What's new in JPEG Archive 2.1.1
Jul 13, 2018
- This release fixes an issue on Windows and adds a quiet mode.
- Fix input/output using stdin/stdout on Windows by setting the stream to binary mode.
- Add a --quiet option to turn off non-error output.
New in JPEG Archive 2.1.0 (Jul 13, 2018)
- This release adds the ability to disable subsampling and updates the underlying mozjpeg library.
- Add the --subsample parameter which can be used with the value disable to turn off subsampling. By default 4:2:0 mode is used (which subsamples chroma channels 2x1). Disabling it turns on 4:4:4 mode which may be desired for certain use-cases but is generally not required.
- Update to the official mozjpeg 3.0 release. This provides an extra 1-2% compression advantage at the same encoding quality and speed.
- Set up Windows CI so that Windows users can always grab the latest binary from the Windows CI build server
New in JPEG Archive 2.0.1 (Jul 13, 2018)
- This patch release updates to upstream releases, introduces some speed improvements and contains a handful of minor fixes to tests and documentation.
- Update to latest mozjpeg
- Speed up --accurate mode
- make install now installs jpeg-archive script
- Run real-world file tests by default
- Fix several compiler warnings
New in JPEG Archive 2.0.0 (Jul 13, 2018)
- This release changes the underlying JPEG encoding library to mozjpeg and defaults to progressive encoding. On average, the output of jpeg-recompress is now around 5-10% smaller, but the exact amount will vary based on input images. Also included are new metrics and input options.
- Add jpeg-archive bash script to help automate archiving images
- Switch to mozjpeg. Output is now progressive by default
- Add SmallFry metric (similar to JPEGMini)
- Add MPE (mean pixel error) metric (similar to imgmin)
- By default, copy files that will not be compressed (disable with --no-copy)
- Add support for PPM input in jpeg-compare to compare PPM with JPEG
- Documentation updates
New in JPEG Archive 1.1.0 (Jul 13, 2018)
- Fixed a bug related to reading from STDIN and added the ability to send PPM image data (instead of JPEG input) to jpeg-recompress using the --ppm option. This makes jpeg-recompress a replacement for cjpeg for creating JPEG files at a certain perceived quality. Example using ImageMagick's convert utility:
New in JPEG Archive 1.0.1 (Jul 13, 2018)
- Fixes a bug related to grayscale image conversion used during SSIM calculations.