (took me a while), you have to position 4 corners... at the corners of your picture (with CPU skyrocketing to 100% and 30 sec. freeze each time). And then understand how you can supply a name for your profile: you need to select the target folder and type a name of a new empty file.
And there you have a nice new profile.