How to extend JImageTaglib to create new filters?
net.sourceforge.jimagetaglib.InterfaceFilter is the base interface for implementing
new filters classes. Implementing this interface, you will need to implement the
"apply" method, which receives a BufferedImage and returns the BufferedImage with
the filter applied. All you need to do is to implement this method, so your class
you be able to be used by the "filter" tag.
Example:
public BufferedImage apply(BufferedImage origin) {
float[] edgeKernel = { 0.0f, -1.0f, 0.0f, -1.0f, 4.0f, -1.0f, 0.0f, -1.0f, 0.0f };
BufferedImageOp op = (BufferedImageOp) new ConvolveOp(new Kernel(3, 3, edgeKernel));
return op.filter(origin, null);
}
See javadoc and Sun's
Java2D page for details.
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