>백엔드 개발 >PHP 튜토리얼 >PHP_php 기술로 다양한 그림 효과를 얻기 위해 Imagick을 사용하는 예

PHP_php 기술로 다양한 그림 효과를 얻기 위해 Imagick을 사용하는 예

不言
不言원래의
2018-05-15 14:09:565562검색

imagick은 강력한 이미지 처리 라이브러리입니다.
제가 번역이라고 부르는 것은 실제로 imagick의 주요 기능에 대한 간략한 소개이거나, 제가 생각하기에 더 실용적이라고 생각되는 기능에 대한 소개와 그 사용 예입니다.
제 영어 실력이 부족하기 때문에 더 대중적이고 실용적인 언어를 사용하여 설명합니다.
먼저 눈부신 효과 세트를 즐겨보세요:
오프셋 이미지:
예:

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->rollImage(20,39);  
echo $image;  
?>

thumbnailImage($width,$height) 이미지 크기 변경
예:

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->thumbnailImage(100,0);  
echo $image;  
?>

addNoiseImage(int $noise_type [, int $channel= Imagick::CHANNEL_ALL ])
기능:
이미지에 임의의 노이즈 추가
인터페론 추가

코드 복사 코드는 다음과 같습니다.

Noise constants ( $noise_type 类型)  
imagick::NOISE_UNIFORM (integer)  
imagick::NOISE_GAUSSIAN (integer)  
imagick::NOISE_MULTIPLICATIVEGAUSSIAN (integer)  
imagick::NOISE_IMPULSE (integer)  
imagick::NOISE_LAPLACIAN (integer)  
imagick::NOISE_POISSON (integer)  
Channel constants ( $channel 类型)  
imagick::CHANNEL_UNDEFINED (integer)  
imagick::CHANNEL_RED (integer)  
imagick::CHANNEL_GRAY (integer)  
imagick::CHANNEL_CYAN (integer)  
imagick::CHANNEL_GREEN (integer)  
imagick::CHANNEL_MAGENTA (integer)  
imagick::CHANNEL_BLUE (integer)  
imagick::CHANNEL_YELLOW (integer)  
imagick::CHANNEL_ALPHA (integer)  
imagick::CHANNEL_OPACITY (integer)  
imagick::CHANNEL_MATTE (integer)  
imagick::CHANNEL_BLACK (integer)  
imagick::CHANNEL_INDEX (integer)  
imagick::CHANNEL_ALL (integer)

예:

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->thumbnailImage(100,0);  
$image->addNoiseImage(imagick::NOISE_POISSON,imagick::CHANNEL_OPACITY);  
echo $image;  
?>

annotateImage 텍스트 이미지 생성

예:

코드 복사 코드는 다음과 같습니다.

<?php  
$image = new Imagick();  
$draw = new ImagickDraw();  
$pixel = new ImagickPixel( &#39;gray&#39; );  
$image->newImage(800, 75, $pixel);  
$pixel->setColor(&#39;black&#39;);  
$draw->setFont(&#39;Bookman-DemiItalic&#39;);  
$draw->setFontSize( 30 );  
$image->annotateImage($draw, 10, 45, 0, &#39;The quick brown fox jumps over the lazy dog&#39;);  
$image->setImageFormat(&#39;png&#39;);  
header(&#39;Content-type: image/png&#39;);  
echo $image;  
?>

blurImage(float $radius, float $sigma [, int $channel ])
이미지에 흐림 필터 추가 이미지 흐림 처리
매개변수:

코드 복사 코드는 다음과 같습니다.

