Algorithms | Preview | References |
---|---|---|
L0Smooth() |
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Image Smoothing via L0 Gradient Minimization |
juliaimages / imagesmooth.jl Goto Github PK
View Code? Open in Web Editor NEWImage smoothing algorithms
License: MIT License
Image smoothing algorithms
License: MIT License
Tweaking performance can be very difficult and there's no plan to investigate this issue. Running profiler gives me two suspicious performance hotspot
ImageFiltering.freqkernel
: https://github.com/johnnychen94/ImageSmooth.jl/blob/1cb03e8949585e3431095e5869e706175df8e103/src/algorithms/l0_smooth.jl#L117-L118fft!
on complex number: https://github.com/johnnychen94/ImageSmooth.jl/blob/1cb03e8949585e3431095e5869e706175df8e103/src/algorithms/l0_smooth.jl#L159-L163We haven't make sure it passes the OffsetArray test in #1
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I'll open a PR within a few hours, please be patient!
This algorithm can be expected to run 10x-100x faster if implemented in GPU.
I'm quite excited to see this package, nice work @JKay0327 and @johnnychen94.
I'm curious about the right way to handle the comparison to smoothing operations like Gaussian blur. There seem to be at least two options:
LinearBlur(ฯ...)
algorithm here that is just a convenience method to imfilter
with a KernelFactors.gaussian
kernelI'd be happy to make a PR at some point, but I thought it would be best to hear which of these you think makes more sense. I'd be happy with either outcome.
There exists a series of nice work on smoothing filters that I think we can easily bring to Julia:
cc: @wliusjtu
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