01: /*
02: * $RCSfile: MedianFilterRIF.java,v $
03: *
04: * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
05: *
06: * Use is subject to license terms.
07: *
08: * $Revision: 1.1 $
09: * $Date: 2005/02/11 04:56:34 $
10: * $State: Exp $
11: */
12: package com.sun.media.jai.opimage;
13:
14: import java.awt.RenderingHints;
15: import java.awt.image.RenderedImage;
16: import java.awt.image.renderable.ParameterBlock;
17: import java.awt.image.renderable.RenderedImageFactory;
18: import javax.media.jai.BorderExtender;
19: import javax.media.jai.ImageLayout;
20: import javax.media.jai.KernelJAI;
21: import java.util.Map;
22: import javax.media.jai.operator.MedianFilterDescriptor;
23: import javax.media.jai.operator.MedianFilterShape;
24:
25: /**
26: * Creates a MedianFilterOpImage subclass for the given input
27: * mask type
28: * @see MedianFilterOpImage
29: */
30: public class MedianFilterRIF implements RenderedImageFactory {
31:
32: /** Constructor. */
33: public MedianFilterRIF() {
34: }
35:
36: /**
37: * Create a new instance of MedianFilterOpImage in the rendered layer.
38: * This method satisfies the implementation of RIF.
39: *
40: * @param paramBlock The source image and the convolution kernel.
41: */
42: public RenderedImage create(ParameterBlock paramBlock,
43: RenderingHints renderHints) {
44: // Get ImageLayout from renderHints if any.
45: ImageLayout layout = RIFUtil.getImageLayoutHint(renderHints);
46:
47: // Get BorderExtender from renderHints if any.
48: BorderExtender extender = RIFUtil
49: .getBorderExtenderHint(renderHints);
50:
51: MedianFilterShape maskType = (MedianFilterShape) paramBlock
52: .getObjectParameter(0);
53: int maskSize = paramBlock.getIntParameter(1);
54: RenderedImage ri = paramBlock.getRenderedSource(0);
55:
56: if (maskType.equals(MedianFilterDescriptor.MEDIAN_MASK_SQUARE)) {
57: return new MedianFilterSquareOpImage(ri, extender,
58: renderHints, layout, maskSize);
59: } else if (maskType
60: .equals(MedianFilterDescriptor.MEDIAN_MASK_PLUS)) {
61: return new MedianFilterPlusOpImage(ri, extender,
62: renderHints, layout, maskSize);
63: } else if (maskType
64: .equals(MedianFilterDescriptor.MEDIAN_MASK_X)) {
65: return new MedianFilterXOpImage(ri, extender, renderHints,
66: layout, maskSize);
67: } else if (maskType
68: .equals(MedianFilterDescriptor.MEDIAN_MASK_SQUARE_SEPARABLE)) {
69: return new MedianFilterSeparableOpImage(ri, extender,
70: renderHints, layout, maskSize);
71: }
72: return null;
73: }
74: }
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