int $channel :  
imagick::CHANNEL_UNDEFINED (integer)  
imagick::CHANNEL_RED (integer)  
imagick::CHANNEL_GRAY (integer)  
imagick::CHANNEL_CYAN (integer)  
imagick::CHANNEL_GREEN (integer)  
imagick::CHANNEL_MAGENTA (integer)  
imagick::CHANNEL_BLUE (integer)  
imagick::CHANNEL_YELLOW (integer)  
imagick::CHANNEL_ALPHA (integer)  
imagick::CHANNEL_OPACITY (integer)  
imagick::CHANNEL_MATTE (integer)  
imagick::CHANNEL_BLACK (integer)  
imagick::CHANNEL_INDEX (integer)  
imagick::CHANNEL_ALL (integer)

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->blurImage(5,3);  
echo $image;  
?>

borderImage (혼합 $bordercolor, int $width, int $height) 이미지 테두리 처리
예:

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->borderImage($color,5,4);  
  
$image->blurImage(5,5,imagick::CHANNEL_GREEN);  
echo $image;  
?>

charcoalImage(float $radius, float $sigma) 이미지 스케치 처리
매개변수 설명:
$radius: 작을수록 얇아집니다.
$sigma: 잉크가 클수록 잉크가 어두워지고 그 반대도 마찬가지입니다.
예:

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->borderImage($color,5,4);  
$image->charcoalImage(0.0001,0.001);  
//$image->blurImage(5,5,imagick::CHANNEL_GREEN);  
echo $image;  
?>

chopImage ( int $ width , int $height , int $x , int $y )
매개변수 설명: 이미지 영역의 특정 범위를 삭제합니다.
매개변수 설명이 없으므로 한눈에 알 수 있습니다.

colorizeImage( 혼합 $ colorize , 혼합 $opacity ) 혼합 채우기 색상
$colorize color
$opacit 투명도
예:

코드 복사 코드 다음과 같습니다:

<?php  
/* 
胶卷底片效果 
*/  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->negateImage(false);  
$image->colorizeImage(&#39;#000&#39;,1.0);  
echo $image;  
?>

embossImage ( float $radius , float $sigma )
기능: 회색조 3D 이미지를 반환하는 것은 그리 좋지 않습니다.
예:

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->embossImage(1,1);  
echo $image;  
?>

(2개 렌더링)

flipImage(void)
기능: 이미지 반사 생성(수직 뒤집기)
예:

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->flipImage();  
echo $image;  
?>

flopImage(void)
기능: 이미지를 가로로 뒤집습니다

코드 복사 코드는 다음과 같습니다:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->flopImage();  
echo $image;  
?>

frameImage(mixed $matte_color,int $width, int $height,int $inner_bevel, int $outer_bevel)
기능 : 3D 이미지 테두리 생성
매개변수 설명:
$matte_color: color
$inner_bevel: 테두리의 내부 경사
$outer_bevel: 외부 테두리 경사
예 :

코드 복사 코드는 다음과 같습니다.

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->frameImage($color,11,11,1,10);  
echo $image;  
?>

注意事项: 
$width(宽度)不能小于$inner_bevel(边框内部倾斜度)  
Imagick::gammaImage (float $gamma [,int $channel= Imagick::CHANNEL_ALL]) 
功能:调整图像灰度系数 
参数说明: 
float $gamma :灰度系数值 
$channel 默认为 Imagick::CHANNEL_ALL 
Imagick::CHANNEL_ALL 
例子 1: 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->gammaImage(30);  
echo $image;  
?>

例子 2:

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->gammaImage(30);  
echo $image;  
?>

gaussianBlurImage ( float $radius , float $sigma [, int $channel= Imagick::CHANNEL_ALL ] ) 
功能:高斯模糊处理 类似于photo的高斯模糊 
参数说明: 
float $radius:高斯模糊的半径,像素,不包括中心象素。 
float $sigma :高斯的标准偏差,以像素为单位。我觉得这个参数最重要。 
int $channel :图像颜色模式。 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->gaussianBlurImage(30,3);  
echo $image;  
?>

levelImage ( float $blackPoint , float $gamma , float $whitePoint [, int $channel= Imagick::CHANNEL_ALL ] ) 
功能: 调整图像的色阶(Adjusts the levels of an image) 
参数说明 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->levelImage(4,4,4);  
echo $image;  
?>

