Adobe Photoshop CS5 Object Library JS: Channel

Class

Channel

 Object that stores information about a color element in the image, analogous to a plate in the printing process that applies a single color. The document's color mode determines the number of default channels. For example, an RGB document has four default channels: A composite channel: RGB; and three component channels: red, green, and blue. A channel can also be an alpha channel, which stores selections as masks; or a spot channel, which stores spot colors.

QuickLinks

duplicate, duplicate, merge, remove, removeAll

Hierarchy

Object

Channel

Properties

Property	Type	Access	Description
color	SolidColor	r/w	The color of the channel. Not valid for component channels.
histogram	Array of int	readonly	A histogram of the color of the channel.
kind	ChannelType: ChannelType.COMPONENT ChannelType.MASKEDAREA ChannelType.SELECTEDAREA ChannelType.SPOTCOLOR	r/w	The type of channel.
name	string	r/w	The channel name.
opacity	number	r/w	The opacity of alpha channels (called solidity for spot channels). Range: 0 to 100. Valid only when 'type' = masked area or selected area.
parent	Object	readonly	The object's container.
typename	string	readonly	The class name of the object.
visible	bool	r/w	If true, the channel is visible.

Methods

Instances

Channel duplicate (relativeObject: Object, insertionLocation: ElementPlacement)
Duplicate this object.

Parameter	Type	Description
relativeObject	Object
insertionLocation	ElementPlacement: ElementPlacement.PLACEAFTER ElementPlacement.PLACEBEFORE ElementPlacement.PLACEATEND

Channel duplicate ([targetDocument: Document])
Duplicates the channel.

Parameter	Type	Description
targetDocument	Document	The document to duplicate the channel to. (Optional)

void merge ()
Merges a spot channel into the component channels.

void remove ()
Deletes this object.

void removeAll ()
Deletes all elements.

Element of

Document.activeChannels

Document.componentChannels

LayerSet.enabledChannels

Used in:

void Document.autoCount (channel: Channel, threshold: int)

void Selection.load (from: Channel[, combination: SelectionType=SelectionType.REPLACE][, inverting: bool=false])

void Selection.store (into: Channel[, combination: SelectionType=SelectionType.REPLACE])

Return

Channel Channel.duplicate (relativeObject: Object, insertionLocation: ElementPlacement)

Channel Channel.duplicate ([targetDocument: Document])

Channel Channels.[] (index: uint)

Channel Channels.add ()

Channel Channels.getByName (name: string)

Jongware, 28-Aug-2012 v3.0.3i

Contents :: Index