Summer of Code - Getting Started: Difference between revisions

Summer of Code - Getting Started (view source)

Revision as of 06:57, 10 April 2022

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→‎Suggested projects: Remove TIFF project until mentors respond again.

Siko1056

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 * '''Potential mentors'''
 : [https://octave.discourse.group/u/cbm Colin B. Macdonald], [https://octave.discourse.group/u/mtmiller Mike Miller], Abhinav Tripathi
-== Improve TIFF image support ==
-[https://en.wikipedia.org/wiki/TIFF Tag Image File Format (TIFF)] is the de facto standard for scientific images.  Octave uses the [http://www.graphicsmagick.org/ GraphicsMagic] (GM) C++ library to handle [http://www.graphicsmagick.org/formats.html TIFF and many others image formats]. However, GM still has several limitations:
-* GM has build option {{codeline|quantum}} which defines the bitdepth to use when reading an image:
-** Building GM with '''high quantum''' means that images of smaller bitdepth will take a lot more memory when reading.
-** Building GM with '''low quantum''' will make it impossible to read images of higher bitdepth. It also means that the image needs to always be rescaled to the correct range.
-* GM supports unsigned integers only, thus incorrectly reading files such as TIFF with floating-point data.
-* GM hides details of the image such as whether the image file is indexed.  This makes it hard to access the real data stored on file.
-This project aims to implement better TIFF image support using [https://en.wikipedia.org/wiki/Libtiff libtiff], while leaving GM handle all other image formats.  After writing a [https://octave.org/doc/v6.1.0/classdef-Classes.html classdef] interface to libtiff, improve the Octave functions {{manual|imread}}, {{manual|imwrite}}, and {{manual|imfinfo}} to make use of it.
-* '''Project size''' [[#Project sizes | [?]]] and '''Difficulty'''
-: ~350 hours (medium)
-* '''Required skills'''
-: Octave, C/C++
-* '''Potential mentors'''
-: [https://octave.discourse.group/u/carandraug Carnë Draug]
 == PolarAxes and Plotting Improvements ==