Hello Ignacio, hello list
I think, it would be a big help for developers, if your tools (or parts)
would be part of the lcms contribution.
This would make it easier for developers to realize things like I
describes in mails before:
saving and transporting coloradjustments as devicelink or abstract profile
------
(If a printer-driver supports devicelink-profiles, user could e.g.print
a testimage, apply the coloradjustments, they want, and print later
every job with this coloradjustment)
Use your imaging application as devicelink-profile editor
------------
Often an ICC-conversion delivers not exactly the result, which users
expect. But with some coloradjustment, it would be nearly perfect.
A way to solve this:
1. Link the ICC-profiles together to an devicelink-profile
2. Transform an IT-8 like testimage with the devicelink-profile
3. Edit the transformed testimage in your imaging application
4. Link the edited values with the original IT-8 values to a new
devicelink-profile.
5. Apply this devicelink-profile instead your normal ICC-transformation.
Imagine e.g. the next version of gutenprint comes with lcms-support and
some standard-icc profiles. The results for your printer are good, but
not optimal.
The described way is easy to go, without the need to buy a
spectrophotmeter and a profiling software.
So this technology makes sense for all color-aware users of opensource
applications and not only for graphic arts color geeks.
--
An alternative to the devicelink-way would the use of abstract profiles
for storing color-adjustments and apply them additionally in the ICC-chain.
So please make it easy to the developers to integrate such functionality
in their imaging applications, by deliviring tools with lcms.
:-) Jan-Peter
ignacio ruiz de conejo schrieb:
Jan-Peter:
Others in the list have addressed your first question below.
Regarding the second one (how to convert imagepixel to ASCII)
I have two different answers:
1) You can always use Gretag's freeware tool ColorLab to open
an image and save it as text.
2) I wrote two tools, TIFFtoIT8 and IT8toTIFF, that allow
the conversions between pixels and ASCII and viceversa.
They make use of Marti's CGATS parser and TIFFLIB.
Although they work for me, they are limited in scope
(address only my needs: RGB, LAB, CMYK, Separated
TIFFs, image offsets, pixel replication)
Should Marti consider a Contrib folder that would gather tools
and (acceptable) pieces of code writen with lcms?
I wouldn't mind sharing mine...
Regards,
Ignacio
My question:
- Is there code for converting ASCII to a devicelink-profile ?
- Is there code for converting imagepixel to ASCII ?
- can we integrate this in lcms ?
greetings from the colorspace
:-) Jan-Peter
--
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