📄 glossary.htm
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0093)http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html -->
<HTML><HEAD><TITLE>Glossary</TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<META content=exclude name=collection>
<META content="MSHTML 6.00.2900.3132" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<CENTER><A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/JAITOC.fm.html"><IMG
alt=Contents src="Glossary.files/contents.gif"></A> <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/API-summary.doc.html"><IMG
alt=Previous src="Glossary.files/previous.gif"></A> </CENTER><BR>
<CENTER><A name=47771>
<TABLE width="90%" border=0>
<TBODY>
<TR>
<TD align=right><FONT size=6>Glossary</FONT>
<HR noShade SIZE=7>
</TD></TR></TBODY></TABLE></A></CENTER>
<BLOCKQUOTE>
<P><BR><BR><BR>
<P><FONT size=7><B>T</B></FONT>HIS glossary contains descriptions of
significant terms that appear in this book.
<P>
<DL>
<P><A name=49210>
<DT><B>affine transformation</B> </A><A name=49193>
<DD>Geometric image transformation, such as translation, scaling, or
rotation. </A>
<P><A name=49188></P>
<DT><B>band</B> </A><A name=49191>
<DD>The set of all samples of one type in an image, such as all red samples
or all green samples. </A>
<P><A name=49258></P>
<DT><B>box filter</B> </A><A name=49259>
<DD>A low-pass spatial filter composed of uniformly-weighted convolution
coefficients. </A>
<P><A name=49198></P>
<DT><B>bicubic interpolation</B> </A><A name=49199>
<DD>Two-dimensional cubic interpolation of pixel values based on the 16
pixels in a 4 x 4 pixel neighborhood. See also <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49200"><EM>bilinear
interpolation</EM></A>, <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49221"><EM>nearest-neighbor
interpolation</EM></A>. </A>
<P><A name=49200></P>
<DT><B>bilinear interpolation</B> </A><A name=49201>
<DD>Two-dimensional linear interpolation of pixel values based on the four
pixels in a 2 x 2 pixel neighborhood. See also <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49198"><EM>bicubic
interpolation</EM></A>, <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49221"><EM>nearest-neighbor
interpolation</EM></A>. </A>
<P><A name=49302></P>
<DT><B>binary image</B> </A><A name=49303>
<DD>An image that consists of only two brightness levels: black and white.
</A>
<P><A name=49304></P>
<DT><B>chain code</B> </A><A name=49305>
<DD>A pixel-by-pixel direction code that defines boundaries of objects
within an image. The chain code records an object boundary as a series of
direction codes. </A>
<P><A name=49296></P>
<DT><B>cobble</B> </A><A name=49297>
<DD>To assemble multiple tile regions into a single contiguous region. </A>
<P><A name=49260></P>
<DT><B>color space conversion</B> </A><A name=49261>
<DD>The conversion of a color using one space to another color space, such
as RGB to CMYK. </A>
<P><A name=49190></P>
<DT><B>components</B> </A><A name=49189>
<DD>Values of samples independent of color interpretation. </A>
<P><A name=49328></P>
<DT><B>compression ratio</B> </A><A name=49329>
<DD>In image compression, the ratio of an uncompressed image data file size
to its compressed counterpart. </A>
<P><A name=48221></P>
<DT><B>data element</B> </A><A name=49056>
<DD>Primitive types used as units of storage of image data. Data elements
are individual members of a <CODE>DataBuffer</CODE> array. </A>
<P><A name=49265></P>
<DT><B>directed graph (digraph)</B> </A><A name=49282>
<DD>A graph with one-way edges. See also <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49269"><EM>directed
acyclic graph (DAG)</EM></A>. </A>
<P><A name=49269></P>
<DT><B>directed acyclic graph (DAG)</B> </A><A name=49287>
<DD>A directed graph containing no cycles. This means that if there is a
route from node A to node B then there is no way back. </A>
<P><A name=49330></P>
<DT><B>first-order interpolation</B> </A><A name=49335>
<DD>See <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49200"><EM>bilinear
interpolation</EM></A>. </A>
<P><A name=49343></P>
<DT><B>high-pass filter</B> </A><A name=49344>
<DD>A spatial filter that accentuates an image's high-frequency detail or
attenuates the low-frequency detail. Contrast with <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49345"><EM>low-pass
filter</EM></A>, <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49355"><EM>median
filter</EM></A>. </A>
<P><A name=49316></P>
<DT><B>histogram</B> </A><A name=49317>
<DD>A measure of the amplitude distribution of pixels within an image. </A>
<P><A name=49298></P>
<DT><B>Lempel-Ziv-Welch (LZW) compression</B> </A><A name=49299>
<DD>A lossless image coding method that scans the image for repeating
patterns of blocks of pixels and codes the patterns into a code list. </A>
<P><A name=49345></P>
<DT><B>low-pass filter</B> </A><A name=49350>
<DD>A spatial filter that attenuates an image's high-frequency detail or
accentuates the low-frequency detail. Contrast with <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49343"><EM>high-pass
filter</EM></A>, <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49355"><EM>median
filter</EM></A>. </A>
<P><A name=49355></P>
<DT><B>median filter</B> </A><A name=49356>
<DD>A non-linear spatial filter used to remove noise spikes from an image.
