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Improve wording around alpha optimization

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Andrew 2023-09-30 15:47:37 +13:00
parent db7f238507
commit 0d7a29ab39
1 changed files with 3 additions and 3 deletions
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README.md
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@ -38,7 +38,7 @@ Oxipng follows Semantic Versioning.
## Usage ## Usage
Oxipng is a command-line utility. Basic usage looks similar to the following: Oxipng is a command-line utility. An example suitable for web usage may be the following:
``` ```
oxipng -o 4 --alpha --strip safe *.png oxipng -o 4 --alpha --strip safe *.png
@ -50,8 +50,8 @@ The most commonly used options are as follows:
The default (`-o 2`) is quite fast and provides good compression. Higher levels can be notably The default (`-o 2`) is quite fast and provides good compression. Higher levels can be notably
better but generally have increasingly diminishing returns. better but generally have increasingly diminishing returns.
- Alpha: `--alpha` can improve compression of images with transparency, by altering the color - Alpha: `--alpha` can improve compression of images with transparency, by altering the color
values of fully transparent pixels. This is generally recommended, unless you have a particular values of fully transparent pixels. This is generally recommended, but take care as this is
need to preserve the original color values. technically a lossy transformation and may be unsuitable for some specific applications.
- Strip: Used to remove metadata info from processed images. Used via `--strip [safe,all]`. - Strip: Used to remove metadata info from processed images. Used via `--strip [safe,all]`.
Can save a few kilobytes if you don't need the metadata. "Safe" removes only metadata that Can save a few kilobytes if you don't need the metadata. "Safe" removes only metadata that
will never affect rendering of the image. "All" removes all metadata that is not critical will never affect rendering of the image. "All" removes all metadata that is not critical