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etlegacy-libs/jpegturbo/java/doc/org/libjpegturbo/turbojpeg/TJTransform.html
Remy Marquis 1786cd2285 updated to jpeg-turbo 1.4.0
2015-01-24 22:50:55 +01:00

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<div class="subTitle">org.libjpegturbo.turbojpeg</div>
<h2 title="Class TJTransform" class="title">Class TJTransform</h2>
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<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>java.awt.geom.RectangularShape</li>
<li>
<ul class="inheritance">
<li>java.awt.geom.Rectangle2D</li>
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<ul class="inheritance">
<li>java.awt.Rectangle</li>
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<ul class="inheritance">
<li>org.libjpegturbo.turbojpeg.TJTransform</li>
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<dt>All Implemented Interfaces:</dt>
<dd>java.awt.Shape, java.io.Serializable, java.lang.Cloneable</dd>
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<hr>
<br>
<pre>public class <span class="strong">TJTransform</span>
extends java.awt.Rectangle</pre>
<div class="block">Lossless transform parameters</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../serialized-form.html#org.libjpegturbo.turbojpeg.TJTransform">Serialized Form</a></dd></dl>
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<h3>Nested classes/interfaces inherited from class&nbsp;java.awt.geom.Rectangle2D</h3>
<code>java.awt.geom.Rectangle2D.Double, java.awt.geom.Rectangle2D.Float</code></li>
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<h3>Field Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg">TJCustomFilter</a></code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#cf">cf</a></strong></code>
<div class="block">Custom filter instance</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#NUMOP">NUMOP</a></strong></code>
<div class="block">The number of lossless transform operations</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#op">op</a></strong></code>
<div class="block">Transform operation (one of <code>OP_*</code>)</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OP_HFLIP">OP_HFLIP</a></strong></code>
<div class="block">Flip (mirror) image horizontally.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OP_NONE">OP_NONE</a></strong></code>
<div class="block">Do not transform the position of the image pixels.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OP_ROT180">OP_ROT180</a></strong></code>
<div class="block">Rotate image 180 degrees.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OP_ROT270">OP_ROT270</a></strong></code>
<div class="block">Rotate image counter-clockwise by 90 degrees.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OP_ROT90">OP_ROT90</a></strong></code>
<div class="block">Rotate image clockwise by 90 degrees.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OP_TRANSPOSE">OP_TRANSPOSE</a></strong></code>
<div class="block">Transpose image (flip/mirror along upper left to lower right axis).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OP_TRANSVERSE">OP_TRANSVERSE</a></strong></code>
<div class="block">Transverse transpose image (flip/mirror along upper right to lower left
axis).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OP_VFLIP">OP_VFLIP</a></strong></code>
<div class="block">Flip (mirror) image vertically.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_CROP">OPT_CROP</a></strong></code>
<div class="block">This option will enable lossless cropping.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_GRAY">OPT_GRAY</a></strong></code>
<div class="block">This option will discard the color data in the input image and produce
a grayscale output image.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_NOOUTPUT">OPT_NOOUTPUT</a></strong></code>
<div class="block">This option will prevent <a href="../../../org/libjpegturbo/turbojpeg/TJTransformer.html#transform(byte[][],%20org.libjpegturbo.turbojpeg.TJTransform[],%20int)"><code>TJTransformer.transform()</code></a> from outputting a JPEG image for this
particular transform.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_PERFECT">OPT_PERFECT</a></strong></code>
<div class="block">This option will cause <a href="../../../org/libjpegturbo/turbojpeg/TJTransformer.html#transform(byte[][],%20org.libjpegturbo.turbojpeg.TJTransform[],%20int)"><code>TJTransformer.transform()</code></a> to throw an exception if the transform is not
perfect.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_TRIM">OPT_TRIM</a></strong></code>
<div class="block">This option will discard any partial MCU blocks that cannot be
