[Openicc] gsoc

[Hal V. Engel]

On Thursday 30 August 2007 04:59:14 Alexandre Prokoudine wrote:
> Hi,
>
> Just a gentle reminder that GSoC 2007 is now over and it would be
> great to have an update on both of our projects whenever mentors feel
> comfortable about it ;-)
>
> Alexandre

Here is a preliminary update.

1. Three new profiling targets are now supported.  Bringing the total number 
of supported targets to seven.   LProf CVS now has support for the following 
profiling targets.

IT8.7 - all three flavors.  This is not new.

Hutch Color Target.  This support went in before the GSoC midterm.  It has 
been fairly well tested on Linux and Windows.  It should work on OS/X as well 
but is likely untested at this time.  Tracker #1294751
 
GretagMacbeth ColorChecker 24 patch, SG and DC targets.  CC 24 support has 
been in place for a while and is not new.  The CC SG and DC support went in 
just before project completion and it is working on Windows.  Current CVS has 
issues on *nix systems with these targets related to file system security.  
The student has code that works on *nix systems and should have this in CVS 
in a few days.   I will be adding some additional things to the LProf 
build/install scripts in the next few days to fully support this on 
non-Windows platforms.   The CC DC and SG support is still alpha level code, 
is likely buggy and needs more testing.  If you have one of these targets and 
would like to do some testing please let me know. Tracker #1545504

One of the issues encountered was that we were not able to obtain a sample 
reference file for the ColorChecker DC.  X-Rite was non-responsive when I 
asked for a sample reference file.  Support for the CC DC target was 
implemented with the assumption that the CC DC reference files were the same 
format as the CC SG reference files.  IE. That these were both Logo spectral 
data files.  If anyone here has access to a reference file for a ColorChecker 
DC target please get back to me. 

2. A long existing bug that prevented the reference file selector from 
sometimes working correctly when there were non-reference files in the same 
directory has been fixed.  Tracker #1533542

3. Users no longer need to select a template when installing a reference file.  
The reference file installer will figure out what type of reference file it 
is installing and automatically select the correct template.  This was not 
part of the original proposal but the student discovered that the code he was 
putting in place to support the HCT targets made this possible and we decided 
to add this feature.  This greatly simplified the UI for the reference file 
installer and removes a possible source of user errors (IE. users can no 
longer select an incorrect template). Tracker #1745796

4. There is now much more checking done when a reference file is installed to 
make sure that users are installing a valid reference file and to prevent 
issues with users trying to install a non-reference file.  There is no 
tracker item for this.

5. The Windows build for LProf is working and is now in CVS.  This was not 
working prior to the start of the project.  Tracker #1732351

6. An existing bug where sometimes on Windows machines the reference file 
installer would return a file path that was missing a slash "/" has been 
fixed.  This is a significant bug in existing Windows releases and accounts 
for perhaps 30% of all support requests from Windows users.  Tracker #1734219 

Overall I would rate the project a success.  The student working on this is 
just starting his third year of undergraduate work.  So even though most of 
what he worked on would have been fairly simple for a more experienced 
programmer it was a stretch for him considering his education and experience 
level.  The student reports that he learned a lot from the project.  I had 
decided early on that this would be one of my main criteria for measuring the 
success of the project.  In addition, the completed items add significant new 
functionality to LProf and LProf is now one of only a handful of profilers 
that supports every profiling target available.

Over all 11 of 15 items related to this in the tracker system were closed 
before the official end of the project.  The student as agreed to stick 
around until all 11 of the closed items are stable and to also finish 1 of 
the remaining open items.  Considering the experience level of the student 
working on this I feel that he accomplished about as much as I would have 
expected.

Hal