Photoshop 7.0 Scripting Guide
74
Scripting Photoshop
Working with Filters
3
3.12 Working with Filters
To apply a filter, use the layer's
filter
command for AppleScript or the
ApplyXXX/applyXXX
methods for Visual Basic and JavaScript. The following examples
apply the Gaussian blur filter to the active layer.
AS:
filter current layer of current document using Gaussian blur ¬
with options { radius: 5 }
VB:
docRef.ActiveLayer.ApplyGaussianBlur 5
JS:
docRef.activeLayer.applyGaussianBlur(5);
3.12.1 Selecting channel(s) to filter
When applying filters, keep in mind they affect the selected channels of a visible layer. This
means that prior to running a filter, you may have to set the active channels. Since more than
one channel can be active at a time, you must provide an array of channels when setting a
channel. The code below demonstrates how to set the active channels to the channels named
“Red” and “Blue.”
AS:
set current channels of current document to { channel "Red" of ¬
current document, channel "Blue" of current document }
VB:
Dim theChannels As Variant
theChannels = Array(docRef.Channels("Red"), docRef.Channels("Blue"))
docRef.ActiveChannels = theChannels
JS:
theChannels = new Array(docRef.channels["Red"],
docRef.channels["Blue"]);
docRef.activeChannels = theChannels;
Or you can easily select all component channels by using the “component channel” property
on the document:
AS:
set current channels of current document to component channels ¬
of current document