transformed.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#options">options</a></strong></code>
<div class="block">Transform options (bitwise OR of one or more of <code>OPT_*</code>)</div>
</td>
</tr>
</table>
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<h3>Fields inherited from class&nbsp;java.awt.Rectangle</h3>
<code>height, width, x, y</code></li>
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<h3>Fields inherited from class&nbsp;java.awt.geom.Rectangle2D</h3>
<code>OUT_BOTTOM, OUT_LEFT, OUT_RIGHT, OUT_TOP</code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#TJTransform()">TJTransform</a></strong>()</code>
<div class="block">Create a new lossless transform instance.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#TJTransform(int,%20int,%20int,%20int,%20int,%20int,%20org.libjpegturbo.turbojpeg.TJCustomFilter)">TJTransform</a></strong>(int&nbsp;x,
int&nbsp;y,
int&nbsp;w,
int&nbsp;h,
int&nbsp;op,
int&nbsp;options,
<a href="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg">TJCustomFilter</a>&nbsp;cf)</code>
<div class="block">Create a new lossless transform instance with the given parameters.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#TJTransform(java.awt.Rectangle,%20int,%20int,%20org.libjpegturbo.turbojpeg.TJCustomFilter)">TJTransform</a></strong>(java.awt.Rectangle&nbsp;r,
int&nbsp;op,
int&nbsp;options,
<a href="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg">TJCustomFilter</a>&nbsp;cf)</code>
<div class="block">Create a new lossless transform instance with the given parameters.</div>
</td>
</tr>
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</li>
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<h3>Methods inherited from class&nbsp;java.awt.Rectangle</h3>
<code>add, add, add, contains, contains, contains, contains, createIntersection, createUnion, equals, getBounds, getBounds2D, getHeight, getLocation, getSize, getWidth, getX, getY, grow, inside, intersection, intersects, isEmpty, move, outcode, reshape, resize, setBounds, setBounds, setLocation, setLocation, setRect, setSize, setSize, toString, translate, union</code></li>
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<h3>Methods inherited from class&nbsp;java.awt.geom.Rectangle2D</h3>
<code>add, add, add, contains, contains, getPathIterator, getPathIterator, hashCode, intersect, intersects, intersectsLine, intersectsLine, outcode, setFrame, setRect, union</code></li>
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<h3>Methods inherited from class&nbsp;java.awt.geom.RectangularShape</h3>
<code>clone, contains, contains, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal</code></li>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>finalize, getClass, notify, notifyAll, wait, wait, wait</code></li>
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<h3>Methods inherited from interface&nbsp;java.awt.Shape</h3>
<code>contains, contains, contains, contains, getPathIterator, getPathIterator, intersects, intersects</code></li>
</ul>
</li>
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</li>
</ul>
</div>
<div class="details">
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<h3>Field Detail</h3>
<a name="NUMOP">
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<h4>NUMOP</h4>
<pre>public static final&nbsp;int NUMOP</pre>
<div class="block">The number of lossless transform operations</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.NUMOP">Constant Field Values</a></dd></dl>
</li>
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<a name="OP_NONE">
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<h4>OP_NONE</h4>
<pre>public static final&nbsp;int OP_NONE</pre>
<div class="block">Do not transform the position of the image pixels.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OP_NONE">Constant Field Values</a></dd></dl>
</li>
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<a name="OP_HFLIP">
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<h4>OP_HFLIP</h4>
<pre>public static final&nbsp;int OP_HFLIP</pre>
<div class="block">Flip (mirror) image horizontally. This transform is imperfect if there
are any partial MCU blocks on the right edge.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_PERFECT"><code>OPT_PERFECT</code></a>,
<a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OP_HFLIP">Constant Field Values</a></dd></dl>
</li>
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<a name="OP_VFLIP">
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<h4>OP_VFLIP</h4>
<pre>public static final&nbsp;int OP_VFLIP</pre>
<div class="block">Flip (mirror) image vertically. This transform is imperfect if there are
