### 5.54. Export Image as WebP

#### 5.54.1. 预览

图 15.95. The WebP Export dialog

#### 5.54.2. Options

Source Type

  This selects the type of image you are trying to export. Presumably this will help in deciding the best way to compress the image.

  Choices are: Default, Picture for digital pictures, like portraits or inside shots, Photo for outdoor photography with natural lighting, Drawing for hand or line drawing, with high-contrast details, Icon for small-sized colorful images, and Text for images containing mostly text.

Lossless

  When checked, the image will be saved in a way that keeps the original quality. This disables the Image quality and Alpha quality settings. When unchecked, the image will be saved based on the quality settings below, which may cause some loss of quality, but at a better compression ratio. This is the default.

Image quality, Alpha quality

  These settings determine at what quality the image will be saved. A higher image quality usually means a larger filesize. When filesize is important you can check if a lower quality is still good enough for your purposes.

Use Sharp YUV

  When checked, a sharper and more accurate RGB to YUV conversion method is used to export the image. This can better preserve fine details like thin lines in the final image. Setting this option can increase the export time for an image, and it is only available when Lossless is not checked.

Save animation

  When enabled, an animation will be created, where each layer is a separate frame in the animation.

  When working on an animation, the name of the layer can be used to specify certain parameters. For more details see exporting animations.

Metadata (edit)

  You can click the “(edit)” link to open the metadata editor to change or add any metadata that you want to be included in the image. Note: you will also still need to enable the relevant metadata saving options listed below.

  The metadata settings in the export dialog override the default values set in your Metadata Export Preferences.

Save Exif data

  When this option is enabled, EXIF metadata will be saved in the exported image.

Save IPTC data

  When this option is enabled, IPTC metadata will be saved in the exported image.

Save XMP data

  When this option is enabled, XMP metadata will be saved in the exported image.

Save color profile

  When this option is enabled, the color profile will be saved in the exported image.

Save thumbnail

  When this option is enabled a thumbnail will be saved in the exported image as part of the EXIF metadata. This will also cause certain EXIF tags to be saved, even if you have disabled saving EXIF metadata.

5.53. Export Image as Playstation TIM |  | 5.55. Export Image as X BitMap

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