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style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>分量与人感受彩=
色的方式紧密相连，=
0854;中</span><span
lang=3DEN-US>H</span><span style=3D'font-family:SimSun;mso-ascii-font-famil=
y:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>分量尤其&#=
24433;响人类的视觉判断z=
90;这些特点使得</span><span
lang=3DEN-US>HSI</span><span style=3D'font-family:SimSun;mso-ascii-font-fam=
ily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>模型=
非常适合基于人视觉=
1995;统对彩色感知特性௚=
0;图像处理。</span></p>
<p class=3DMsoNormal style=3D'text-indent:21.0pt;mso-char-indent-count:2.0'=
><span
lang=3DEN-US><o:p> </o:p></span></p>
<p class=3DMsoNormal><b style=3D'mso-bidi-font-weight:normal'><span
style=3D'font-family:SimSun;mso-ascii-font-family:"Times New Roman";mso-han=
si-font-family:
"Times New Roman"'>方案论证</span><span lang=3DEN-U=
S><o:p></o:p></span></b></p>
<p class=3DMsoNormal><span lang=3DEN-US><o:p> </o:p></span></p>
<p class=3DMsoNormal><span style=3D'font-family:SimSun;mso-ascii-font-famil=
y:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>对彩色图&#=
20687;的分割必须在特定į=
40;颜色空间中进行。实=
际上</span><span
lang=3DEN-US>RGB</span><span style=3D'font-family:SimSun;mso-ascii-font-fam=
ily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>到</span><=
span
lang=3DEN-US>HIS</span><span style=3D'font-family:SimSun;mso-ascii-font-fam=
ily:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>空间=
的转换较为简便。</span></p>
<p class=3DMsoNormal><span lang=3DEN-US><!--[if gte vml 1]><v:shape id=3D"_=
x0000_i1026"
type=3D"#_x0000_t75" style=3D'width:228pt;height:122.25pt'>
<v:imagedata src=3D"file6058.files/image002.png" o:title=3D""/>
</v:shape><![endif]--><![if !vml]><img width=3D304 height=3D163
src=3D"file6058.files/image003.jpg" v:shapes=3D"_x0000_i1026"><![endif]></s=
pan></p>
<p class=3DMsoNormal><span style=3D'mso-bidi-font-size:10.5pt;font-family:S=
imSun;
mso-bidi-font-family:Arial'>两图片是否相=
;似可以采用欧氏距离&#=
26469;描述：<span
lang=3DEN-US><br>
<br>
Ed=3D(G,S)=3D <!--[if gte vml 1]><v:shape id=3D"_x0000_i1027" type=3D"#_x00=
00_t75"
alt=3D"" style=3D'width:78.75pt;height:35.25pt'>
<v:imagedata src=3D"file6058.files/image004.png" o:href=3D"http://www.yesk=
y.com/20030121/jt-2003-0121-image002.gif"/>
</v:shape><![endif]--><![if !vml]><img width=3D105 height=3D47
src=3D"file6058.files/image005.gif" v:shapes=3D"_x0000_i1027"><![endif]>(Ed=
</span>越小相似度就越大<span
lang=3DEN-US>)</span>检索后，全图௥=
2;方图的相似度的定量&=
#24230;量可以用如下公式"=
920;示：<span
lang=3DEN-US><br>
<br>
Sim(G,S)=3D<!--[if gte vml 1]><v:shape id=3D"_x0000_i1028" type=3D"#_x0000_=
t75"
alt=3D"" style=3D'width:109.5pt;height:40.5pt'>
<v:imagedata src=3D"file6058.files/image006.png" o:href=3D"http://www.yesk=
y.com/20030121/jt-2003-0121-image004.gif"/>
</v:shape><![endif]--><![if !vml]><img width=3D146 height=3D54
src=3D"file6058.files/image007.gif" v:shapes=3D"_x0000_i1028"><![endif]> <b=
r>
(N</span>为颜色级数，<span lang=3DEN-US=
>Sim</span>越靠近<span
lang=3DEN-US>1</span>两幅图片越相߬=
4;<span
lang=3DEN-US>)<br>
<br>
</span>可以对上面<span lang=3DEN-US>2</span>&=
#20013;的公式加改进对某=
123;相对重要的颜色乘上=
;一个权重，就可以做&#=
23547;找某一前景或组合į=
40;查询。<span
lang=3DEN-US><br>
<br>
</span>全图的颜色直方图=
639;法过于简单，因此带=
;来很多问题，如：可&#=
33021;会有两幅根本不同į=
40;图像具有完全一样的=
颜色直方图，不反映=
9068;色位置信息，这样ल=
8;致查准率和查全率都&=
#19981;高，因此问文章提=
986;了一个改进，即将图=
;像进行了分割，形成&#=
33509;干子块，这样就提Ë=
79;了一定程度的位置信=
息，而且可以对含用=
5143;感兴趣的子块加大੓=
5;重，提高检索的查询&=
#26234;能性和查准查全率A=
292;相应的公式有，子块=
;<span
lang=3DEN-US>Gij</span>与<span lang=3DEN-US>Sij</span>的相=
;似性度量为：<span
lang=3DEN-US><br>
<br>
<!--[if gte vml 1]><v:shape id=3D"_x0000_i1029" type=3D"#_x0000_t75" alt=3D=
""
style=3D'width:184.5pt;height:40.5pt'>
<v:imagedata src=3D"file6058.files/image008.png" o:href=3D"http://www.yesk=
