format

Specifies the format to use for this image version.

Syntax

<format
    name="(jpeg|jpg|gif|png|wbmp)"?
    ( quality="..." | compression="..." )?
    sharpen="..."?
  />

Attributes

name="(jpeg|jpg|gif|png|wbmp)" (optional)

Allowed values are:

jpeg (default): JPEG is a lossy compressed image format, mainly intended for photographic images.
jpg: A synonym for jpeg.
gif: GIF is a compact image format, mainly intended for non-photographic images such as charts and diagrams).
png: PNG is a compact image format, mainly intended for non-photographic images such as charts and diagrams.
wbmp: WBMP is a monochrome image format intended for low-bandwidth mobile applications. WBMP is the standard image format for use in WAP applications.

quality="..." (optional)

The image quality level to be applied when generating this version. It is only used when format is set to JPEG. The value specified must be a number between 0.0 (lowest quality) and 1.0 (highest quality). The default is 0.7.

compression="..." (optional)

Deprecated. This attribute is a synonym for quality, but should not be used: use quality instead.

sharpen="..." (optional)

The sharpening level to be applied when generating this version. Sharpening is an image processing algorithm that can improve blurred or unclear images. The value specified must be a number between 0.0 (no sharpening) and 1.0 (maximum sharpening). The default is 0.0 (no sharpening).