标签:油画 with pix 析构 unset 一个 pre dea gif
1、wget https://pecl.php.net/get/imagick-3.4.3.tgz 2、tar zxvf imagick-3.4.3.tgz 3、cd imagick-3.4.3 4、/usr/local/php-7.1.7/bin/phpize 5、 ./configure --with-php-config=/usr/local/php-7.1.7/bin/php-config 6、 make && make install 7、ll /usr/local/php-7.1.7/lib/php/extensions/no-debug-non-zts-20160303/ 8、vim /usr/local/php-7.1.7/etc/php.ini 9、 /etc/init.d/php-fpm reload 10、/usr/local/php-7.1.7/bin/php -m
PHP建图通常都用GD库,因为是内置的不需要在服务器上额外安装插件,所以用起来比较省心,但是如果你的程序主要的功能就是处理图像,那麼就不建议用GD了,因为GD不但低效能而且能力也比较弱,佔用的系统资源也颇多,另外GD的creatfrom也有bug,而imagick却是一个很好的替代品,为此最近把我的一个项目由GD改成了imagick,但是改完之后出现了一些状况在此分享给大家.
/** Imagick图像处理类 用法: //引入Imagick物件 if(!defined(‘CLASS_IMAGICK‘)){require(Inc.‘class_imagick.php‘);} $Imagick=new class_imagick(); $Imagick->open(‘a.gif‘); $Imagick->resize_to(100,100,‘scale_fill‘); $Imagick->add_text(‘1024i.com‘,10,20); $Imagick->add_watermark(‘1024i.gif‘,10,50); $Imagick->save_to(‘x.gif‘); unset($Imagick); /**/ define(‘CLASS_IMAGICK‘,TRUE); class class_imagick{ private $image=null; private $type=null; // 构造 public function __construct(){} // 析构 public function __destruct(){ if($this->image!==null){$this->image->destroy();} } // 载入图像 public function open($path){ if(!file_exists($path)){ $this->image=null; return ; } $this->image=new Imagick($path); if($this->image){ $this->type=strtolower($this->image->getImageFormat()); } $this->image->stripImage(); return $this->image; } /** 图像裁切 /**/ public function crop($x=0,$y=0,$width=null,$height=null){ if($width==null) $width=$this->image->getImageWidth()-$x; if($height==null) $height=$this->image->getImageHeight()-$y; if($width<=0 || $height<=0) return; if($this->type==‘gif‘){ $image=$this->image; $canvas=new Imagick(); $images=$image->coalesceImages(); foreach($images as $frame){ $img=new Imagick(); $img->readImageBlob($frame); $img->cropImage($width,$height,$x,$y); $canvas->addImage($img); $canvas->setImageDelay($img->getImageDelay()); $canvas->setImagePage($width,$height,0,0); } $image->destroy(); $this->image=$canvas; }else{ $this->image->cropImage($width,$height,$x,$y); } } /** 更改图像大小 参数: $width:新的宽度 $height:新的高度 $fit: 适应大小 ‘force‘: 把图像强制改为$width X $height ‘scale‘: 按比例在$width X $height内缩放图片,结果不完全等於$width X $height ‘scale_fill‘:按比例在$width X $height内缩放图片,没有像素的地方填充顏色$fill_color=array(255,255,255)(红,绿,蓝,透明度[0不透明-127全透明]) 其他:智能模式,缩放图片并从正中裁切$width X $height的大小 注意: $fit=‘force‘,‘scale‘,‘scale_fill‘时输出完整图像 $fit=图像方位时输出指定位置部份的图像 字母与图像的对应关系如下: north_west north north_east west center east south_west south south_east /**/ public function resize_to($width=100,$height=100,$fit=‘center‘,$fill_color=array(255,255,255,0)){ switch($fit){ case ‘force‘: if($this->type==‘gif‘){ $image=$this->image; $canvas=new Imagick(); $images=$image->coalesceImages(); foreach($images as $frame){ $img=new Imagick(); $img->readImageBlob($frame); $img->thumbnailImage($width,$height,false); $canvas->addImage($img); $canvas->setImageDelay($img->getImageDelay()); } $image->destroy(); $this->image=$canvas; }else{ $this->image->thumbnailImage($width,$height,false); } break; case ‘scale‘: if($this->type==‘gif‘){ $image=$this->image; $images=$image->coalesceImages(); $canvas=new Imagick(); foreach($images as $frame){ $img=new Imagick(); $img->readImageBlob($frame); $img->thumbnailImage($width,$height,true); $canvas->addImage($img); $canvas->setImageDelay($img->getImageDelay()); } $image->destroy(); $this->image=$canvas; }else{ $this->image->thumbnailImage($width,$height,true); } break; case ‘scale_fill‘: $size=$this->image->getImagePage(); $src_width=$size[‘width‘]; $src_height=$size[‘height‘]; $x=0; $y=0; $dst_width=$width; $dst_height=$height; if($src_width*$height > $src_height*$width){ $dst_height=intval($width*$src_height/$src_width); $y=intval(($height-$dst_height)/2); }else{ $dst_width=intval($height*$src_width/$src_height); $x=intval(($width-$dst_width)/2); } $image=$this->image; $canvas=new Imagick(); $color=‘rgba(‘.