lepton
exiftool
lepton | exiftool | |
---|---|---|
5 | 249 | |
5,001 | 2,860 | |
- | 2.8% | |
1.8 | 7.0 | |
over 1 year ago | 10 days ago | |
C++ | Perl | |
Apache License 2.0 | GNU General Public License v3.0 only |
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lepton
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JPEG XL: How It Started, How It’s Going
JPEG XL can losslessy transcode JPEG into a smaller format. JPEG2000 (or WebP or anything but Lepton[0]) didn't offer that. Besides, we have gif and png for approximately the same space. gif still isn't gone. Displacement isn't necessary for a new format to become useful.
[0] https://github.com/dropbox/lepton
- Jpeg Compression with Dropbox's Lepton
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Too bad this isn’t digitized. Would totally hoard it!
We also use https://github.com/dropbox/lepton to save disk storage. It give 20% saving in our experience.
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Questions about establishing a photography backup/storage system
It may not be directly related to your question, but Dropbox has developed a great open source software called Lepton. It is able to compress JPEGs losslessly and saves on average about 22% of storage space. The files are not readable after compression without decompression, but since your focus seems to be on archiving anyway, it might be handy. And for larger collections of high-resolution images, it can actually save a decent amount of storage space.
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AVIF support enabled by default in Firefox 86
Just wondering, is there a "lossless" conversion from PNG/JPEG/etc to AVIF? Kinda like Lepton[1] but just re-compressing without further loss of details.
[1] https://github.com/dropbox/lepton
exiftool
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Ask HN: Best to store, index and categorize audio recordings
If you're doing a pipelined bulk processing pass to add metadata tags after extracting them via Speech to text, or have delimited notes in a text file, or ... etc.
You might find ExifTool useful.
It's pure commandline (with a few third party GUI's IIRC) multiplatform and purpose built to display, edit, add media tags to all sorts of AV files.
https://exiftool.org/
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Cleaning up my 200GB iCloud with some JavaScript
> Any method that I've found to clean them up (exporting the originals, deleting them from the library, and then re-importing the JPEGs only seems easiest) will lose all of the years of metadata that I've built up in the library.
The open source tool osxphotos (https://github.com/RhetTbull/osxphotos) can help with this. You can export the JPEG images while preserving metadata using the thrid-party exiftool utility:
`osxphotos export /path/to/export --has-raw --skip-raw --exiftool`
This exports all images that have a raw pair but skips the raw component then uses exiftool (https://exiftool.org/) to write the metadata (keywords, etc.) to the exported JPEG files. You can then re-import these into photos either by dragging them or by running `osxphotos import /path/to/export/*`
Both the export and import commands have many other options for controlling export directory, etc. `osxphotos help export` or `osxphotos docs` to open docs in browser. (Disclaimer: I'm the author of osxphotos)
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Is there a way to remove metadata from an image file?
Check out exiftool.org
- EXIF Data from Cloud Stock Photo Used for Production of Satellite Video
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Locationator: Access Apple's Reverse Geocoding service from the command line, Services menu
Locationator also comes with an optional CLI that can be used to perform reverse geocoding on images from the command line or perform the reverse geocoding and then write the location data to the file's XMP metadata using exiftool. It also comes with two services for doing the same from the Finder or other apps using the Services menu.
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Modifying "Media Creation Date" metadata in .m4v files?
Edit: Nevermind, I got it. I used PyExifTool and installed exiftool from exiftool.org.
- Exploring EXIF
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Canon PowerShot S95
May not work as not all camera store the serial number in the EXIF, but if you've got exiftool installed you can try running:
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JPEG XL: How It Started, How It’s Going
I think TIFF has some unique features that makes it more prone to certain security issues[1] compared to other formats, such as storing absolute file offsets instead of relative offsets. So I am not sure TIFF is a good container format, but many camera raws are TIFF-based for some reason.[2]
[1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=libtiff
[2] https://exiftool.org/#supported (search for "TIFF-based")
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How to keep file creation dates intact when importing to DSM?
I have struggled with this in the past, and I found the utility called exiftool quite useful.
What are some alternatives?
brunsli - Practical JPEG Repacker
exiv2 - Image metadata library and tools
ImageMagick - 🧙♂️ ImageMagick 7
jExifToolGUI - jExifToolGUI is a multi-platform java/Swing graphical frontend for the excellent command-line ExifTool application by Phil Harvey
zpaqfranz - Deduplicating archiver with encryption and paranoid-level tests. Swiss army knife for the serious backup and disaster recovery manager. Ransomware neutralizer. Win/Linux/Unix
exifcleaner - Cross-platform desktop GUI app to clean image metadata
kanzi-cpp - Fast lossless data compression in C++
HomeBrew - 🍺 The missing package manager for macOS (or Linux)
Racjin-de-compression - Compression and decompression algorithms used in old PS2/PSP/Wii games by Racjin
FFmpeg - Mirror of https://git.ffmpeg.org/ffmpeg.git
compressonator - Tool suite for Texture and 3D Model Compression, Optimization and Analysis using CPUs, GPUs and APUs
DiffusionToolkit - Metadata-indexer and Viewer for AI-generated images