例子2: 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->levelImage(200,200,200,imagick::CHANNEL_GREEN);  
echo $image;  
?>

magnifyImage( void ) 
功能说明:简便的图像等比例放大2倍(Is a convenience method that scales an image proportionally to twice its original size. ) 
例子: 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->magnifyImage ();  
echo $image;  
?>

medianFilterImage ( float $radius ) 
功能:特是的滤镜 有点像photoshop 调色刀滤镜 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->medianFilterImage(5);  
echo $image;  
?>

minifyImage(void)  
功能:图小缩小一倍(Scales an image proportionally to half its size) 
例子: 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->minifyImage();  
echo $image;  
?>

modulateImage ( float $brightness , float $saturation , float $hue ) 
功能:控制调整图像的 亮度、饱和度、色调。 
参数说明: 
float $brightness: 亮度 
float $saturation :饱和度 
float $hue 色调 
例子1: 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->modulateImage(100,1,100);  
echo $image;  
?>

例子2:

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$image->modulateImage(250,1,250);  
echo $image;  
?>

motionBlurImagemotionBlurImage ( float $radius , float $sigma , float $angle [, int $channel= Imagick::CHANNEL_DEFAULT ] ) 
功能:模拟运动模糊(Simulates motion blur) ,类似photoshop的动感模糊滤镜功能 
参数说明: 
float $radius: 高斯 半径,不包过中心像素。 
float $sigma:标准偏差的高斯,以像素为单位。【重要参数】 
float $angle:模糊角度。 
int $channel:图像颜色模式。默认为 Imagick::CHANNEL_DEFAULT 
例子1: 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->motionBlurImage (61,10,10);  
echo $image;  
?>

例子2: 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->motionBlurImage (201,10,100);  
echo $image;  
?>

oilPaintImage ( float $radius ): 
功能说明: 模拟油画滤镜(Simulates an oil painting) 
例子: 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->oilPaintImage(1);  
echo $image;  
?>

radialBlurImage ( float $angle [, int $channel= Imagick::CHANNEL_ALL ] ) 
功能: 径向模糊(Radial blurs an image) 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->radialBlurImage(30);  
echo $image;  
?>

raiseImage ( int $width , int $height , int $x , int $y , bool $raise ) 
功能说明:创建3D图像按钮(Creates a simulated 3d button-like effect) 

复制代码 代码如下:

<?php  
ini_set(&#39;display_errors&#39;,1);  
header(&#39;Content-type: image/jpeg&#39;);  
$image = new Imagick(&#39;1.jpg&#39;);  
$color=new ImagickPixel();  
$color->setColor("rgb(220,220,220)");  
$image->raiseImage(10,10,3,5,6);  
echo $image;  
?>

附1:要求缩小图片尺寸、增加半透明边框,读入exif信息,按指定要求显示在图片上

复制代码 代码如下:

