JpegDecoder Class |
An ImageDecoder used to read JPEG images from a Stream.
Inheritance HierarchyNamespace: Atalasoft.Imaging.Codec
Assembly: Atalasoft.dotImage (in Atalasoft.dotImage.dll) Version: 11.4.0.9.0.377 (.NET 4.5.2, x86)
SyntaxThe JpegDecoder type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | JpegDecoder | Initializes a new instance of a JpegDecoder. |
| JpegDecoder(JpegScaleFactor) | Initializes a new instance of a JpegDecoder specifying the Jpeg scaling factor. |
Properties| Name | Description | |
|---|---|---|
 | ScaleFactor | Gets or sets a value indicating the scale factor to use when reading Jpeg's. |
| SupportedImageType | Obsolete. Returns a Jpeg ImageType enumeration value. (Overrides ImageDecoderSupportedImageType.) |
Methods| Name | Description | |
|---|---|---|
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetBestScale | Gets the best scale given a requested scale factor. For a JPEG, this would result in either 1, 1/2, 1/4,
1/16, or 1/32 |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetImageInfo | Retreive information from a Jpeg image stored in a Stream without decoding the image data. (Overrides ImageDecoderGetImageInfo(Stream).) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| IsValidFormat | Returns true if the specified Stream contains a Jpeg image. |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| Read | Returns an AtalaImage from a Stream containing a Jpeg encoded image. (Overrides ImageDecoderRead(Stream, ProgressEventHandler).) |
| ReadScaled | Gets an AtalaImage of the requested scale. |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
RemarksBy default, when opening a Jpeg image using the AtalaImage or Workspace objects, this decoder will automatically be selected from the %RegisteredDecoders% and does not have to be explicitly set.
Jpeg images can store metadata such as EXIF and IPTC into the images. See the %Atalasoft.Imaging.Metadata% namespace for more information on reading this information from a Jpeg image.
See Also