PHP圖片處理類實現縮放、剪下、相框、浮水印、銳利化、旋轉、翻轉、透明度、反色等功能

使用PHP來處理一片，還是不錯的，下面是找到的一個PHP處理圖片的類，可以實現圖片的縮放、剪下、相框、浮水印、銳利化、旋轉、翻轉、透明度、反色功能操作。

<?php/*圖片處理函數功能：縮放、剪下、相框、浮水印、銳利化、旋轉、翻轉、透明度、反色處理並儲存記錄的思路：當有圖片有改動時自動產生一張新圖片，命名方式可以考慮在原圖片的基礎上加上步驟，例如：圖片名稱+__第幾步Power By:antsnet.netE-mail:antsnet.net@gmail.com網址：http://www.antsnet.net*/class picture{ var $PICTURE_URL;//要處理的圖片 var $DEST_URL="temp__01.jpg";//產生靶心圖表片位置 var $PICTURE_CREATE;//要建立的圖片 var $TURE_COLOR;//建立一個真彩圖象 var $PICTURE_WIDTH;//原圖片寬度 var $PICTURE_HEIGHT;//原圖片高度 /* 浮水印的類型，預設的為浮水印文字 */ var $MARK_TYPE=1; var $WORD;//經過UTF-8後的文字 var $WORD_X;//文字橫座標 var $WORD_Y;//文字縱座標 var $FONT_TYPE;//字型類型 var $FONT_SIZE="12";//字型大小 var $FONT_WORD;//文字 var $ANGLE=0;//文字的角度，預設為0 var $FONT_COLOR="#000000";//文字顏色 var $FONT_PATH="font/simkai.ttf";//字型庫，預設為宋體 var $FORCE_URL;//浮水印圖片 var $FORCE_X=0;//浮水印橫座標 var $FORCE_Y=0;//浮水印縱座標 var $FORCE_START_X=0;//切起浮水印的圖片橫座標 var $FORCE_START_Y=0;//切起浮水印的圖片縱座標 var $PICTURE_TYPE;//圖片類型 var $PICTURE_MIME;//輸出的頭部 /* 縮放比例為1的話就按縮放高度和寬度縮放 */ var $ZOOM=1;//縮放類型 var $ZOOM_MULTIPLE;//縮放比例 var $ZOOM_WIDTH;//縮放寬度 var $ZOOM_HEIGHT;//縮放高度 /* 裁切，按比例和固定長度、寬度 */ var $CUT_TYPE=1;//裁切類型 var $CUT_X=0;//裁切的橫座標 var $CUT_Y=0;//裁切的縱座標 var $CUT_WIDTH=100;//裁切的寬度 var $CUT_HEIGHT=100;//裁切的高度 /* 銳利化 */ var $SHARP="7.0";//銳利化程度 /* 透明度處理 */ var $ALPHA='100';//透明度在0-127之間 var $ALPHA_X="90"; var $ALPHA_Y="50"; /* 任意角度旋轉 */ var $CIRCUMROTATE="90.0";//注意，必須為浮點數 /* 出錯資訊 */ var $ERROR=array( 'unalviable'=>'沒有找到相關圖片!' ); /* 建構函式：函數初始化 */ function __construct($PICTURE_URL){  $this->get_info($PICTURE_URL); } function get_info($PICTURE_URL){  /*  處理原圖片的資訊,先檢測圖片是否存在,不存在則給出相應的資訊  */  @$SIZE=getimagesize($PICTURE_URL);  if(!$SIZE){   exit($this->ERROR['unalviable']);  }  //得到原圖片的資訊類型、寬度、高度  $this->PICTURE_MIME=$SIZE['mime'];  $this->PICTURE_WIDTH=$SIZE[0];  $this->PICTURE_HEIGHT=$SIZE[1];  //建立圖片  switch($SIZE[2]){   case 1:    $this->PICTURE_CREATE=imagecreatefromgif($PICTURE_URL);    $this->PICTURE_TYPE="imagejpeg";    $this->PICTURE_EXT="jpg";    break;   case 2:    $this->PICTURE_CREATE=imagecreatefromjpeg($PICTURE_URL);    $this->PICTURE_TYPE="imagegif";    $this->PICTURE_EXT="gif";    break;   case 3:    $this->PICTURE_CREATE=imagecreatefrompng($PICTURE_URL);    $this->PICTURE_TYPE="imagepng";    $this->PICTURE_EXT="png";    break;  }  /*  文字色彩轉換16進位轉換成10進位  */  preg_match_all("/([0-f]){2,2}/i",$this->FONT_COLOR,$MATCHES);  if(count($MATCHES)==3){   $this->RED=hexdec($MATCHES[0][0]);   $this->GREEN=hexdec($MATCHES[0][1]);   $this->BLUE=hexdec($MATCHES[0][2]);  } } #end of __construct /* 將16進位的色彩轉換成10進位的（R，G，B） */ function hex2dec(){  preg_match_all("/([0-f]){2,2}/i",$this->FONT_COLOR,$MATCHES);  if(count($MATCHES)==3){   $this->RED=hexdec($MATCHES[0][0]);   $this->GREEN=hexdec($MATCHES[0][1]);   $this->BLUE=hexdec($MATCHES[0][2]);  } } //縮放類型 function zoom_type($ZOOM_TYPE){  $this->ZOOM=$ZOOM_TYPE; } //對圖片進行縮放,如果不指定高度和寬度就進行縮放 function zoom(){  //縮放的大小  if($this->ZOOM==0){   $this->ZOOM_WIDTH=$this->PICTURE_WIDTH * $this->ZOOM_MULTIPLE;   $this->ZOOM_HEIGHT=$this->PICTURE_HEIGHT * $this->ZOOM_MULTIPLE;  }  //建立一個真彩圖象  $this->TRUE_COLOR=imagecreatetruecolor($this->ZOOM_WIDTH,$this->ZOOM_HEIGHT);  $WHITE=imagecolorallocate($this->TRUE_COLOR,255,255,255);  imagefilledrectangle($this->TRUE_COLOR,0,0,$this->ZOOM_WIDTH,$this->ZOOM_HEIGHT,$WHITE);  imagecopyresized($this->TRUE_COLOR,$this->PICTURE_CREATE,0,0,0,0,$this->ZOOM_WIDTH,$this->ZOOM_HEIGHT,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT); } #end of zoom //裁切圖片,按座標或自動 function cut(){  $this->TRUE_COLOR=imagecreatetruecolor($this->CUT_WIDTH,$this->CUT_WIDTH);  imagecopy($this->TRUE_COLOR,$this->PICTURE_CREATE, 0, 0, $this->CUT_X, $this->CUT_Y,$this->CUT_WIDTH,$this->CUT_HEIGHT); } #end of cut /* 在圖片上放文字或圖片 浮水印文字 */ function _mark_text(){  $this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  $this->WORD=mb_convert_encoding($this->FONT_WORD,'utf-8','gb2312');  /*  取得使用 TrueType 字型的文本的範圍  */  $TEMP = imagettfbbox($this->FONT_SIZE,0,$this->FONT_PATH,$this->WORD);  $WORD_LENGTH=strlen($this->WORD);  $WORD_WIDTH =$TEMP[2] - $TEMP[6];  $WORD_HEIGHT =$TEMP[3] - $TEMP[7];  /*  文字浮水印的預設位置為右下角  */  if($this->WORD_X==""){   $this->WORD_X=$this->PICTURE_WIDTH-$WORD_WIDTH;  }  if($this->WORD_Y==""){   $this->WORD_Y=$this->PICTURE_HEIGHT-$WORD_HEIGHT;  }  imagesettile($this->TRUE_COLOR,$this->PICTURE_CREATE);  imagefilledrectangle($this->TRUE_COLOR,0,0,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT,IMG_COLOR_TILED);  $TEXT2=imagecolorallocate($this->TRUE_COLOR,$this->RED,$this->GREEN,$this->Blue);  imagettftext($this->TRUE_COLOR,$this->FONT_SIZE,$this->ANGLE,$this->WORD_X,$this->WORD_Y,$TEXT2,$this->FONT_PATH,$this->WORD); } /* 浮水印圖片 */ function _mark_picture(){  /*  擷取浮水印圖片的資訊  */  @$SIZE=getimagesize($this->FORCE_URL);  if(!