Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.4.0 - 2020-07-18

Added

Output grayscale JPEGs when possible. These are smaller than color JPEGs.
Add background color if output format doesn't support transparency. Set the background color using --background-color option.
Handle Exif orientation of input file. Rotate and flip the image data accordingly.
Add --spread option to configure quality spread. For example --quality 80 --spread 10 will target JPEG quality of 80 with the minimum quality of 70 and maximum quality of 90.

Changed

Enable WebP sharp YUV option. This results in sharper images with a bit of additional processing time and file size. For more information, see https://www.ctrl.blog/entry/webp-sharp-yuv.html

Removed

--input-format option is not needed anymore because input format is automatically detected based on magic number.

Fixed

Support non-UTF-8 filenames

0.3.1 - 2020-06-22

Changed

By default --min and --max are now calculated based on the given --quality

Fixed

Fix version number

0.3.0 - 2020-06-13

Added

Add --quality which defines a JPEG-like quality target
Provide glibc-based Linux binary which is about 50% faster than the musl version

Removed

--target is removed, use --quality instead

Fixed

Make file extension check case-insensitive

0.2.1 - 2020-04-08

Added

More documentation
Provide macOS binary

0.2.0 - 2020-02-10

Added

Support standard input and output

Changed

Output file is now specified with --output option

0.1.4 - 2019-08-25

Changed

Fancy output format

Fixed

Fix WebP SSIM calculation
Fix program hang when input and output are same file

0.1.3 - 2019-08-25

Fixed

Fix JPEG reading

0.1.2 - 2019-08-25

Added

Add transparency support

0.1.1 - 2019-08-25

Changed

Increase WebP compression quality

0.1.0 - 2019-08-23

Added

Initial release