any partial MCU blocks on the bottom edge.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_PERFECT"><code>OPT_PERFECT</code></a>,
<a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OP_VFLIP">Constant Field Values</a></dd></dl>
</li>
</ul>
<a name="OP_TRANSPOSE">
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<h4>OP_TRANSPOSE</h4>
<pre>public static final&nbsp;int OP_TRANSPOSE</pre>
<div class="block">Transpose image (flip/mirror along upper left to lower right axis). This
transform is always perfect.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_PERFECT"><code>OPT_PERFECT</code></a>,
<a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OP_TRANSPOSE">Constant Field Values</a></dd></dl>
</li>
</ul>
<a name="OP_TRANSVERSE">
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<h4>OP_TRANSVERSE</h4>
<pre>public static final&nbsp;int OP_TRANSVERSE</pre>
<div class="block">Transverse transpose image (flip/mirror along upper right to lower left
axis). This transform is imperfect if there are any partial MCU blocks in
the image.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_PERFECT"><code>OPT_PERFECT</code></a>,
<a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OP_TRANSVERSE">Constant Field Values</a></dd></dl>
</li>
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<a name="OP_ROT90">
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<h4>OP_ROT90</h4>
<pre>public static final&nbsp;int OP_ROT90</pre>
<div class="block">Rotate image clockwise by 90 degrees. This transform is imperfect if
there are any partial MCU blocks on the bottom edge.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_PERFECT"><code>OPT_PERFECT</code></a>,
<a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OP_ROT90">Constant Field Values</a></dd></dl>
</li>
</ul>
<a name="OP_ROT180">
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<h4>OP_ROT180</h4>
<pre>public static final&nbsp;int OP_ROT180</pre>
<div class="block">Rotate image 180 degrees. This transform is imperfect if there are any
partial MCU blocks in the image.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_PERFECT"><code>OPT_PERFECT</code></a>,
<a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OP_ROT180">Constant Field Values</a></dd></dl>
</li>
</ul>
<a name="OP_ROT270">
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<h4>OP_ROT270</h4>
<pre>public static final&nbsp;int OP_ROT270</pre>
<div class="block">Rotate image counter-clockwise by 90 degrees. This transform is imperfect
if there are any partial MCU blocks on the right edge.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#OPT_PERFECT"><code>OPT_PERFECT</code></a>,
<a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OP_ROT270">Constant Field Values</a></dd></dl>
</li>
</ul>
<a name="OPT_PERFECT">
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<h4>OPT_PERFECT</h4>
<pre>public static final&nbsp;int OPT_PERFECT</pre>
<div class="block">This option will cause <a href="../../../org/libjpegturbo/turbojpeg/TJTransformer.html#transform(byte[][],%20org.libjpegturbo.turbojpeg.TJTransform[],%20int)"><code>TJTransformer.transform()</code></a> to throw an exception if the transform is not
perfect. Lossless transforms operate on MCU blocks, whose size depends on
the level of chrominance subsampling used. If the image's width or height
is not evenly divisible by the MCU block size (see <a href="../../../org/libjpegturbo/turbojpeg/TJ.html#getMCUWidth(int)"><code>TJ.getMCUWidth(int)</code></a>
and <a href="../../../org/libjpegturbo/turbojpeg/TJ.html#getMCUHeight(int)"><code>TJ.getMCUHeight(int)</code></a>), then there will be partial MCU blocks on the
right and/or bottom edges. It is not possible to move these partial MCU
blocks to the top or left of the image, so any transform that would
require that is "imperfect." If this option is not specified, then any
partial MCU blocks that cannot be transformed will be left in place, which
will create odd-looking strips on the right or bottom edge of the image.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OPT_PERFECT">Constant Field Values</a></dd></dl>
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<pre>public static final&nbsp;int OPT_TRIM</pre>
<div class="block">This option will discard any partial MCU blocks that cannot be
transformed.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OPT_TRIM">Constant Field Values</a></dd></dl>
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<pre>public static final&nbsp;int OPT_CROP</pre>
<div class="block">This option will enable lossless cropping.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OPT_CROP">Constant Field Values</a></dd></dl>
