EdgeEnhancementFilter uses the Laplacian 3x3 convolution matrix to highlight areas of rapid intensity change in the picture. These highlights are then subtracted from the original image and as a result a picture with harder edge contrast is produced. This effect is also known as "Edge Enhancement" and is used widely in the video and dvd industry to master films for small tv screens.
Use this to give a low contrast picture more 'punch'.
Parameter | Description | Required | Allowed Values | Default |
---|---|---|---|---|
id | HTML id attribute. | No | [CData] | n/a |
image | Image source URI. | Yes | [URI] | n/a |
encode | Encoding format for the resulting image. | No | [png , gif , jpg , tif , bmp] | Source image format |
width | Image width. | No | [CData] | n/a |
height | Image height. | No | [CData] | n/a |
title | Image title shown on tooltips. | No | [CData] | n/a |
border | Image border width. | No | [CData] | n/a |
cssClass | css class applied to the image tag. | No | [CData] | n/a |
cssStyle | css style directly applied to the image tag. | No | [CData] | n/a |
onclick | Javascript handling for this event. | No | [Javascript] | n/a |
ondblclick | Javascript handling for this event. | No | [Javascript] | n/a |
onmousedown | Javascript handling for this event. | No | [Javascript] | n/a |
onmouseup | Javascript handling for this event. | No | [Javascript] | n/a |
onmouseover | Javascript handling for this event. | No | [Javascript] | n/a |
onmousemove | Javascript handling for this event. | No | [Javascript] | n/a |
onmouseout | Javascript handling for this event. | No | [Javascript] | n/a |
onkeydown | Javascript handling for this event. | No | [Javascript] | n/a |
onkeyup | Javascript handling for this event. | No | [Javascript] | n/a |