$fill_color[0].‘,‘.$fill_color[1].‘,‘.$fill_color[2].‘,‘.$fill_color[3].‘)‘; if($this->type==‘gif‘){ $images=$image->coalesceImages(); foreach($images as $frame){ $frame->thumbnailImage($width,$height,true); $draw=new ImagickDraw(); $draw->composite($frame->getImageCompose(),$x,$y,$dst_width,$dst_height,$frame); $img=new Imagick(); $img->newImage($width,$height,$color,‘gif‘); $img->drawImage($draw); $canvas->addImage($img); $canvas->setImageDelay($img->getImageDelay()); $canvas->setImagePage($width,$height,0,0); } }else{ $image->thumbnailImage($width,$height,true); $draw=new ImagickDraw(); $draw->composite($image->getImageCompose(),$x,$y,$dst_width,$dst_height,$image); $canvas->newImage($width,$height,$color,$this->get_type()); $canvas->drawImage($draw); $canvas->setImagePage($width,$height,0,0); } $image->destroy(); $this->image=$canvas; break; default: $size=$this->image->getImagePage(); $src_width=$size[‘width‘]; $src_height=$size[‘height‘]; $crop_x=0; $crop_y=0; $crop_w=$src_width; $crop_h=$src_height; if($src_width*$height > $src_height*$width){ $crop_w=intval($src_height*$width/$height); }else{ $crop_h=intval($src_width*$height/$width); } switch($fit){ case ‘north_west‘: $crop_x=0; $crop_y=0; break; case ‘north‘: $crop_x=intval(($src_width-$crop_w)/2); $crop_y=0; break; case ‘north_east‘: $crop_x=$src_width-$crop_w; $crop_y=0; break; case ‘west‘: $crop_x=0; $crop_y=intval(($src_height-$crop_h)/2); break; case ‘center‘: $crop_x=intval(($src_width-$crop_w)/2); $crop_y=intval(($src_height-$crop_h)/2); break; case ‘east‘: $crop_x=$src_width-$crop_w; $crop_y=intval(($src_height-$crop_h)/2); break; case ‘south_west‘: $crop_x=0; $crop_y=$src_height-$crop_h; break; case ‘south‘: $crop_x=intval(($src_width-$crop_w)/2); $crop_y=$src_height-$crop_h; break; case ‘south_east‘: $crop_x=$src_width-$crop_w; $crop_y=$src_height-$crop_h; break; default: $crop_x=intval(($src_width-$crop_w)/2); $crop_y=intval(($src_height-$crop_h)/2); } $image=$this->image; $canvas=new Imagick(); if($this->type==‘gif‘){ $images=$image->coalesceImages(); foreach($images as $frame){ $img=new Imagick(); $img->readImageBlob($frame); $img->cropImage($crop_w,$crop_h,$crop_x,$crop_y); $img->thumbnailImage($width,$height,true); $canvas->addImage($img); $canvas->setImageDelay($img->getImageDelay()); $canvas->setImagePage($width,$height,0,0); } }else{ $image->cropImage($crop_w,$crop_h,$crop_x,$crop_y); $image->thumbnailImage($width,$height,true); $canvas->addImage($image); $canvas->setImagePage($width,$height,0,0); } $image->destroy(); $this->image=$canvas; } } /** 添加图片水印 参数: $path:水印图片(包含完整路径) $x,$y:水印座标 /**/ public function add_watermark($path,$x=0,$y=0){ $watermark=new Imagick($path); $draw=new ImagickDraw(); $draw->composite($watermark->getImageCompose(),$x,$y,$watermark->getImageWidth(),$watermark->getimageheight(),$watermark); if($this->type==‘gif‘){ $image=$this->image; $canvas=new Imagick(); $images=$image->coalesceImages(); foreach($image as $frame){ $img=new