[Digikam-users] Exposure Blending tool finalization...

[Laurent Espitallier]

Le 21/12/2009 16:24, Gilles Caulier a écrit :
> Hi all,
>
> Since few day, i working hard to create a new tool to make pseudo HDR image.
>
> After some try with QtPfsGui code imported and improved as a new
> kipi-plugins (code is in my home dir from KDE svn), I never give a
> right result as HDR creation and Tonemapping. QtPfsGui code is very
> very very experiemental. Only one time, i create successfully an HDR
> image without artefact. This is not enough for me/
>
> I cannot understand why users said that QtPfsGui is a good program.
> Please, if you fell that i'm wrong let's me hear. Perhaps i have a
> simple view of programmer, but at least code speak about : I lost one
> week to review and fix this code to be suitable, readable, and
> maintainable.
>
> It's a shame to writte code like this... but it's another story...
>
> So, after to be tired to play with QtPfsGui code, i thinking to take
> another way : Enfuse.
>
> The idea is simple :
>
> 1/ Define a stack of bracketed images.
> 2/ If Raw images, convert it to TIFF 16 bits with auto-gamma.
> 3/ Auto Align stack with Hugin auto_align_stack command line program.
> 4/ Start pseudo-HDR editor, the famous Enfuse frontend designed by me (:=)))
>
> All is done, excepted step 2, partially implemented. Tool is currently
> suitable with all other images formats as JPEG, PNG, TIFF, etc...
>
> You need to install Hugin and Enblend project to your computer before
> to use this new tool.
>
> Now the screenshots... Champagne please !
>
> 1/ The tool is available in digiKam Tools menu :
>
> http://farm3.static.flickr.com/2657/4203352088_78f8025d41_o.png
>
> 2/ The first stage of the tool is an assistant :
>
> http://farm3.static.flickr.com/2681/4203352164_388c23be82_o.png
>
> 3/ You need first to set-up bracketed images stack :
>
> http://farm3.static.flickr.com/2590/4203352256_91dd0dbd55_o.png
>
> 4/ After that tool is ready to process auto alignment of stack :
>
> http://farm3.static.flickr.com/2629/4202593315_7bd8a6fe66_o.png
>
> 5/ Auto-Alignment can be long... so, take a cup of Champagne to be patient :
>
> http://farm3.static.flickr.com/2596/4203352414_edc73d4d8d_o.png
>
> 6/ "Et Voil�". Auto-Alignment is done. Aligned images are save to temp
> TIFF files :
>
> http://farm5.static.flickr.com/4006/4203352494_49704b8972_o.png
>
> 7/ And now, the best for the end... Let's go to fuse bracketed images :
>
> http://farm3.static.flickr.com/2496/4203352570_b30255d05b_o.png
>
> 8/ Enfuse take a while too, depending of options used... At least,
> result is great (:=))) :
>
> http://farm3.static.flickr.com/2761/4202593625_e03a4d8256_o.png
>
> My TODO List :
>
> - Move this tool from my home KDE svn dir to trunk to be available in
> kipi-plugins 1.1. I will do it soon.
> - Add Raw support.
> - Add a stack of processed images in Enfuse Gui. Selecting one items
> will display it in preview. You can select the best to export in your
> collection.
> - Add some advanced Enfuse options. Here i'm waiting comments form users...
> - Hack last bugs, memory leak, and other joys (:=)))...
>
> Important : this tool is also available as a stand alone application
> "expoblending". It's installed in your usual binary place from your
> computer.
>
> I'm waiting your viewpoints, feedback, critics... etc...
>
> Your servant
>
> Gilles Caulier
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>
>    
I think exposure fusion /Enfuse is the best way but I'd just liked to 
say "Qtpfsgui" has just been renamed to "Luminance HDR" 
http://qtpfsgui.sourceforge.net/index.php

Many improvements seems to have been made. Don't know for code quality.

1) Cropping of HDRs
2) Tonemapping of a selected rectangle for a quick preview
3) A new operator (Mantiuk '08)
4) All old operators updated
5) HDR in Tonemapping Window
6) Tonemapping of a previous tonemapped HDR
....some more to find out.