| <?php Class Lib_image_imagick
{
Private $image = null;
Private $type = null; Constructors
Public Function __construct () {}
destructor
Public Function __destruct ()
{
if ($this->image!==null) $this->image->destroy ();
}
Loading images
Public function open ($path)
{
$this->image = new Imagick ($path);
if ($this->image)
{
$this->type = Strtolower ($this->image->getimageformat ());
}
return $this->image;
}
Public function crop ($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);
}
} /*
* Change image size
$fit: Fit the size way
' Force ': Force the picture to form $width X $height size
' Scale ': scales the picture proportionally in the security box $width x $height, and the image size is not exactly equal to $width x after the output is scaled $height
' Scale_fill ': scales the picture within the security box $width X $height, with no pixel fill in the Security box, setting the background fill color when using this parameter $BG _color = Array (255,255,255) (red, green, blue, transparent) Degrees (0 opaque-127 fully transparent))
Other: Intelligent mode can scale an image and load the middle part of an image $width X $height pixel size
$fit = ' force ', ' scale ', ' scale_fill ': Output full image
$fit = Image Azimuth value, output specified position part image
The correspondence between letters and images is as follows:
North_west North North_east
West Center East
South_west South South_east
*/
Public Function resize_to ($width = +, $height = $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 of ' 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 = $canvas;
}
}
Add a watermark Picture
Public Function Add_watermark ($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)
{
$frame->annotateimage ($draw, $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 ')
{
$this->image->writeimages ($path, 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 $size [' height '];
}
Sets the image type, which is the same as the source type by default
Public Function Set_type ($type = ' png ')
{
$this->type = $type;
$this->image->setimageformat ($type);
} Get 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;
Else
return false;
}
Public function thumbnail ($width =, $height = $fit = True) {$this->image->thumbnailimage ($width, $height, $fit);} Generate thumbnails $fit is true and the proportions are maintained and thumbnails are generated within the security box $width X $height
/*
Add a border
$width: Left and right border width
$height: Up and down border width
$color: color: RGB color ' rgb ( 255,0,0) ' or 16-color ' #FF0000 ' or the color word ' white '/' red ' ...
*/
public function border ($width, $height, $color = ' rgb (all, All) ')
{
$color =new 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: $type );} Add a noise point
Public Function level ($black _point, $gamma, $white _point) {$this->image->levelimage ($black _point, $gamma, $ White_point);} Adjust color levels
The 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 () {$this->image->flopimage ();}//Horizontal Flip
Public Function Flip () {$this->image->flipimage ();}//Flip vertically } |
