digiKam Google Summer of Code 2013 Proposals

Auto Crop Tool

Resume : In some users case relevant of photo workflow, as Panorama assembly for example, digiKam need an algorithm to detect black hole borders of image and crop it automatically, respecting the most largest suitable image area. No adjustment must be require by end user. As JPEG is the most used image format used in photography and as JPEG library support a loss-less crop feature, a specific way must be implemented to process JPEG crop in batch without to lose image quality.
Dependencies : Batch Queue Manager, Image Editor.
Bugzilla entries : 267436, 204135
Skill : C/C++, Qt, Imagery
Difficulty : medium
Lead Mentor : ???
Alternative Mentor : ???

Resume : Moving tags around in the small tags views from right or left digiKam sidebar can be fastidious, especially with a huge collection of items. A new dedicated windows must be created to manage all tags and relevant properties hosted by digiKam database. This tool must support drag and drop, multiple selections, copy/move operations, properties edition and duplication.
Dependencies : digiKam core implementation
Bugzilla entries : 263299
Skill : C/C++, Qt/KDE, GUI
Difficulty : medium
Lead Mentor : ???
Alternative Mentor : ???

Resume : digiKam already include face detection feature. The goal of this project is to add face recognition feature in digikam and will make it more user-friendly. The target is to implement a efficient face recognition algorithm and a nice user interface for the user so that they get a nice feeling using it and the user can train the system with their interaction.
Bugzilla entries : 271679, 308642, 291514
Dependencies : libkface, digiKam face management core
Skill : C/C++, Qt, Imagery, math
Difficulty : high
Lead Mentor : ???
Alternative Mentor : ???

Resume : digiKam already include a tool to make pseudo HDR image through ExpoBlending tool, based on align_image_stack and enfuse programs from Hugin project. This tool is limited to improve a litlle bit exposure latitude of images. It has creativity limitations and cannot reproduce nice HDR images, as Luminance HDR do. The goal of this project is to extend current ExpoBlending tool to add new advanced HDR worklflow. Also, some GUI improvment need to be done to be able to process more that on set of bracketing shots at the same time.
Bugzilla entries : 275364, 273254
Dependencies : ExpoBlending tool
Skill : C/C++, Qt, Imagery, math
Difficulty : high
Lead Mentor : ???
Alternative Mentor : ???

Resume : Creating a kipi export plugin for putting the pictures on cloud storage devices like Google Drive, DropBox, Skydrive, etc. Depends on the availability of an open source API.
Bugzilla entries : 300445
Dependencies : APIs from G+, Dropbox, Skydrive tool
Skill : C/C++, Qt
Difficulty : easy / medium
Lead Mentor : ???
Alternative Mentor : ???

Resume : ThumbBarView is a Qt3Support class based on Q3ScrollView class which will disappear with next Qt5. This class still only used by Showfoto editor. It must be ported to Qt model/view implementation using already existing common classes used in digiKam core.
Dependencies : digiKam core, Qt model view
Skill : C/C++, Qt, model/view
Difficulty : medium
Lead Mentor : ???
Alternative Mentor : ???

Resume : Image Editor canvas classes are Qt3Support classes based on Q3ScrollView which will disappear with next Qt5. This class is used by digiKam Image editor to render lead editor canvas and some tools canvas as ColorCorrection, CurvesAdjust, LevelAdjust, etc. It must be ported to Qt4 model/view implementation using already existing common classes used in digiKam core.
Dependencies : digiKam core, Image Editor, Qt model view
Skill : C/C++, Qt, model/view
Difficulty : high
Lead Mentor : ???
Alternative Mentor : ???

Resume : digiKam include CImg library to be able to use Greystoration algortihm which give nice fix to image based on Vortex theory, as Restoration tool. Since CImg > 3.0.0, Greystoration algorithm have been move in a new library named GMic with a completely different API. The goal of this project is to adapt digiKam Greystoration interface to GMic library.
Dependencies : digiKam core
Skill : C/C++, math, Qt,
Difficulty : high
Lead Mentor : ???
Alternative Mentor : ???