php图片裁剪扩展tclip
用于图片裁剪。有以下特点: 1.能进行人脸识别。图片中有人脸,将自动视为人脸区域为重要区域,将不会被裁剪掉。 2.自动识别其它重要区域。如果图片中未识别出人脸,则会根据特征分布计算出重区域。 总而言之,自动识别图片中的重要区域,并且在图片裁剪时保
用于图片裁剪。有以下特点:
1.能进行人脸识别。图片中有人脸,将自动视为人脸区域为重要区域,将不会被裁剪掉。
2.自动识别其它重要区域。如果图片中未识别出人脸,则会根据特征分布计算出重区域。
总而言之,自动识别图片中的重要区域,并且在图片裁剪时保留重要区域。
目前已经用于一淘玩客
效果演示:
原图:
常规从中间截取为 400 * 225 大小大图片。效果如下:
使用tclip裁剪图片效果如下:
安装步骤
源码下载
opencv2 下载地址??http://www.opencv.org.cn/index.php/Download
安装opencv2
此扩展依赖于opencv2.0 之上版本。因此安装前先安装opencv。opencv的安装步骤如下
yum install gtk+ gtk+-devel pkgconfig libpng zlib libjpeg libtiff cmake wget http://downloads.sourceforge.net/project/opencvlibrary/opencv-unix/2.4.4/OpenCV-2.4.4a.tar.bz2?r=http%3A%2F%2Fwww.opencv.org.cn%2Findex.php%2FDownload&ts=1375240385&use_mirror=ncu tar jxvf OpenCV-2.4.4a.tar.bz2 cd opencv-2.4.4/ cmake CMakeLists.txt make && make install vim /etc/profile #在 unset i 前增加 export PKG_CONFIG_PATH=/usr/lib/pkgconfig/:/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH #保持退出后,执行如下命令 source /etc/profile echo "/usr/local/lib/" > /etc/ld.so.conf.d/opencv.conf ldconfig
安装tclip扩展
下载源代码:http://code.taobao.org/svn/tclip/trunk
#cd 到源代码目录中的php_ext文件夹 /usr/local/php5/bin/phpize ./configure --with-php-config=/usr/local/php5/bin/php-config make && make install #修改php.ini。加入 extension=tclip.so #重启fpm即可 #查看是否加载成功 php -i | grep tclip tclip tclip support => enabled tclip.face_config_path => no value => no value
安装命令行
#cd 进入源码中的soft文件夹内 chmod +x ./tclip.sh ./tclip.sh
使用方法说明
第一种:在php中使用格式:
tclip(文件原路径,裁剪后的图片保存路径,裁剪后的图片宽度,裁剪后的图片高度)
示例:
$source_file = "/tmp/a.jpg"; $dest_file = "/www/a_dest.jpg"; $width = 400; $height = 200; tclip($source_file, $dest_file, $width, $height);
第二种:命令行
参数说明: -s 原图路径 -d 裁剪后的图片保存路径 -w 裁剪后的图片宽度 -h 裁剪后的图片高度 ./tclip -s a.jpg -d a_dest.jpg -w 400 -h 200
来源:http://www.oschina.net/p/tclip



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