Imagick(); $img->readImageBlob($frame); $img->drawImage($draw); $canvas->addImage($img); $canvas->setImageDelay($img->getImageDelay()); } $image->destroy(); $this->image=$canvas; }else{ $this->image->drawImage($draw); } } /** 添加文字水印 参数: $text:水印文字 $x,$y:水印座标 /**/ public function add_text($text,$x=0,$y=0,$angle=0,$style=array()){ $draw=new ImagickDraw(); if(isset($style[‘font‘])) $draw->setFont($style[‘font‘]); if(isset($style[‘font_size‘])) $draw->setFontSize($style[‘font_size‘]); if(isset($style[‘fill_color‘])) $draw->setFillColor($style[‘fill_color‘]); if(isset($style[‘under_color‘])) $draw->setTextUnderColor($style[‘under_color‘]); if($this->type==‘gif‘){ foreach($this->image as $frame){ $frame->annotateImage($draw,$x,$y,$angle,$text); } }else{ $this->image->annotateImage($draw,$x,$y,$angle,$text); } } /** 图片存档 参数: $path:存档的位置和新的档案名 /**/ public function save_to($path){ $this->image->stripImage(); switch($this->type){ case ‘gif‘: $this->image->writeImages($path,true); return ; case ‘jpg‘: case ‘jpeg‘: $this->image->setImageCompressionQuality($_ENV[‘ImgQ‘]); $this->image->writeImage($path); return ; case ‘png‘: $flag = $this->image->getImageAlphaChannel(); // 如果png背景不透明则压缩 if(imagick::ALPHACHANNEL_UNDEFINED == $flag or imagick::ALPHACHANNEL_DEACTIVATE == $flag){ $this->image->setImageType(imagick::IMGTYPE_PALETTE); $this->image->writeImage($path); }else{ $this->image->writeImage($path); }unset($flag); return ; default: $this->image->writeImage($path); return ; } } // 直接输出图像到萤幕 public function output($header=true){ if($header) header(‘Content-type: ‘.$this->type); echo $this->image->getImagesBlob(); } /** 建立缩小图 $fit为真时,将保持比例并在$width X $height内產生缩小图 /**/ public function thumbnail($width=100,$height=100,$fit=true){$this->image->thumbnailImage($width,$height,$fit);} /** 给图像添加边框 $width: 左右边框宽度 $height: 上下边框宽度 $color: 顏色 /**/ public function border($width,$height,$color=‘rgb(220,220,220)‘){ $color=new ImagickPixel(); $color->setColor($color); $this->image->borderImage($color,$width,$height); } //取得图像宽度 public function get_width(){$size=$this->image->getImagePage();return $size[‘width‘];} //取得图像高度 public function get_height(){$size=$this->image->getImagePage();return $size[‘height‘];} // 设置图像类型 public function set_type($type=‘png‘){$this->type=$type;$this->image->setImageFormat($type);} // 取得图像类型 public function get_type(){return $this->type;} public function blur($radius,$sigma){$this->image->blurImage($radius,$sigma);} // 模糊 public function gaussian_blur($radius,$sigma){$this->image->gaussianBlurImage($radius,$sigma);} // 高斯模糊 public function motion_blur($radius,$sigma,$angle){$this->image->motionBlurImage($radius,$sigma,$angle);} // 运动模糊 public function radial_blur($radius){$this->image->radialBlurImage($radius);} // 径向模糊 public function add_noise($type=null){$this->image->addNoiseImage($type==null?imagick::NOISE_IMPULSE:$type);} // 添加噪点 public function level($black_point,$gamma,$white_point){$this->image->levelImage($black_point,$gamma,$white_point);} // 调整色阶 public function modulate($brightness,$saturation,$hue){$this->image->modulateImage($brightness,$saturation,$hue);} // 调整亮度,饱和度,色调 public function charcoal($radius,$sigma){$this->image->charcoalImage($radius,$sigma);} // 素描效果 public function oil_paint($radius){$this->image->oilPaintImage($radius);} // 油画效果 public function flop(){$this->image->flopImage();} // 水平翻转 public function flip(){$this->image->flipImage();} // 垂直翻转 }
标签:油画 with pix 析构 unset 一个 pre dea gif
原文地址:https://www.cnblogs.com/aoxueshou/p/8997653.html