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Alcedine
Joined 26 February 2014
Elaborated on the task and provided delivery targets
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== Y: Your task == | == Y: Your task == | ||
* Did you select a task from our list of proposals and ideas? | * Did you select a task from our list of proposals and ideas? | ||
** If yes, what task did you choose? Please describe what part of it you especially want to focus on if you can already provide this information. ' | |||
Yes. | |||
** If yes, what task did you choose? Please describe what part of it you especially want to focus on if you can already provide this information. | |||
My task is the one about [http://wiki.octave.org/SoC_Project_Ideas#Improvements_to_N-dimensional_image_processing N-dimensional image processing]. | |||
The project will consist of two parts. | |||
The first part spans the first two thirds of the coding period and consists of extending the existing geometric transformation functions to handle N-dimensional images. | |||
The second part begins work on geometric transformation objects. | |||
It's difficult to predict how far it is possible to go in the allotted time, but the working target is to have a rough functional prototype of the affine2d object and an imwarp function that works with it. | |||
I will also bring the relevant documentation up to speed, with examples where they are missing. | |||
The first part of the project has its deliverables spread over two targets in order to provide some concrete results for the midterm: | |||
====Delivery target I (June 23)==== | |||
'''makeresampler, tformarray''' - | |||
general transformation utilities; tformarray in particular handles transformations of a more general sort than just 2D. These functions are entirely new. | |||
'''imcrop, imresize, imrotate, imtranslate, imtransform''' -- | |||
simple operations on images. These will be extended to support ND images, for which the relevant operation is applied planewise. Their 2D versions already exist in the image package. | |||
The functions shall be in releasable form, with code and tests in their final forms. The documentation shall be in a reasonable state, but doesn't have to be finalized. | |||
====Delivery target II (July 10)==== | |||
'''impyramid''' - a compression algorithm; the paper is available [http://web.mit.edu/persci/people/adelson/pub_pdfs/pyramid83.pdf here]. This does not currently exist in Octave, but will be implemented in a form that is ND-compatible. | |||
This function shall be delivered in finalized form. In addition, documentation for the functions from target I shall be finalized. | |||
====Delivery target III (August 18)==== | |||
Geometric transformation objects have the same function as the tform structs created by maketform, but are class-based. | |||
A functional prototype of the '''affine2d''' object shall be delivered, along with an '''imwarp''' that works with it. The implementation should describe a paradigm that can be easily applied to further transformation objects. | |||
===Timeline=== | |||
{| | |||
!style="text-align:right;"| May 19 | |||
|Coding starts | |||
|- | |||
!style="text-align:right;"| June 23 | |||
|Delivery target I. Midterm evaluations open | |||
|- | |||
!style="text-align:right;"| June 27 | |||
|Midterm evaluations deadline | |||
|- | |||
!style="text-align:right;"| July 10 | |||
|Delivery target II. Work begins on transformation objects | |||
|- | |||
!style="text-align:right;"| August 11 | |||
|Code complete. Cleanup and complement tests where necessary | |||
|- | |||
!style="text-align:right;"| August 18 | |||
|Pencils down; delivery target III. Final evaluations open | |||
|- | |||
!style="text-align:right;"| August 22 | |||
|Final evaluations deadline | |||
|} | |||
In the event that the geometric transformation functions take less time than anticipated, they will be finished ahead of time and work on the transformation objects will begin immediately. | |||
[[Category: Summer of Code]] | [[Category: Summer of Code]] | ||