$towidth = &#39;500&#39;;  
$toheight = &#39;700&#39;; //设置图片调整大小时允许的最大宽度和高度  
$sourcefile = &#39;./b.jpg&#39;; //定义一个图像文件路径  
//$image->writeImage(&#39;./b.jpg.bak&#39;); //可以备份这个图片  
$myimage = new Imagick( $sourcefile ); //读入该图像文件  
$exifobject = my_exif( $myimage ); //自写函数,读取exif信息(拍摄数据),按自己的要求排列exif信息,返回对象  
//$myimage->setImageFormat(&#39;jpeg&#39;); //把图片转为jpg格式  
$myimage->setCompressionQuality( 100 ); //设置jpg压缩质量,1 - 100  
$myimage->enhanceImage(); //去噪点  
$sourcewidth = $myimage->getImageWidth(); //获取读入图像原始大小  
if ( $sourcewidth > $towidth )  
{  
  $myimage->scaleImage( $towidth, $toheight, true ); //调整图片大小  
}  
$myimage->raiseImage( 8, 8, 0, 0, 1 ); //加半透明边框  
$resizewidth = $myimage->getImageWidth(); //读出调整之后的图片大小  
$resizeheight = $myimage->getImageHeight();  
$drawback = new ImagickDraw(); //实例化一个绘画对象,绘制半透明黑色背景给exif信息用  
$drawback->setFillColor( new ImagickPixel(&#39;#000000&#39;) ); //设置填充颜色为黑色  
$drawback->setFillOpacity( 0.6 ); //填充透明度为0.6,参数0.1-1,1为不透明  
$drawback->rectangle( $resizewidth / 2 - 190, $resizeheight - 50, $resizewidth / 2 + 190, $resizeheight - 12 ); //绘制矩形参数,分别为左上角x、y,右下角x、y  
$myimage->drawImage( $drawback ); //确认到image中绘制该矩形框  
$draw = new ImagickDraw(); //实例化一个绘画对象,绘制exif文本信息嵌入图片中  
$draw->setFont( &#39;./xianhei.ttf&#39; ); //设置文本字体,要求ttf或者ttc字体,可以绝对或者相对路径  
$draw->setFontSize( 11 ); //设置字号  
$draw->setTextAlignment( 2 ); //文字对齐方式,2为居中  
$draw->setFillColor( &#39;#FFFFFF&#39; ); //文字填充颜色  
$myimage->annotateImage( $draw, $resizewidth / 2, $resizeheight - 39, 0, $exifobject->row1 ); //绘制第一行文本,居中  
$myimage->annotateImage( $draw, $resizewidth / 2, $resizeheight - 27, 0, $exifobject->row2 ); //绘制第二行文本,居中  
$myimage->annotateImage( $draw, $resizewidth / 2, $resizeheight - 15, 0, $exifobject->row3 ); //绘制第三行文本,居中  
/* Output the image with headers */  
header( &#39;Content-type: image/jpeg&#39; ); //php文件输出mime类型为jpeg图片  
echo $myimage; //在当前php页面输出图片  
//$image->writeImage(&#39;./b.new.jpg&#39;); //如果图片不需要在当前php程序中输出,使用写入图片到磁盘函数,上面的设置header也可以去除  
$myimage->clear();  
$myimage->destroy(); //释放资源  
//自写函数,读取exif信息,返回对象  
function my_exif( $myimage )  
{  
  $exifArray = array( &#39;exif:Model&#39; => &#39;未知&#39;, &#39;exif:DateTimeOriginal&#39; => &#39;未知&#39;, &#39;exif:ExposureProgram&#39; => &#39;未知&#39;, &#39;exif:FNumber&#39; => &#39;0/10&#39;, &#39;exif:ExposureTime&#39; => &#39;0/10&#39;, &#39;exif:ISOSpeedRatings&#39; => &#39;未知&#39;,  
    &#39;exif:MeteringMode&#39; => &#39;未知&#39;, &#39;exif:Flash&#39; => &#39;关闭闪光灯&#39;, &#39;exif:FocalLength&#39; => &#39;未知&#39;, &#39;exif:ExifImageWidth&#39; => &#39;未知&#39;, &#39;exif:ExifImageLength&#39; => &#39;未知&#39; ); //初始化部分信息,防止无法读取照片exif信息时运算发生错误  
  $exifArray = $myimage->getImageProperties( "exif:*" ); //读取图片的exif信息,存入$exifArray数组  
  //如果需要显示原数组可以使用print_r($exifArray);  
  $r->row1 = &#39;相机:&#39; . $exifArray[&#39;exif:Model&#39;];  
  $r->row1 = $r->row1 . &#39; 拍摄时间:&#39; . $exifArray[&#39;exif:DateTimeOriginal&#39;];  
  switch ( $exifArray[&#39;exif:ExposureProgram&#39;] )  
  {  
    case 1:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "手动(M)";  
      break; //Manual Control  
    case 2:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "程序自动(P)";  
      break; //Program Normal  
    case 3:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "光圈优先(A,Av)";  
      break; //Aperture Priority  
    case 4:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "快门优先(S,Tv)";  
      break; //Shutter Priority  
    case 5:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "慢速快门";  
      break; //Program Creative (Slow Program)  
    case 6:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "运动模式";  
      break; //Program Action(High-Speed Program)  
