Class jala.ImageFilter

Object
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   +--jala.ImageFilter

class jala.ImageFilter

This class provides several image manipulating methods. Most of this filter library is based on filters created by Janne Kipinä for JAlbum. For more information have a look at http://www.ratol.fi/~jakipina/java/
Defined in ImageFilter.js

Constructor Detail

jala.ImageFilter

jala.ImageFilter(<Object> img)

Constructs a new ImageFilter object

Parameters:
img - Either
• an instance of helma.image.ImageWrapper
• the path to the image file as String
• an instance of helma.File representing the image file
• an instance of java.io.File representing the image file

gaussianBlur

void gaussianBlur(<Number> radius, <Number> amount)

Performs a gaussian blur operation on the image

Parameters:
radius - The radius
amount - The amount

getBytes

byte[] getBytes()

Returns the wrapped image as byte array, to use eg. in conjunction with res.writeBinary()

Returns:
The wrapped image as byte array

getImage

helma.image.ImageWrapper getImage()

Returns the image that has been worked on

Returns:
An instance of helma.image.ImageWrapper

sharpen

void sharpen(<Number> amount)

Sharpens the image using a plain sharpening kernel.

Parameters:
amount - The amount of sharpening to apply

unsharpMask

void unsharpMask(<Number> radius, <Number> amount)

Performs an unsharp mask operation on the image

Parameters:
radius - The radius
amount - The amount