Source Code Cross Referenced for InvertDescriptor.java in  » 6.0-JDK-Modules » Java-Advanced-Imaging » javax » media » jai » operator » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » javax.media.jai.operator 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $RCSfile: InvertDescriptor.java,v $
003:         *
004:         * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * Use is subject to license terms.
007:         *
008:         * $Revision: 1.1 $
009:         * $Date: 2005/02/11 04:57:37 $
010:         * $State: Exp $
011:         */
012:        package javax.media.jai.operator;
013:
014:        import java.awt.RenderingHints;
015:        import java.awt.image.RenderedImage;
016:        import java.awt.image.renderable.RenderableImage;
017:        import javax.media.jai.JAI;
018:        import javax.media.jai.OperationDescriptorImpl;
019:        import javax.media.jai.ParameterBlockJAI;
020:        import javax.media.jai.RenderableOp;
021:        import javax.media.jai.RenderedOp;
022:        import javax.media.jai.registry.RenderableRegistryMode;
023:        import javax.media.jai.registry.RenderedRegistryMode;
024:
025:        /**
026:         * An <code>OperationDescriptor</code> describing the "Invert" operation.
027:         *
028:         * <p> The "Invert" operation inverts the pixel values of an image.
029:         * For source images with signed data types, the pixel values of the
030:         * destination image are defined by the pseudocode:
031:         *
032:         * <pre>dst[x][y][b] = -src[x][y][b]</pre>
033:         *
034:         * <p> For unsigned data types, the destination values are defined by:
035:         *
036:         * <pre>dst[x][y][b] = MAX_VALUE - src[x][y][b]</pre>
037:         *
038:         * where <code>MAX_VALUE</code> is the maximum value supported by the
039:         * system of the data type of the source pixel.
040:         *
041:         * <p><table border=1>
042:         * <caption>Resource List</caption>
043:         * <tr><th>Name</th>        <th>Value</th></tr>
044:         * <tr><td>GlobalName</td>  <td>Invert</td></tr>
045:         * <tr><td>LocalName</td>   <td>Invert</td></tr>
046:         * <tr><td>Vendor</td>      <td>com.sun.media.jai</td></tr>
047:         * <tr><td>Description</td> <td>Invert the pixel values of an image.</td></tr>
048:         * <tr><td>DocURL</td>      <td>http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/InvertDescriptor.html</td></tr>
049:         * <tr><td>Version</td>     <td>1.0</td></tr>
050:         * </table></p>
051:         *
052:         * <p> No parameters are needed for the "Invert" operation.
053:         *
054:         * @see javax.media.jai.OperationDescriptor
055:         */
056:        public class InvertDescriptor extends OperationDescriptorImpl {
057:
058:            /**
059:             * The resource strings that provide the general documentation
060:             * and specify the parameter list for this operation.
061:             */
062:            private static final String[][] resources = {
063:                    { "GlobalName", "Invert" },
064:                    { "LocalName", "Invert" },
065:                    { "Vendor", "com.sun.media.jai" },
066:                    { "Description", JaiI18N.getString("InvertDescriptor0") },
067:                    {
068:                            "DocURL",
069:                            "http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/InvertDescriptor.html" },
070:                    { "Version", JaiI18N.getString("DescriptorVersion") } };
071:
072:            /** Constructor. */
073:            public InvertDescriptor() {
074:                super (resources, 1, null, null, null);
075:            }
076:
077:            /** Returns <code>true</code> since renderable operation is supported. */
078:            public boolean isRenderableSupported() {
079:                return true;
080:            }
081:
082:            /**
083:             * Inverts the pixel values of an image.
084:             *
085:             * <p>Creates a <code>ParameterBlockJAI</code> from all
086:             * supplied arguments except <code>hints</code> and invokes
087:             * {@link JAI#create(String,ParameterBlock,RenderingHints)}.
088:             *
089:             * @see JAI
090:             * @see ParameterBlockJAI
091:             * @see RenderedOp
092:             *
093:             * @param source0 <code>RenderedImage</code> source 0.
094:             * @param hints The <code>RenderingHints</code> to use.
095:             * May be <code>null</code>.
096:             * @return The <code>RenderedOp</code> destination.
097:             * @throws IllegalArgumentException if <code>source0</code> is <code>null</code>.
098:             */
099:            public static RenderedOp create(RenderedImage source0,
100:                    RenderingHints hints) {
101:                ParameterBlockJAI pb = new ParameterBlockJAI("Invert",
102:                        RenderedRegistryMode.MODE_NAME);
103:
104:                pb.setSource("source0", source0);
105:
106:                return JAI.create("Invert", pb, hints);
107:            }
108:
109:            /**
110:             * Inverts the pixel values of an image.
111:             *
112:             * <p>Creates a <code>ParameterBlockJAI</code> from all
113:             * supplied arguments except <code>hints</code> and invokes
114:             * {@link JAI#createRenderable(String,ParameterBlock,RenderingHints)}.
115:             *
116:             * @see JAI
117:             * @see ParameterBlockJAI
118:             * @see RenderableOp
119:             *
120:             * @param source0 <code>RenderableImage</code> source 0.
121:             * @param hints The <code>RenderingHints</code> to use.
122:             * May be <code>null</code>.
123:             * @return The <code>RenderableOp</code> destination.
124:             * @throws IllegalArgumentException if <code>source0</code> is <code>null</code>.
125:             */
126:            public static RenderableOp createRenderable(
127:                    RenderableImage source0, RenderingHints hints) {
128:                ParameterBlockJAI pb = new ParameterBlockJAI("Invert",
129:                        RenderableRegistryMode.MODE_NAME);
130:
131:                pb.setSource("source0", source0);
132:
133:                return JAI.createRenderable("Invert", pb, hints);
134:            }
135:        }
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