[Digikam-devel] [digikam] [Bug 333115] New: workflow for camera(!!) related picture dead pixel correction or dust on a lens

Axel Krebs axel.krebs at t-online.de
Sun Apr 6 07:23:30 BST 2014


            Bug ID: 333115
           Summary: workflow for camera(!!) related picture dead pixel
                    correction or dust on a lens
    Classification: Unclassified
           Product: digikam
           Version: 3.5.0
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: Image Editor
          Assignee: digikam-devel at kde.org
          Reporter: axel.krebs at t-online.de

digital cameras use sensors with many pixels - millions of these are standard

I suggest to develop a workflow which could correct many of these visual
defects (more ot less) automatically.

Reproducible: Always

Steps to Reproduce:
1. dead pixels or dust may appear without announcement (suddenly) on a picture
2. theses/concept idea: if comparing two pictures, there must be a situation,
where the first one is still ok, and the subsequent picture is affected (dust
on a lense, e.g.)
Actual Results:  
digiKam does not take care of such picture defects.

Expected Results:  
digiKam should (could?) automatically repair such mistakes. 

Which defects I am thinking of?
- dead pixels (https://en.wikipedia.org/wiki/Defective_pixel)
- dust on a lens, filter, etc.

All these defects appear on the pic later. 
They appear on all pictures from a certain begin on. 

Tools for picture repair under. 
or http://sourceforge.net/projects/imageinpainting/files/

A reasonable strategy could be to compare pictures pairwise, to extract "common
picture information" which would be the difference of two pics containing the
fault, I want to differentiate out.

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