theotherphil

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Add non-local-means image denoising

2

A naive implementation would be extremely slow, so we should probably implement something like this: http://www.gipsa-lab.grenoble-inp.fr/~laurent.condat/publis/condat_resreport_NLmeansv3.pdf.

Add bilateral filter

7

Possibly the fast version here: http://www.shellandslate.com/download/fastmedian_5506.pdf

How best to add parallelism?

15

Lots of the functions in this library are embarrassingly parallel. How should we parallelise them? Ideally with as little impact on the function bodies as possible. Image-chunk-iterators plus https://github.com/nikomatsakis/rayon?

Boundary conditions

3

All the current filter operations treat pixels outside the input image as if we'd extended the boundary pixels indefinitely (i.e. padding "by continuity"). Affine transformations handle pixels whose pre-image is...

Add sharpen operation

2

I'll do this at some point in the next fortnight.

Docs failed to build for 0.19

5

https://docs.rs/crate/imageproc/0.19.0/builds/180949

Check elision of bounds checking for simple loops

6

When checking unsafe usage for https://github.com/image-rs/imageproc/issues/371 I found a few cases where benchmarks showed a speedup from using unsafe getters despite the accesses having the following form: ``` for y...