I'm pleased to announce that development snapshot version 1.11.4 of LProf is
now available. This is the sixth development snapshot of the work that has
been underway since LProf became a SourceForge project. Please see the
LProf SourceForge home page at http://lprof.sourceforge.net/ for details.
This is a development snap shot of what will become version 1.12 when it is
stable. Although testing by the development team indicates that this
snapshot appears to be stable it is none the less a development release and as
such it should not be considered a stable release. It has not been
extensively tested and on some platforms has had very little testing and may
have significant unknown bugs. This is being made available so that users
can test the new release to report problems and make suggestions for
Significant changes since the last development snapshot include:
1. The LProf user interface is now translatable and the following translations
are included in this release:
Several other translations are in the pipeline. As these are completed
additional language only releases (language packs) will be made available
along with installation instructions.
The LProf project is looking for volunteers to do translations to other
languages. If you would like to assist with this effort please feel free to
contact anyone on the LProf development team.
2. For the first time since version 1.09 LProf now has a Windows installation
binary. LProf now has a volunteer who has taken responsibility for the
Windows port. Previously none of the LProf developers were Windows users and
we needed someone who would do the Windows port justice. It took a while to
find a volunteer but Joe Pizzi stepped forward and is highly qualified. This
is the first release that will show case his hard work.
This Windows port has not been extensively tested and may have significant
unknown problems. Windows users are encouraged to test this release and to
report any problems to the LProf team.
3. The Mac build scripts have been updated and one Mac user has tested the
build and reported that it works. This will build a native (non-Fink)
executable for the Mac. The Mac port has not been extensively tested (even
less than the Windows port) and may have significant unknown problems. Mac
users are invited to give it a try and to report results to the LProf team.
4. Improved pick template placement code. In previous versions of LProf the
pick template placement code would sometimes exhibit unpredictable behavior.
In addition, it would sometimes place the hot zones in slightly different
locations than in the UI when pulling the color data from the target image.
These problems have now been fixed.
5. LProf now has a work around that will allow it to build on systems with QT
3.3.5 or 3.3.6 installed.
6. The proofing code has been improved and now correctly performs color
space transformations on the actual high bit depth image data rather than on
the 8 bits/channel display image data.
7. The spline regression algorithm has been upgraded to produce smoother Color
Look Up Table (CLUT) curves.
8. Most of the dialogs have been reworked to make them smaller, eliminate
un-needed controls and to improve usability. Among these changes LProf will
now remember the sizes of windows and dialogs, if these are resized, both
during execution and when the application is restarted.
9. LProf would sometimes blow up when opening profiles that were not ICC
compliant. It now detects many of these non-conforming profiles and by passes
10. LProf now has a feature that will perform cross validation on the
regression model to estimate how well the resulting profiles will work in
real world conditions. This will assist users with tuning the regression
parameters used for creating input device profiles.
11. LProf now uses CIE based weighting for color patches in the regression
model which gives higher weight to gray patches for improved neutrality in
the critical gray and near gray region.
12. Numerous other smaller bug fixes, enhancements and code cleans ups.
Please feel free to download, build, install and test this development
snapshot. User feedback is very much appreciated and any reported problems
will receive prompt attention from the LProf development team.
In addition, the LProf project could use your help in other ways and we are
looking for volunteers to handle various tasks. Many of the things that
need to be done are non-technical. Therefore even those that do not have a
technical back ground can contribute. Doing translations and working on
documentation are examples of things that are not technical that need to be
done. Please contact me if you would like to get involved in this effort in
Hal V. Engel
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