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<pre>public static final&nbsp;int OPT_GRAY</pre>
<div class="block">This option will discard the color data in the input image and produce
a grayscale output image.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OPT_GRAY">Constant Field Values</a></dd></dl>
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<pre>public static final&nbsp;int OPT_NOOUTPUT</pre>
<div class="block">This option will prevent <a href="../../../org/libjpegturbo/turbojpeg/TJTransformer.html#transform(byte[][],%20org.libjpegturbo.turbojpeg.TJTransform[],%20int)"><code>TJTransformer.transform()</code></a> from outputting a JPEG image for this
particular transform. This can be used in conjunction with a custom
filter to capture the transformed DCT coefficients without transcoding
them.</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJTransform.OPT_NOOUTPUT">Constant Field Values</a></dd></dl>
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<h4>op</h4>
<pre>public&nbsp;int op</pre>
<div class="block">Transform operation (one of <code>OP_*</code>)</div>
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<h4>options</h4>
<pre>public&nbsp;int options</pre>
<div class="block">Transform options (bitwise OR of one or more of <code>OPT_*</code>)</div>
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<h4>cf</h4>
<pre>public&nbsp;<a href="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg">TJCustomFilter</a> cf</pre>
<div class="block">Custom filter instance</div>
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<h4>TJTransform</h4>
<pre>public&nbsp;TJTransform()</pre>
<div class="block">Create a new lossless transform instance.</div>
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<h4>TJTransform</h4>
<pre>public&nbsp;TJTransform(int&nbsp;x,
int&nbsp;y,
int&nbsp;w,
int&nbsp;h,
int&nbsp;op,
int&nbsp;options,
<a href="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg">TJCustomFilter</a>&nbsp;cf)
throws java.lang.Exception</pre>
<div class="block">Create a new lossless transform instance with the given parameters.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>x</code> - the left boundary of the cropping region. This must be evenly
divisible by the MCU block width (see <a href="../../../org/libjpegturbo/turbojpeg/TJ.html#getMCUWidth(int)"><code>TJ.getMCUWidth(int)</code></a>)</dd><dd><code>y</code> - the upper boundary of the cropping region. This must be evenly
divisible by the MCU block height (see <a href="../../../org/libjpegturbo/turbojpeg/TJ.html#getMCUHeight(int)"><code>TJ.getMCUHeight(int)</code></a>)</dd><dd><code>w</code> - the width of the cropping region. Setting this to 0 is the
equivalent of setting it to (width of the source JPEG image -
<code>x</code>).</dd><dd><code>h</code> - the height of the cropping region. Setting this to 0 is the
equivalent of setting it to (height of the source JPEG image -
<code>y</code>).</dd><dd><code>op</code> - one of the transform operations (<code>OP_*</code>)</dd><dd><code>options</code> - the bitwise OR of one or more of the transform options
(<code>OPT_*</code>)</dd><dd><code>cf</code> - an instance of an object that implements the <a href="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg"><code>TJCustomFilter</code></a> interface, or null if no custom filter is needed</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.Exception</code></dd></dl>
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<h4>TJTransform</h4>
<pre>public&nbsp;TJTransform(java.awt.Rectangle&nbsp;r,
int&nbsp;op,
int&nbsp;options,
<a href="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg">TJCustomFilter</a>&nbsp;cf)
throws java.lang.Exception</pre>
<div class="block">Create a new lossless transform instance with the given parameters.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>r</code> - a <code>Rectangle</code> instance that specifies the cropping
region. See <a href="../../../org/libjpegturbo/turbojpeg/TJTransform.html#TJTransform(int,%20int,%20int,%20int,%20int,%20int,%20org.libjpegturbo.turbojpeg.TJCustomFilter)"><code>TJTransform(int, int, int, int, int, int, TJCustomFilter)</code></a> for more
detail.</dd><dd><code>op</code> - one of the transform operations (<code>OP_*</code>)</dd><dd><code>options</code> - the bitwise OR of one or more of the transform options
(<code>OPT_*</code>)</dd><dd><code>cf</code> - an instance of an object that implements the <a href="../../../org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg"><code>TJCustomFilter</code></a> interface, or null if no custom filter is needed</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.Exception</code></dd></dl>
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