    case 7:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "人像";  
      break; //Portrait  
    case 8:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "风景";  
      break; //Landscape  
    default:  
      $exifArray[&#39;exif:ExposureProgram&#39;] = "其它";  
  }  
  $r->row1 = $r->row1 . &#39; 模式:&#39; . $exifArray[&#39;exif:ExposureProgram&#39;];  
  $exifArray[&#39;exif:FNumber&#39;] = explode( &#39;/&#39;, $exifArray[&#39;exif:FNumber&#39;] );  
  $exifArray[&#39;exif:FNumber&#39;] = $exifArray[&#39;exif:FNumber&#39;][0] / $exifArray[&#39;exif:FNumber&#39;][1];  
  $r->row2 = &#39;光圈:F/&#39; . $exifArray[&#39;exif:FNumber&#39;];  
  $exifArray[&#39;exif:ExposureTime&#39;] = explode( &#39;/&#39;, $exifArray[&#39;exif:ExposureTime&#39;] );  
  if ( ($exifArray[&#39;exif:ExposureTime&#39;][0] / $exifArray[&#39;exif:ExposureTime&#39;][1]) >= 1 )  
  {  
    $exifArray[&#39;exif:ExposureTime&#39;] = sprintf( "%.1fs", (float)$exifArray[&#39;exif:ExposureTime&#39;][0] / $exifArray[&#39;exif:ExposureTime&#39;][1] );  
  } else  
  {  
    $exifArray[&#39;exif:ExposureTime&#39;] = sprintf( "1/%ds", $exifArray[&#39;exif:ExposureTime&#39;][1] / $exifArray[&#39;exif:ExposureTime&#39;][0] );  
  }  
  $r->row2 = $r->row2 . &#39; 快门:&#39; . $exifArray[&#39;exif:ExposureTime&#39;];  
  $r->row2 = $r->row2 . &#39; ISO:&#39; . $exifArray[&#39;exif:ISOSpeedRatings&#39;];  
  $exifArray[&#39;exif:ExposureBiasValue&#39;] = explode( "/", $exifArray[&#39;exif:ExposureBiasValue&#39;] );  
  $exifArray[&#39;exif:ExposureBiasValue&#39;] = sprintf( "%1.1feV", ((float)$exifArray[&#39;exif:ExposureBiasValue&#39;][0] / $exifArray[&#39;exif:ExposureBiasValue&#39;][1] * 100) / 100 );  
  if ( (float)$exifArray[&#39;exif:ExposureBiasValue&#39;] > 0 )  
  {  
    $exifArray[&#39;exif:ExposureBiasValue&#39;] = "+" . $exifArray[&#39;exif:ExposureBiasValue&#39;];  
  }  
  $r->row2 = $r->row2 . &#39; 补偿:&#39; . $exifArray[&#39;exif:ExposureBiasValue&#39;];  
  switch ( $exifArray[&#39;exif:MeteringMode&#39;] )  
  {  
    case 0:  
      $exifArray[&#39;exif:MeteringMode&#39;] = "未知";  
      break;  
    case 1:  
      $exifArray[&#39;exif:MeteringMode&#39;] = "矩阵";  
      break;  
    case 2:  
      $exifArray[&#39;exif:MeteringMode&#39;] = "中央重点平均";  
      break;  
    case 3:  
      $exifArray[&#39;exif:MeteringMode&#39;] = "点测光";  
      break;  
    case 4:  
      $exifArray[&#39;exif:MeteringMode&#39;] = "多点测光";  
      break;  
    default:  
      $exifArray[&#39;exif:MeteringMode&#39;] = "其它";  
  }  
  $r->row2 = $r->row2 . &#39; 测光:&#39; . $exifArray[&#39;exif:MeteringMode&#39;];  
  switch ( $exifArray[&#39;exif:Flash&#39;] )  
  {  
    case 1:  
      $exifArray[&#39;exif:Flash&#39;] = "开启闪光灯";  
      break;  
  }  
  $r->row2 = $r->row2 . &#39; &#39; . $exifArray[&#39;exif:Flash&#39;];  
  if ( $exifArray[&#39;exif:FocalLengthIn35mmFilm&#39;] )  
  {  
    $r->row3 = &#39;等效焦距:&#39; . $exifArray[&#39;exif:FocalLengthIn35mmFilm&#39;] . "mm";  
  } else  
  {  
    $exifArray[&#39;exif:FocalLength&#39;] = explode( "/", $exifArray[&#39;exif:FocalLength&#39;] );  
    $exifArray[&#39;exif:FocalLength&#39;] = sprintf( "%4.1fmm", (double)$exifArray[&#39;exif:FocalLength&#39;][0] / $exifArray[&#39;exif:FocalLength&#39;][1] );  
    $r->row3 = &#39;焦距:&#39; . $exifArray[&#39;exif:FocalLength&#39;];  
  }  
  $r->row3 = $r->row3 . &#39; 原始像素:&#39; . $exifArray[&#39;exif:ExifImageWidth&#39;] . &#39;x&#39; . $exifArray[&#39;exif:ExifImageLength&#39;] . &#39;px&#39;;  
  if ( $exifArray[&#39;exif:Software&#39;] )  
  {  
    $r->row3 = $r->row3 . &#39; 后期:&#39; . $exifArray[&#39;exif:Software&#39;];  
  }  
  return $r;  
}

