qoi
Pure Go encoder/decoder of the QOI image format (by xfmoulet)
rawloader
rust library to extract the raw data and some metadata from digital camera images (by pedrocr)
| qoi | rawloader | |
|---|---|---|
| 2 | 3 | |
| 64 | 293 | |
| - | - | |
| 0.0 | 5.4 | |
| over 2 years ago | about 1 month ago | |
| Go | Rust | |
| MIT License | GNU Lesser General Public License v3.0 only |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
qoi
Posts with mentions or reviews of qoi.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-11-24.
-
Lossless Image Compression in O(n) Time
Go version: https://github.com/xfmoulet/qoi
- QOI: Lossless Image Compression in O(n) Time
rawloader
Posts with mentions or reviews of rawloader.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-13.
-
Announcing: ImageSieve, a tool to assist in sorting and archiving images and videos
I absolutely loved all the crates available that made my life very simple in many cases. I used (among others) the slint ui framework, kamadak-exif, img_hash, fast_image_resize and rawloader.
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QOI: Lossless Image Compression in O(n) Time
The simplest form is just to pack 10 or 12 bit values. There's all kinds of variations of that:
https://github.com/pedrocr/rawloader/blob/a59bb78d156277781a...
There are a few formats that use a curve and less bits. They do become lossy and doing dithering on decompress is useful to avoid banding.
The Nikon one you mention was only used very early and is decoded by decode_8bit_wtable() in that file. It's just looking up the 8 bit value in the table and then adding some randomness to prevent the banding.
What are some alternatives?
When comparing qoi and rawloader you can also consider the following projects:
Zpng - Better lossless compression than PNG with a simpler algorithm
dnglab - Camera RAW to DNG file format converter