DEDECMS栏目增加缩略图的完美方法

DEDECMS栏目增加缩略图的完美方法


DEDECMS栏目增加缩略图的完美方法

给DedeCms给栏目增加缩略图功能,在此JS代码站站长给出一些具体步骤,dedecms由于涉及修改系统文件,请谨慎求改。


首先。新加字段 typeimg


后台执行SQL:


<span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">alter</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">table</span></span> <span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">`dede_arctype`</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">add</span></span> <span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">`typeimg`</span></span> <span class="sh_type" style="color: rgb(0, 0, 255); "><span style="font-size:12px;">char</span></span><span class="sh_symbol"><span style="font-size:12px;">(</span></span><span class="sh_number" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">100</span></span><span class="sh_symbol"><span style="font-size:12px;">)</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">NOT</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">NULL</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">default</span></span> <span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">''</span></span><span class="sh_symbol"><span style="font-size:12px;">;</span></span> 

  涉及到文件:


  dede/catalog_add.php


  dede/catalog_edit.php


  dede/templets/catalog_add.htm


  dede/templets/catalog_edit.htm


  打开文件夹templets这个目录,在里面新建一个文件夹typeimg,用于独立存放栏目缩略图


  打开dede/catalog_add.php查找


<span class="sh_variable" style="color: rgb(34, 95, 45); "><span style="font-size:12px;">$queryTemplate</span></span> <span class="sh_symbol"><span style="font-size:12px;">=</span></span> <span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"insert into `dede_arctype`</span></span>

  将:


<span class="sh_symbol"><span style="font-size:12px;">(</span></span><span style="font-size:12px;">reid</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">topid</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">sortrank</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">typename</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">typedir</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span>

  替换为:


<span class="sh_symbol"><span style="font-size:12px;">(</span></span><span style="font-size:12px;">reid</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">topid</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">sortrank</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">typename</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">typedir</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span style="font-size:12px;">typeimg</span><span class="sh_symbol"><span style="font-size:12px;">,</span></span>

  再将:


<span class="sh_symbol"><span style="font-size:12px;">(</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~reid~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~topid~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~rank~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~typename~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~typedir~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span>

  



替换为:


<span class="sh_symbol"><span style="font-size:12px;">(</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~reid~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~topid~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~rank~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~typename~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~typedir~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'~typeimg~'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span> 

  打开dede/catalog_edit.php查找


<span class="sh_variable" style="color: rgb(34, 95, 45); "><span style="font-size:12px;">$upquery</span></span> <span class="sh_symbol"><span style="font-size:12px;">=</span></span> <span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"Update `dede_arctype` set</span></span>

  在其下边增加一行:


<br><span style="font-size:12px;">`typeimg`</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">'$typeimg'</span></span><span class="sh_symbol"><span style="font-size:12px;">,</span></span>

  打开dede/templets/catalog_add.htm(友情提示:这里的dede为后台目录,一般我们都进行了修改,更多的dedecms教程请移步http://www.sitejs.cn)查找


<span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">tr</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">td height</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"26"</span></span><span class="sh_symbol"><span style="font-size:12px;">></span></span><span style="font-size:12px;">列表命名规则:td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">input name</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"namerule2"</span></span><span style="font-size:12px;"> type</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"text"</span></span><span style="font-size:12px;"> id</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"namerule2"</span></span><span style="font-size:12px;"> value</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"{typedir}/list_{tid}_{page}.html"</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">class</span></span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"pubinputs"</span></span><span style="font-size:12px;"> style</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"width:250px"</span></span> <span class="sh_symbol"><span style="font-size:12px;">/></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">img src</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"img/help.gif"</span></span><span style="font-size:12px;"> alt</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"帮助"</span></span><span style="font-size:12px;"> width</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"16"</span></span><span style="font-size:12px;"> height</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"16"</span></span><span style="font-size:12px;"> border</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"0"</span></span><span style="font-size:12px;"> style</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"cursor:pointer"</span></span><span style="font-size:12px;"> onClick</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"ShowHide('helpvar3')"</span></span><span class="sh_symbol"><span style="font-size:12px;">/></span></span><span style="font-size:12px;">td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span style="font-size:12px;">tr</span><span class="sh_symbol"><span style="font-size:12px;">></span></span> 

