PHP determines the position and watermark based on the color level of the image_PHP tutorial

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<li class="alt"><span><span><?php    </span></span></li><li><span>    </span><span class="keyword">function</span><span> add_wm(</span><span class="vars">$nmw_water</span><span>, </span><span class="vars">$src_file</span><span>, </span><span class="vars">$output_file</span><span>, </span><span class="vars">$x</span><span>, </span><span class="vars">$y</span><span>) {    </span></li><li class="alt"><span>        </span><span class="keyword">if</span><span>(</span><span class="func">file_exists</span><span>(</span><span class="vars">$output_file</span><span>))    </span></li><li><span>            </span><span class="keyword">return</span><span>;    </span></li><li class="alt"><span>    </span></li><li><span>        </span><span class="vars">$w1</span><span> = MagickGetImageWidth(</span><span class="vars">$nmw_water</span><span>);    </span></li><li class="alt"><span>        </span><span class="vars">$h1</span><span> = MagickGetImageHeight(</span><span class="vars">$nmw_water</span><span>);    </span></li><li><span>    </span></li><li class="alt"><span>        </span><span class="vars">$nmw</span><span> =NewMagickWand();    </span></li><li><span>        MagickReadImage(</span><span class="vars">$nmw</span><span>, </span><span class="vars">$src_file</span><span>);    </span></li><li class="alt"><span>    </span></li><li><span>        </span><span class="comment">// 默认的加水印位置调整   </span><span> </span></li><li class="alt"><span>        </span><span class="vars">$lt_w</span><span> = 50;    </span></li><li><span>        </span><span class="vars">$lt_h</span><span> = 50;    </span></li><li class="alt"><span>    </span></li><li><span>        </span><span class="keyword">if</span><span>(</span><span class="vars">$x</span><span> == 0){    </span></li><li class="alt"><span>            </span><span class="vars">$w</span><span> = MagickGetImageWidth(</span><span class="vars">$nmw</span><span>);    </span></li><li><span>            </span><span class="vars">$h</span><span> = MagickGetImageHeight(</span><span class="vars">$nmw</span><span>);    </span></li><li class="alt"><span>    </span></li><li><span>            </span><span class="vars">$x</span><span> = </span><span class="vars">$w</span><span>;    </span></li><li class="alt"><span>            </span><span class="vars">$y</span><span> = </span><span class="vars">$h</span><span>;    </span></li><li><span>        }</span><span class="keyword">else</span><span>{    </span></li><li class="alt"><span>            </span><span class="comment">// 根据具体情况调整   </span><span> </span></li><li><span>            </span><span class="vars">$lt_w</span><span> = 30;    </span></li><li class="alt"><span>            </span><span class="vars">$lt_h</span><span> = 40;    </span></li><li><span>        }    </span></li><li class="alt"><span>    </span></li><li><span>        MagickCompositeImage(</span><span class="vars">$nmw</span><span>, </span><span class="vars">$nmw_water</span><span>, MW_OverCompositeOp, </span><span class="vars">$x</span><span> - </span><span class="vars">$w1</span><span> - </span><span class="vars">$lt_w</span><span>, </span><span class="vars">$y</span><span> - </span><span class="vars">$h1</span><span> - </span><span class="vars">$lt_h</span><span>);    </span></li><li class="alt"><span>        MagickWriteImage(</span><span class="vars">$nmw</span><span>, </span><span class="vars">$output_file</span><span>);    </span></li><li><span>    </span></li><li class="alt"><span>        DestroyMagickWand(</span><span class="vars">$nmw</span><span>);            </span></li><li><span>    }    </span></li><li class="alt"><span>    </span></li><li><span>    </span><span class="comment">// 还是groovy的eachFileRecurse好用啊   </span><span> </span></li><li class="alt"><span>    </span><span class="keyword">function</span><span> add_wm_recurse(</span><span class="vars">$nmw_water</span><span>, </span><span class="vars">$to_dir</span><span>, </span><span class="vars">$output_dir</span><span>, </span><span class="vars">$arr</span><span>) {    </span></li><li><span>        </span><span class="vars">$dp</span><span> = dir(</span><span class="vars">$to_dir</span><span>);    </span></li><li class="alt"><span>        </span><span class="keyword">while</span><span>(</span><span class="vars">$file</span><span>=</span><span class="vars">$dp</span><span>->read()){    </span></span></li>
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<span>            </span><span class="keyword">if</span><span>(</span><span class="vars">$file</span><span> != </span><span class="string">.</span><span> && </span><span class="vars">$file</span><span> != </span><span class="string">..</span><span>){    </span>
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<span>                </span><span class="keyword">if</span><span>(</span><span class="func">is_dir</span><span>(</span><span class="vars">$to_dir</span><span> . </span><span class="string">/</span><span> . </span><span class="vars">$file</span><span>)){    </span>
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<span>                    </span><span class="func">mkdir</span><span>(</span><span class="vars">$output_dir</span><span> . </span><span class="string">/</span><span> . </span><span class="vars">$file</span><span>);    </span>
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<li class="alt">
<span>                    add_wm_recurse(</span><span class="vars">$nmw_water</span><span>, </span><span class="vars">$to_dir</span><span> . </span><span class="string">/</span><span> . </span><span c>
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<span id="url" itemprop="url">http://www.bkjia.com/PHPjc/486032.html</span><span id="indexUrl" itemprop="indexUrl">www.bkjia.com</span><span id="isOriginal" itemprop="isOriginal">true</span><span id="isBasedOnUrl" itemprop="isBasedOnUrl">http://www.bkjia.com/PHPjc/486032.html</span><span id="genre" itemprop="genre">TechArticle</span><span id="description" itemprop="description">直接分享源码 ?php function add_wm( $nmw_water , $src_file , $output_file , $x , $y ){ if ( file_exists ( $output_file )) return ; $w1 =MagickGetImageWidth( $nmw_water ); $h1...</span>
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