附2:处理图片水印

复制代码 代码如下:

<?php  
//获取水印图片  
$logo = new Imagick("logo.png");  
$logo->setImageResolution(0.01,0.03);  
  
//创建一个Imagick对象,同时获取要处理的源图  
$im = new Imagick( "old_large_img_2.jpg" );  
  
//获取源图片宽和高  
$srcWH = $im->getImageGeometry();  
  
//图片等比例缩放宽和高设置  
if($srcWH[&#39;width&#39;]>710){  
$srcW[&#39;width&#39;] = 710;  
$srcH[&#39;height&#39;] = $srcW[&#39;width&#39;]/$srcWH[&#39;width&#39;]*$srcWH[&#39;height&#39;];  
}else{  
$srcW[&#39;width&#39;] = $srcWH[&#39;width&#39;];  
$srcH[&#39;height&#39;] = $srcWH[&#39;height&#39;];  
}  
  
//按照比例进行缩放  
$im->thumbnailImage( $srcW[&#39;width&#39;], $srcH[&#39;height&#39;], true );  
  
// 按照缩略图大小创建一个有颜色的图片  
$canvas = new Imagick();  
$canvas->newImage( $srcW[&#39;width&#39;], $srcH[&#39;height&#39;], &#39;black&#39;, &#39;jpg&#39; ); //pink,black  
  
//添加水印  
$im->compositeImage($logo,Imagick::COMPOSITE_OVER,$srcW[&#39;width&#39;]-280,$srcH[&#39;height&#39;]-77);  
$canvas->setcompressionquality(91);  
//合并图片  
$canvas->compositeImage( $im, imagick::COMPOSITE_OVER, 0, 0);  
  
//输出图片  
header( "Content-Type: image/jpg" );  
echo $canvas;    
  
//生成图片  
$canvas->writeImage( "test_img/old_large_img_2_96.jpg" );  
?>

 

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