  在其下面增加以下内容








<span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">tr</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">td height</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"65"</span></span><span class="sh_symbol"><span style="font-size:12px;">></span></span><span style="font-size:12px;">栏目图片:td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">input name</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"typeimg"</span></span><span style="font-size:12px;"> type</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"text"</span></span><span style="font-size:12px;"> style</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"width:250px"</span></span><span style="font-size:12px;"> id</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"typeimg"</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">class</span></span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"alltxt"</span></span><span style="font-size:12px;"> value</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">""</span></span> <span class="sh_symbol"><span style="font-size:12px;">/></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">input type</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"button"</span></span><span style="font-size:12px;"> name</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"set9"</span></span><span style="font-size:12px;"> value</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"浏览... "</span></span><span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">class</span></span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"coolbg np"</span></span><span style="font-size:12px;"> style</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"width:60px"</span></span><span style="font-size:12px;"> onClick</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"SelectTemplets('form1.typeimgactivepath=%2Ftemplets%2Ftypeimgimg=yes');"</span></span> <span class="sh_symbol"><span style="font-size:12px;">/></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;">(</span></span><span style="font-size:12px;">栏目模板里用</span><span class="sh_cbracket"><span style="font-size:12px;">{</span></span><span style="font-size:12px;">dede</span><span class="sh_symbol"><span style="font-size:12px;">:</span></span><span style="font-size:12px;">field</span><span class="sh_symbol"><span style="font-size:12px;">.</span></span><span style="font-size:12px;">typeimg </span><span class="sh_symbol"><span style="font-size:12px;">/</span></span><span class="sh_cbracket"><span style="font-size:12px;">}</span></span><span style="font-size:12px;">调用</span><span class="sh_symbol"><span style="font-size:12px;">)</span></span>  <br><span style="font-size:12px;">td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span style="font-size:12px;">tr</span><span class="sh_symbol"><span style="font-size:12px;">></span></span> 

  打开dede/templets/catalog_edit.htm查找


<span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">tr</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">td height</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"26"</span></span><span class="sh_symbol"><span style="font-size:12px;">></span></span><span style="font-size:12px;">列表命名规则:td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span> <span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">input name</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"namerule2"</span></span><span style="font-size:12px;"> type</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"text"</span></span><span style="font-size:12px;"> id</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"namerule2"</span></span><span style="font-size:12px;"> value</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">""</span></span><span style="font-size:12px;"> size</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"40"</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">class</span></span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"iptxt"</span></span> <span class="sh_symbol"><span style="font-size:12px;">/></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">img src</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"img/help.gif"</span></span><span style="font-size:12px;"> alt</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"帮助"</span></span><span style="font-size:12px;"> width</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"16"</span></span><span style="font-size:12px;"> height</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"16"</span></span><span style="font-size:12px;"> border</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"0"</span></span><span style="font-size:12px;"> style</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"cursor:pointer"</span></span><span style="font-size:12px;"> onClick</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"ShowHide('helpvar3')"</span></span><span class="sh_symbol"><span style="font-size:12px;">/></span></span><span style="font-size:12px;">td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span style="font-size:12px;">tr</span><span class="sh_symbol"><span style="font-size:12px;">></span></span> 





  


在其下边增加内容:


