[Bug 179413] New: Support restoring blown out highlights

[Dik Takken-2]

http://bugs.kde.org/show_bug.cgi?id=179413

           Summary: Support restoring blown out highlights
           Product: digikam
           Version: 0.9.4
          Platform: Gentoo Packages
        OS/Version: Linux
            Status: NEW
          Severity: wishlist
          Priority: NOR
         Component: Image Editor
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           0.9.4 (using KDE 3.5.10)
OS:                Linux
Installed from:    Gentoo Packages

DigiKam could use a function that allows the user to restore the highlights of
the image. Restoring hightlights is needed for all pixels that have at least
one clipped channel. UFRaw suports this.

More info about how UFRaw does this:

http://people.zoy.org/~cyril/dcraw_lchblend/highlight_recovery_dcraw_lch_patch.html


--
Configure bugmail: http://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
Digikam-devel mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-devel

[Gilles Caulier-4]

http://bugs.kde.org/show_bug.cgi?id=179413


Gilles Caulier caulier gilles gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
          Component|Image Editor                |RAW files management
         Resolution|                            |FIXED




--- Comment #1 from Gilles Caulier <caulier gilles gmail com>  2009-01-03 10:18:14 ---
Already implemented in digiKam 0.9.5 with libkdcraw based on libraw (try last
version 0.1.7). Use RAW Import tool for details.

It's the same with KDE4 version.

Look this screenshot for details:

http://www.flickr.com/photos/digikam/3162004701/sizes/o/in/pool-817639@N22/

Gilles Caulier


--
Configure bugmail: http://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
Digikam-devel mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-devel

[Dik Takken-2]

http://bugs.kde.org/show_bug.cgi?id=179413





--- Comment #2 from Dik Takken <d h j takken xs4all nl>  2009-01-03 12:42:27 ---
I forgot to mention that I would like to have this available for all image
formats, not only RAW images. Reopen?


--
Configure bugmail: http://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
Digikam-devel mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-devel

[Gilles Caulier-4]

http://bugs.kde.org/show_bug.cgi?id=179413





--- Comment #3 from Gilles Caulier <caulier gilles gmail com>  2009-01-03 12:49:53 ---
Well, i think no,

...because, it's only possible with RAW, before to do all post processing
adjustement. Why ? because information is lost especially with highlight.

This is the advantage of RAW and 16 bits color depth.

Gilles Caulier


--
Configure bugmail: http://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
Digikam-devel mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-devel

[Dik Takken-2]

http://bugs.kde.org/show_bug.cgi?id=179413





--- Comment #4 from Dik Takken <d h j takken xs4all nl>  2009-01-03 13:05:54 ---
Hmm... Well, I never tried it on 8-bit JPEG images but I can't think of any
technical reason why it shouldn't work.. The technique is targetted at pixels
that have one or two channels clipped. This problem exists in many images, not
only  RAW images. That is why I think it would be a good thing to allow the
user to apply highlight restoration to any image.

Another reason why DigiKam should do highlight restoration on any image: When
the user processes images in DigiKam, pixel values can clip without the user
noticing it. Sure, DigiKam can show clipped pixels in the image. But DigiKam
only shows pixels that have all three channels clipped. Pixels with only one
channel clipped do not show up. Because DigiKam can easily clip pixels without
warning, there should be a means to fix the damage caused by image processing.

One more thing: There are more 16-bit image formats besides RAW images. Think
of TIFF files. Currently, DigiKam does not allow the user to restore the
highlights of these files.


--
Configure bugmail: http://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
Digikam-devel mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-devel

http://bugs.kde.org/show_bug.cgi?id=179413





--- Comment #5 from Mikolaj Machowski <mikmach wp pl>  2009-01-03 14:41:41 ---
This is similar in nature for Highligh/Shadows feature known from Adobe PS but
also present in programs like RawTherapee.


--
Configure bugmail: http://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
Digikam-devel mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-devel

[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=179413

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Version Fixed In|                            |0.9.5

--
You are receiving this mail because:
You are the assignee for the bug.
_______________________________________________
Digikam-devel mailing list
[hidden email]
https://mail.kde.org/mailman/listinfo/digikam-devel

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=179413

[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
          Component|Workflow                    |ImageEditor-RawImport

--
You are receiving this mail because:
You are the assignee for the bug.