</A>
<P><A name=49221></P>
<DT><B>nearest-neighbor interpolation</B> </A><A name=49222>
<DD>Two-dimensional interpolation of pixel values in which the amplitude of
the interpolated sample is the amplitude of its nearest neighbor. See also
<A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49198"><EM>bicubic
interpolation</EM></A>, <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49200"><EM>bilinear
interpolation</EM></A>. </A>
<P><A name=49364></P>
<DT><B>perspective warp</B> </A><A name=49365>
<DD>An image distortion in which objects appear trapezoidal due to
foreshortening. </A>
<P><A name=49366></P>
<DT><B>projective warp</B> </A><A name=49367>
<DD>See <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49364"><EM>perspective
warp</EM></A>. </A>
<P><A name=49374></P>
<DT><B>quantization</B> </A><A name=49375>
<DD>The conversion of discrete image samples to digital quantities. </A>
<P><A name=49431></P>
<DT><B>ROI</B> </A><A name=49432>
<DD>Abbreviation for <EM>region of interest</EM>. An area or pixel group
within an image that has been selected for processing. </A>
<P><A name=49376></P>
<DT><B>run-length coding</B> </A><A name=49377>
<DD>A type of lossless image data compression that scans for sequences of
pixels with the same brightness level and codes them into a reduced
description. </A>
<P><A name=49378></P>
<DT><B>Sobel edge detection</B> </A><A name=49379>
<DD>A spatial edge detection filter that detects edges by finding the
gradient of an image. </A>
<P><A name=49390></P>
<DT><B>square pixel</B> </A><A name=49391>
<DD>A pixel with equal height and width. </A>
<P><A name=49394></P>
<DT><B>thresholding</B> </A><A name=49395>
<DD>A point operation that maps all the pixel values of an image that fall
within a given range to one of a set of per-band constants. </A>
<P><A name=49404></P>
<DT><B>transform coding</B> </A><A name=49405>
<DD>A form of lossy block coding that transforms blocks of an image from the
spatial domain to the frequency domain. </A>
<P><A name=49418></P>
<DT><B>trapping</B> </A><A name=49419>
<DD>An image manipulation technique used in printing that uses dilation and
erosion to compensation for misregistration of colors. </A>
<P><A name=49244></P>
<DT><B>unsharp masking</B> </A><A name=49245>
<DD>An image enhancement technique using a high-frequency accentuating
filter. </A>
<P><A name=49420></P>
<DT><B>zero-order interpolation</B> </A><A name=49421>
<DD>See <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/Glossary.doc.html#49221"><EM>nearest-neighbor
interpolation</EM></A>. </A></DD></DL>
<HR>
<BR>
<CENTER><A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/JAITOC.fm.html"><IMG
alt=Contents src="Glossary.files/contents.gif"></A> <A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/API-summary.doc.html"><IMG
alt=Previous src="Glossary.files/previous.gif"></A> </CENTER><BR>
<H5><A
href="http://java.sun.com/products/java-media/jai/forDevelopers/jai1_0_1guide-unc/copyright.html">Copyright</A>
© 1999, Sun Microsystems, Inc. All rights reserved.</H5><!-- Last updated: Tue Nov 02 18:21:19 1999 --></BLOCKQUOTE>
<SCRIPT language=JavaScript src="Glossary.files/s_code_remote.js"></SCRIPT>
</BODY></HTML>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -