PHP Image processing Extension Php_imagick class library use

A handy class library for encapsulating PHP extensions Php_imagick

Imagick provides an extremely rich image processing method, which describes a class library that encapsulates Php_imagick:

Class Lib_image_imagick{private $image = Null;private $type = null;//constructor Public function __construct () {}/destructor public function __destruct () {if ($this->image!==null) $this->image->destroy ()}//Load image Public Function open ($path) { $this->image = new Imagick ($path), if ($this->image) {$this->type = strtolower ($this->image->getimagefo Rmat ());} return $this->image;} Public Function Cropimage ($width =0, $height =0) {if ($width <=0 | | $height <=0) return; $this->image-> Cropthumbnailimage ($width, $height);} Public Function thumbnailimage ($width =0, $height =0) {if ($width <=0) return; $this->image->thumbnailimage ($ width, NULL);} Public function crop ($x =0, $y =0, $width =null, $height =null) {if ($width ==null) $width = $this->image->getimagewidt    H ()-$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); }}/** change image size $fit: Fit size ' Force ': Forces the picture to form $width x $height size ' scale ': scales the picture proportionally in the safe box $width x $height, the image size is not exactly equal to the output after scaling $wi DTH X $height ' Scale_fill ': Scale the picture proportionally in the safe box $width X $height, where there is no pixels inside the security box fill color, you can set the background fill color when using this parameter $BG _color = Array (255,255,255) (red , green, blue, transparency) transparency (0 opaque-127 fully transparent)) Other: Smart mode can scale the image and load the middle part of the image $width X $height pixel size $fit = ' force ', ' scale ', ' Scale_fill ' When: Output full image $fi t = image orientation value, output to the specified position part of the image of the letter and the image of theThe relationship should be as follows: North_west North North_eastwest Center eastsouth_west South South_east*/public function Resiz E_to ($width = $height =, $fit = ' center ', $fill _color = Array (255,255,255,0)) {switch ($fit) {C                ASE ' 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 = $canvas;        }}//Add Watermark Picture Public Function Add_watermark ($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 ($draw);        }}//Add watermark Text Public function Add_text ($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 ($dra        W, $x, $y, $angle, $text);    }} else {$this->image->annotateimage ($draw, $x, $y, $angle, $text); }}//save to the specified path public function save_to ($path) {if ($this->type== ' gif ') {$this->image->writeimages ($pa    th, true);    } else {$this->image->writeimage ($path);    }}//Output image Public Function output ($header = True) {if ($header) header (' Content-type: '. $this->type); echo $this->image->getimagesblob ();}         Public Function Get_width () {$size = $this->image->getimagepage (); return $size [' width '];}         Public Function Get_height () {$size = $this->image->getimagepage (); return $size [' Height '];} Set the image type, the default is the same as the source type public Function set_type ($type = ' png ') {$this->type = $type; $this->image->setimageformat ($type);}  Gets the source image type Public Function Get_type () {return $this->type;}  Whether the current object is a picture public function is_image () {if ($this->image) return True;elsereturn false;} Public function thumbnail ($width = $height, $fit = True) {$this->image->thumbnailimage ($width, $height, $fit);}  Create thumbnails $fit true to maintain proportions and generate thumbnails in the safe box $width X $height/* Add a border $width: Left and Right border width $height: top and Bottom Border width $color: color: RGB color ' rgb (255,0,0) ' or 16 binary color ' #FF0000 ' or color word ' white '/' red ' ... */public function border ($width, $height, $color = ' rgb (up, up) ') {$color =n EW Imagickpixel (); $color->setcolor ($color); $this->image->borderimage ($color, $width, $height);} Public function blur ($radius, $sigma) {$this->image->blurimage ($radius, $sigma);}//Blur public function Gaussian_ Blur ($radius, $sigma) {$this->image->gaussianblurimage ($radius, $sigma);}//Gaussian blur Public function Motion_blur ($ RadiuS, $sigma, $angle) {$this->image->motionblurimage ($radius, $sigma, $angle);}//Motion blur Public function Radial_blur ($ RADIUS) {$this->image->radialblurimage ($radius);}//radial blur public function add_noise ($type =null) {$this Image->addnoiseimage ($type ==null?imagick::noise_impulse: $type);} Add noise Public Function level ($black _point, $gamma, $white _point) {$this->image->levelimage ($black _point, $gamma , $white _point);} Adjust levels Public Function modulate ($brightness, $saturation, $hue) {$this->image->modulateimage ($brightness, $ saturation, $hue);} Adjust brightness, saturation, hue public function charcoal ($radius, $sigma) {$this->image->charcoalimage ($radius, $sigma);}// Sketch Public Function Oil_paint ($radius) {$this->image->oilpaintimage ($radius);}//Oil painting effect public function flop () {$ This->image->flopimage ();} Flip Public Function Flip () {$this->image->flipimage ();}//Flip vertically}

