.FLIF 文件扩展名
Free Lossless Image Format File
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什么是 FLIF 文件？
A FLIF file is an image saved in the Free Lossless Image Format (FLIF). It contains an image or animation and uses lossless compression. FLIF files are used to store a variety of images such as photographs, geographical maps, and medical images.
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FLIF is an alternative to PNG, WebP, JPEG2000, JPEG-LS, lossless JPEG XR, MNG, APNG, GIF, and lossless BPG formats and boasts a better compression ratio. The format supports RGB, RGBA, and grayscale with a color depth of 1 to 16 bits per channel.
The FLIF format is made up of 4 parts:
- Main header - Contains metadata about the image, such as the height, width, depth, and number of frames.
- Optional metadata chunks - Contains non-pixel data, which includes an ICC color profile, encoded with DEFLATE compression.
- Second header - Contains information detailing how the pixel data is encoded.
- Pixel data - Contains pixel information encoded with MANIAC entropy coding.
More information about the format can be found here.
注: The FLIF format was originally released in October of 2015 as an alpha release. The first stable version was released in September 2016.