imageworker.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Boolean.html#FALSE" title="class or interface in java.lang"><CODE>FALSE</CODE></A>, image operators are not allowed to
 produce tiled images. </TD>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<B>Constructor Summary</B></FONT></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#ImageWorker()">ImageWorker</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a new uninitialized builder for an image read.</TD>
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<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#ImageWorker(java.io.File)">ImageWorker</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/File.html" title="class or interface in java.io">File</A>&nbsp;input)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a new builder for an image read from the specified file.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#ImageWorker(java.awt.image.RenderedImage)">ImageWorker</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/RenderedImage.html" title="class or interface in java.awt.image">RenderedImage</A>&nbsp;image)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Creates a new builder for the specified image. </TD>
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<!-- ========== METHOD SUMMARY =========== -->

<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TD COLSPAN=2><FONT SIZE="+2">
<B>Method Summary</B></FONT></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#addImage(java.awt.image.RenderedImage)">addImage</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/RenderedImage.html" title="class or interface in java.awt.image">RenderedImage</A>&nbsp;renderedImage)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 The Add operation takes two rendered or renderable source images, and
 adds every pair of pixels, one from each source image of the
 corresponding position and band. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#addTransparencyToIndexColorModel(java.awt.image.RenderedImage, boolean)">addTransparencyToIndexColorModel</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/RenderedImage.html" title="class or interface in java.awt.image">RenderedImage</A>&nbsp;alphaChannel,
                                 boolean&nbsp;errorDiffusion)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds transparency to a preexisting image whose color model is
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/IndexColorModel.html" title="class or interface in java.awt.image">index color model</A>. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#addTransparencyToIndexColorModel(java.awt.image.RenderedImage, boolean, int, boolean)">addTransparencyToIndexColorModel</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/RenderedImage.html" title="class or interface in java.awt.image">RenderedImage</A>&nbsp;alphaChannel,
                                 boolean&nbsp;translucent,
                                 int&nbsp;transparent,
                                 boolean&nbsp;errorDiffusion)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adds transparency to a preexisting image whose color model is
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/IndexColorModel.html" title="class or interface in java.awt.image">index color model</A>. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#bandMerge(int)">bandMerge</A></B>(int&nbsp;writeband)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Add the bands to the Component Color Model</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#binarize()">binarize</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Binarizes the <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A>. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#binarize(double)">binarize</A></B>(double&nbsp;threshold)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Binarizes the <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A>. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#binarize(int, int)">binarize</A></B>(int&nbsp;value0,
         int&nbsp;value1)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Binarizes the <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A> (if not already done) and replace all 0
 values by  and all 1 values by . </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#forceBitmaskIndexColorModel()">forceBitmaskIndexColorModel</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reduces the color model to <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/IndexColorModel.html" title="class or interface in java.awt.image">index color model</A>
 with <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Transparency.html#OPAQUE" title="class or interface in java.awt">opaque</A> or
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Transparency.html#BITMASK" title="class or interface in java.awt">bitmask</A> transparency. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#forceBitmaskIndexColorModel(int, boolean)">forceBitmaskIndexColorModel</A></B>(int&nbsp;transparent,
                            boolean&nbsp;errorDiffusion)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reduces the color model to <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/IndexColorModel.html" title="class or interface in java.awt.image">index color model</A>
 with <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Transparency.html#OPAQUE" title="class or interface in java.awt">opaque</A> or
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Transparency.html#BITMASK" title="class or interface in java.awt">bitmask</A> transparency. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#forceColorSpaceGRAYScale()">forceColorSpaceGRAYScale</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Forces the <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A> color model to the
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/color/ColorSpace.html#CS_GRAY" title="class or interface in java.awt.color">GRAYScale color space</A>. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#forceColorSpaceRGB()">forceColorSpaceRGB</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Forces the <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A> color model to the
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/color/ColorSpace.html#CS_sRGB" title="class or interface in java.awt.color">RGB color space</A>. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#forceComponentColorModel()">forceComponentColorModel</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reformats the <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/ColorModel.html" title="class or interface in java.awt.image">color model</A> to a
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/ComponentColorModel.html" title="class or interface in java.awt.image">component color model</A> preserving
 transparency. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#forceComponentColorModel(boolean)">forceComponentColorModel</A></B>(boolean&nbsp;checkTransparent)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reformats the <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/ColorModel.html" title="class or interface in java.awt.image">color model</A> to a
 <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/ComponentColorModel.html" title="class or interface in java.awt.image">component color model</A> preserving
 transparency. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#forceIndexColorModel(boolean)">forceIndexColorModel</A></B>(boolean&nbsp;error)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reduces the color model to <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/image/IndexColorModel.html" title="class or interface in java.awt.image">index color model</A>.
 </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#forceIndexColorModelForGIF(boolean)">forceIndexColorModelForGIF</A></B>(boolean&nbsp;errorDiffusion)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Converts the image to a GIF-compliant image. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/image/ImageWorker.html" title="class in org.geotools.image">ImageWorker</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#format(int)">format</A></B>(int&nbsp;dataType)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Formats the underlying image to the provided data type.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/ROI.html" title="class or interface in javax.media.jai">ROI</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#getImageAsROI()">getImageAsROI</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a <A HREF="http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/ROI.html" title="class or interface in javax.media.jai">Region Of Interest</A> built from the current
 <A HREF="../../../org/geotools/image/ImageWorker.html#getRenderedImage()">image</A>. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;double[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#getMaximums()">getMaximums</A></B>()</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the maximal values found in every <A HREF="../../../org/geotools/image/ImageWorker.html#image">image</A> bands. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;double[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/image/ImageWorker.html#getMinimums()">getMinimums</A></B>()</CODE>