JPEGXREncoderOptions

Package	flash.display
Class	public final class JPEGXREncoderOptions
Inheritance	JPEGXREncoderOptions Object

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 11.3, AIR 3.3

The JPEGXREncoderOptions class defines a compression algorithm for the flash.display.BitmapData.encode() method.

More examples

Compressing bitmap data

Related API Elements

flash.display.BitmapData
flash.display.BitmapData.encode()
flash.display.BitmapEncodingColorSpace

Public Properties

	Property		Defined By
		colorSpace : String Specifies how color channels are sampled.	JPEGXREncoderOptions
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		quantization : uint Specifies the amount of lossy in the compression.	JPEGXREncoderOptions
		trimFlexBits : uint Determines the amount of extra entropy data that is cut after quantization.	JPEGXREncoderOptions

Public Methods

	Method		Defined By
		JPEGXREncoderOptions(quantization:uint = 20, colorSpace:String = "auto", trimFlexBits:uint = 0) Creates a JPEGEXREncoderOptions object with the specified settings.	JPEGXREncoderOptions
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object

Property Detail

colorSpace

property

public var colorSpace:String

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 11.3, AIR 3.3

Specifies how color channels are sampled. For more information, see flash.display.BitmapEncodingColorSpace.

Related API Elements

flash.display.BitmapEncodingColorSpace

quantization

property

public var quantization:uint

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 11.3, AIR 3.3

Specifies the amount of lossy in the compression. The range of values is 0 to 100, where a value of 0 means lossless compression. Larger values increase the lossy value and the resultant image becomes more grainy. A common value is 10. For values of 20 or larger, the image can become very grainy.

trimFlexBits

property

public var trimFlexBits:uint

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 11.3, AIR 3.3

Determines the amount of extra entropy data that is cut after quantization. This property can affect image quality, and is typically left at the default value.

Constructor Detail