y.com/20030121/jt-2003-0121-image006.gif"/>
</v:shape><![endif]--><![if !vml]><img width=3D246 height=3D54
src=3D"file6058.files/image009.gif" v:shapes=3D"_x0000_i1029"><![endif]><sp=
an
style=3D'mso-spacerun:yes'> </span><br>
</span>（<span lang=3DEN-US>P</span>为所选颜&=
#33394;空间的样点数）<span
lang=3DEN-US><br>
<br>
</span>再引入子块权重<span
lang=3DEN-US>Wij</span>，选取<span lang=3DEN-US>L</span>&=
#20010;最大的<span
lang=3DEN-US>Sim</span>值作<span lang=3DEN-US>Simk(Gk,Sk),</spa=
n>就有：<span
lang=3DEN-US><br>
<br>
<!--[if gte vml 1]><v:shape id=3D"_x0000_i1030" type=3D"#_x0000_t75" alt=3D=
""
style=3D'width:189pt;height:35.25pt'>
<v:imagedata src=3D"file6058.files/image010.png" o:href=3D"http://www.yesk=
y.com/20030121/jt-2003-0121-image008.gif"/>
</v:shape><![endif]--><![if !vml]><img width=3D252 height=3D47
src=3D"file6058.files/image011.gif" v:shapes=3D"_x0000_i1030"><![endif]><sp=
an
style=3D'mso-spacerun:yes'> </span><br>
</span>（<span lang=3DEN-US>Wk </span>的选取应=
;根据图像的特点决定&#=
65292;可以使图像中间或ī=
92;户指定的区域权重大=
，以反映图像的位置=
0449;息）<span
lang=3DEN-US><br style=3D'mso-special-character:line-break'>
<![if !supportLineBreakNewLine]><br style=3D'mso-special-character:line-bre=
ak'>
<![endif]><span class=3Dtxt><o:p></o:p></span></span></span></p>
<p class=3DMsoNormal style=3D'text-indent:21.0pt;mso-char-indent-count:2.0'=
><span
style=3D'mso-bidi-font-size:10.5pt;font-family:SimSun'>进一=
493;优化检索方法，将图=
;像分割成<span
lang=3DEN-US>4×4</span>格局，借助ࢳ=
0;像中相邻子块之间的&=
#39068;色直方图的配对建=
169;，实现对图像中的具=
;体对象的查询，支持&#=
23545;象的移位、旋转和Ų=
96;分变形。计算用户输=
入图像的子块直方图=
9255;<span
lang=3DEN-US>à</span>用户选定包含=
;查询对象的子块<span
lang=3DEN-US>à</span>计算这些子块=
;与周围相邻的子块的&#=
39068;色对表<span
lang=3DEN-US>à</span>将这些颜色对=
;中差值小于某一域值&#=
30340;颜色对删除以消除Ɔ=
68;色噪声<span
lang=3DEN-US>à</span>选取颜色对表=
;中数值最大的几个颜&#=
33394;对做为图片的代表ĥ=
05;征<span
lang=3DEN-US>à</span>搜索目标图像=
;的每一子块的颜色对&#=
34920;寻找与这写代表颜ō=
94;对的匹配<span
lang=3DEN-US>à</span>统计单一匹配=
;次数<span
lang=3DEN-US>à</span>若有某一比例=
;以上的颜色对匹配到&#=
65292;图像即被检索到。<span
lang=3DEN-US><o:p></o:p></span></span></p>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'mso-bidi-font-size:10.5pt;
font-family:SimSun'><o:p> </o:p></span></p>
<p class=3DMsoNormal><span style=3D'mso-bidi-font-size:10.5pt;font-family:S=
imSun'>相似性度量：<span
lang=3DEN-US><o:p></o:p></span></span></p>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'mso-bidi-font-size:10.5pt;
font-family:SimSun'><!--[if gte vml 1]><v:shape id=3D"_x0000_i1031" type=3D=
"#_x0000_t75"
alt=3D"" style=3D'width:206.25pt;height:54pt'>
<v:imagedata src=3D"file6058.files/image012.png" o:href=3D"http://www.yesk=
y.com/20030121/jt-2003-0121-image010.gif"/>
</v:shape><![endif]--><![if !vml]><img width=3D275 height=3D72
src=3D"file6058.files/image013.gif" v:shapes=3D"_x0000_i1031"><![endif]><sp=
an
style=3D'mso-spacerun:yes'> </span><br>
</span><span style=3D'mso-bidi-font-size:10.5pt;font-family:SimSun'>（=
;<span
lang=3DEN-US>N</span>为所用查询颜ഋ=
4;对数目）<span
lang=3DEN-US><br>
qj</span>、<span lang=3DEN-US>gj</span>：颜色ल=
5;<span
lang=3DEN-US>j</span>在查询图像<span lang=3DE=
N-US>Q</span>和目标图像<span
lang=3DEN-US>G</span>中出现的次数ᦁ=
2;查询时颜色对的匹配&=
#24212;该是不精确的，应#=
813;允许的误差为<span
lang=3DEN-US>2%</span>以内。<span lang=3DEN-US><o:p></o:p=
></span></span></p>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'mso-bidi-font-size:10.5pt;
font-family:SimSun'><o:p> </o:p></span></p>
<p class=3DMsoNormal><span lang=3DEN-US style=3D'mso-bidi-font-size:10.5pt;
font-family:SimSun'>4×4</span><span style=3D'mso-bidi-font-size:10.5p=
t;
font-family:SimSun'>格按从左到右、=
;从上到下的顺序，分&#=
21035;计算各子块的颜色İ=
52;方图，因此需要设定=
一个三维数组，前两=
2500;为子块的坐标，最ࡧ=
8;一维为颜色级，但现&=
#22312;采样得到的象素点=
340;颜色值是<span
lang=3DEN-US>RGB</span>形式的，因此A=
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