<span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">tr</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">td height</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"65"</span></span><span class="sh_symbol"><span style="font-size:12px;">></span></span><span style="font-size:12px;">栏目图片:td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">input name</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"typeimg"</span></span><span style="font-size:12px;"> type</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"text"</span></span><span style="font-size:12px;"> style</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"width:250px"</span></span><span style="font-size:12px;"> id</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"typeimg"</span></span> <span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">class</span></span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"alltxt"</span></span><span style="font-size:12px;"> value</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">""</span></span> <span class="sh_symbol"><span style="font-size:12px;">/></span></span>  <br><span class="sh_symbol"><span style="font-size:12px;"><</span></span><span style="font-size:12px;">input type</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"button"</span></span><span style="font-size:12px;"> name</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"set9"</span></span><span style="font-size:12px;"> value</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"浏览... "</span></span><span class="sh_keyword" style="color: rgb(165, 42, 42); "><span style="font-size:12px;">class</span></span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"coolbg np"</span></span><span style="font-size:12px;"> style</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"width:60px"</span></span><span style="font-size:12px;"> onClick</span><span class="sh_symbol"><span style="font-size:12px;">=</span></span><span class="sh_string" style="color: rgb(255, 0, 255); "><span style="font-size:12px;">"SelectImages('form1.typeimgactivepath=%2Ftemplets%2Ftypeimgimg=yes');"</span></span> <span class="sh_symbol"><span style="font-size:12px;">/></span></span> <span class="sh_symbol"><span style="font-size:12px;">(</span></span><span style="font-size:12px;">栏目模板里用</span><span class="sh_cbracket"><span style="font-size:12px;">{</span></span><span style="font-size:12px;">dede</span><span class="sh_symbol"><span style="font-size:12px;">:</span></span><span style="font-size:12px;">field</span><span class="sh_symbol"><span style="font-size:12px;">.</span></span><span style="font-size:12px;">typeimg </span><span class="sh_symbol"><span style="font-size:12px;">/</span></span><span class="sh_cbracket"><span style="font-size:12px;">}</span></span><span style="font-size:12px;">调用</span><span class="sh_symbol"><span style="font-size:12px;">)</span></span>  <br><span style="font-size:12px;">td</span><span class="sh_symbol"><span style="font-size:12px;">></span></span>  <br><span style="font-size:12px;">tr</span><span class="sh_symbol"><span style="font-size:12px;">></span></span> 

  到这里已经制作完成了


织梦dedecms微信公众平台插件下载及安装方法
本课题设计了一种利用Matlab平台开发的植物叶片健康状态识别方案,重点融合了色彩与纹理双重特征以实现对叶片病害的自动化判别。该系统构建了直观的图形操作界面,便于用户提交叶片影像并快速获得分析结论。Matlab作为具备高效数值计算与数据处理能力的工具,在图像分析与模式分类领域应用广泛,本项目正是借助其功能解决农业病害监测的实际问题。 在色彩特征分析方面,叶片影像的颜色分布常与其生理状态密切相关。通常,健康的叶片呈现绿色,而出现黄化、褐变等异常色彩往往指示病害或虫害的发生。Matlab提供了一系列图像处理函数,例如可通过色彩空间转换与直方图统计来量化颜色属性。通过计算各颜色通道的统计参数(如均值、标准差及主成分等),能够提取具有判别力的色彩特征,从而为不同病害类别的区分提供依据。 纹理特征则用于描述叶片表面的微观结构与形态变化,如病斑、皱缩或裂纹等。Matlab中的灰度共生矩阵计算函数可用于提取对比度、均匀性、相关性等纹理指标。此外,局部二值模式与Gabor滤波等方法也能从多尺度刻画纹理细节,进一步增强病害识别的鲁棒性。 系统的人机交互界面基于Matlab的图形用户界面开发环境实现。用户可通过该界面上传待检图像,系统将自动执行图像预处理、特征抽取与分类判断。采用的分类模型包括支持向量机、决策树等机器学习方法,通过对已标注样本的训练,模型能够依据新图像的特征向量预测其所属的病害类别。 此类课题设计有助于深化对Matlab编程、图像处理技术与模式识别原理的理解。通过完整实现从特征提取到分类决策的流程,学生能够将理论知识与实际应用相结合,提升解决复杂工程问题的能力。总体而言,该叶片病害检测系统涵盖了图像分析、特征融合、分类算法及界面开发等多个技术环节,为学习与掌握基于Matlab的智能检测技术提供了综合性实践案例。 资源来源于网络分享,仅用于学习交流使用,请勿用于商业,如有侵权请联系我删除!
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