https://github.com/ianbutterworth/imageiodevelopment.jl
Developing better IO for images in Julia via libpng, libjpeg, libtiff etc.
https://github.com/ianbutterworth/imageiodevelopment.jl
Last synced: 4 months ago
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Developing better IO for images in Julia via libpng, libjpeg, libtiff etc.
- Host: GitHub
- URL: https://github.com/ianbutterworth/imageiodevelopment.jl
- Owner: IanButterworth
- License: mit
- Created: 2019-10-27T02:55:18.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2020-03-11T15:56:33.000Z (about 5 years ago)
- Last Synced: 2025-02-08T05:34:17.165Z (4 months ago)
- Language: C
- Homepage:
- Size: 206 KB
- Stars: 6
- Watchers: 2
- Forks: 2
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# ImageIODevelopment.jl
A very WIP attempt at an Image-IO package to directly use libjpegturbo, libtiff, libpng etc. to read/write images
Requires Julia 1.3+
[](https://travis-ci.com/ianshmean/ImageIODevelopment.jl)
[](https://cirrus-ci.com/github/ianshmean/ImageIODevelopment.jl)
[](https://codecov.io/gh/ianshmean/ImageIODevelopment.jl)
# Status
Works for PNGs via the absorption of https://github.com/FugroRoames/LibPNG.jl (which may move to a seperate dep if released, and if API makes sense once this API is built out)
Wrapping Libs:
### libpng
done - loads and validated with tests
### libtiff
done - loads and returns version
### libjpeg
done - loads and returns "No error"
# Benchmarking (WIP)
## PNG reading
```julia
using BenchmarkTools
testimg = "/Users/ian/.julia/dev/ImageIODevelopment/test/temp/rgb_n0f8.png"
@time using FileIO #0.311481 seconds (212.64 k allocations: 12.633 MiB)
@time img1 = load(testimg) #5.867467 seconds (13.37 M allocations: 680.954 MiB, 6.01% gc time)
@btime img1 = load(testimg) #487.182 μs (367 allocations: 21.88 KiB)
@time using ImageIODevelopment #1.287301 seconds (2.25 M allocations: 111.920 MiB, 1.60% gc time)
@time img2 = ModPNG.readimage(testimg) #0.377399 seconds (1.14 M allocations: 57.108 MiB, 3.07% gc time)
@btime img2 = ModPNG.readimage(testimg) #26.236 μs (15 allocations: 992 bytes)
@assert img1 == img2
```
## JPEG writing
`@btime` tests
| | ImageIODevelopment.jl - libturbojpeg | FileIO - QuartzImageIO.jl | FileIO - ImageMagick.jl |
|-------------------------------|---------------------------------------|-----------------------------------------|-----------------------------------------|
| rand(RGB{N0f8}, 10, 20) | 101.484 μs (46 allocations: 2.81 KiB) | 534.594 μs (198 allocations: 12.84 KiB) | 460.599 μs (198 allocations: 12.84 KiB) |
| rand(RGB{N0f8}, 1000, 2000) | 92.338 ms (51 allocations: 5.72 MiB) | 89.069 ms (201 allocations: 22.90 MiB) | 90.524 ms (201 allocations: 22.90 MiB) |
| rand(RGB{N0f8}, 10000, 20000) | 14.329 s (51 allocations: 572.21 MiB) | 9.053 s (201 allocations: 2.24 GiB) | 9.378 s (201 allocations: 2.24 GiB) |