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See:
Description
| Interface Summary | |
|---|---|
| Image | Image represents an image that can be manipulated by the
ImagesService. |
| ImagesService | The images service provides methods to apply transformations to images. |
| Class Summary | |
|---|---|
| Composite | A Composite represents a composition of an image onto a canvas. |
| CompositeTransform | A transform that represents zero or more transforms executed in series. |
| ImagesServiceFactory | Factory for creating an ImagesService, Images and
Transforms. |
| InputSettings | InputSettings represents the different settings to specify how
an Image is interpreted by a transform. |
| OutputSettings | OutputSettings represents the different settings to specify how
a particular transform or composite will return an Image. |
| ServingUrlOptions | Allow users to customize the behavior of creating a image serving URL using
the ImagesService. |
| ServingUrlOptions.Builder | Contains static creation methods for ServingUrlOptions. |
| Transform | A transform that can be applied to an Image. |
| Enum Summary | |
|---|---|
| Composite.Anchor | Valid anchoring positions for a compositing operation. |
| Image.Format | Image formats usable by the images api. |
| ImagesService.OutputEncoding | Valid output encoding formats usable for image transforms. |
| InputSettings.OrientationCorrection | Actions to take with respect to correcting image orientation based on image metadata. |
| Exception Summary | |
|---|---|
| ImagesServiceFailureException | ImagesServiceFailureException is thrown when any unknown
error occurs while communicating with the images service. |
Provides facilities for the creation and manipulation of images.
The starting point is the
ImagesServiceFactory class, which
can produce the ImagesService, but
also the basic Image object and
Transform classes. More
information is available in the
on-line
documentation.
Image data is represented as a byte[] of data, in any of
the supported formats: JPEG, PNG, GIF (including animated GIF),
BMP, TIFF, and ICO formats. The format can be accessed via the
Image.getFormat()
method. The image format may be converted during transformation.
Supported transformations include cropping, resizing, rotating in 90-degree increments, horizontal and vertical flips, and automated color enhancement.
ImagesService,
The Images Java API in the Google App Engine Developer's Guide.
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