$SIZE){   exit($this->ERROR['unalviable']);  }  $FORCE_PICTURE_WIDTH=$SIZE[0];  $FORCE_PICTURE_HEIGHT=$SIZE[1];  //建立浮水印圖片  switch($SIZE[2]){   case 1:    $FORCE_PICTURE_CREATE=imagecreatefromgif($this->FORCE_URL);    $FORCE_PICTURE_TYPE="gif";    break;   case 2:    $FORCE_PICTURE_CREATE=imagecreatefromjpeg($this->FORCE_URL);    $FORCE_PICTURE_TYPE="jpg";    break;   case 3:    $FORCE_PICTURE_CREATE=imagecreatefrompng($this->FORCE_URL);    $FORCE_PICTURE_TYPE="png";    break;  }  /*    判斷浮水印圖片的大小，並產生靶心圖表片的大小，如果浮水印比圖片大，則產生圖片大小為浮水印圖片的大小。否則產生的圖片大小為原圖片大小。  */  $this->NEW_PICTURE=$this->PICTURE_CREATE;  if($FORCE_PICTURE_WIDTH>$this->PICTURE_WIDTH){   $CREATE_WIDTH=$FORCE_PICTURE_WIDTH-$this->FORCE_START_X;  }else{   $CREATE_WIDTH=$this->PICTURE_WIDTH;  }  if($FORCE_PICTURE_HEIGHT>$this->PICTURE_HEIGHT){   $CREATE_HEIGHT=$FORCE_PICTURE_HEIGHT-$this->FORCE_START_Y;  }else{   $CREATE_HEIGHT=$this->PICTURE_HEIGHT;  }  /*    建立一個畫布  */  $NEW_PICTURE_CREATE=imagecreatetruecolor($CREATE_WIDTH,$CREATE_HEIGHT);  $WHITE=imagecolorallocate($NEW_PICTURE_CREATE,255,255,255);  /*    將背景圖拷貝到畫布中  */  imagecopy($NEW_PICTURE_CREATE, $this->PICTURE_CREATE, 0, 0, 0, 0,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  /*    將靶心圖表片拷貝到背景圖片上  */  imagecopy($NEW_PICTURE_CREATE, $FORCE_PICTURE_CREATE, $this->FORCE_X, $this->FORCE_Y, $this->FORCE_START_X, $this->FORCE_START_Y,$FORCE_PICTURE_WIDTH,$FORCE_PICTURE_HEIGHT);  $this->TRUE_COLOR=$NEW_PICTURE_CREATE; } #end of mark function alpha_(){  $this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  $rgb="#CDCDCD";  $tran_color="#000000";  for($j=0;$j<=$this->PICTURE_HEIGHT-1;$j++){   for ($i=0;$i<=$this->PICTURE_WIDTH-1;$i++)   {    $rgb = imagecolorat($this->PICTURE_CREATE,$i,$j);    $r = ($rgb >> 16) & 0xFF;    $g = ($rgb >> 8) & 0xFF;    $b = $rgb & 0xFF;    $now_color=imagecolorallocate($this->PICTURE_CREATE,$r,$g,$b);    if ($now_color==$tran_color)    {     continue;    }    else    {     $color=imagecolorallocatealpha($this->PICTURE_CREATE,$r,$g,$b,$ALPHA);     imagesetpixel($this->PICTURE_CREATE,$ALPHA_X+$i,$ALPHA_Y+$j,$color);    }    $this->TRUE_COLOR=$this->PICTURE_CREATE;   }  } } /* 圖片旋轉: 沿y軸旋轉 */ function turn_y(){  $this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  for ($x = 0; $x < $this->PICTURE_WIDTH; $x++)  {   imagecopy($this->TRUE_COLOR, $this->PICTURE_CREATE, $this->PICTURE_WIDTH - $x - 1, 0, $x, 0, 1, $this->PICTURE_HEIGHT);  } } /* 沿X軸旋轉 */ function turn_x(){  $this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  for ($y = 0; $y < $this->PICTURE_HEIGHT; $y++)  {   imagecopy($this->TRUE_COLOR, $this->PICTURE_CREATE, 0, $this->PICTURE_HEIGHT - $y - 1, 0, $y, $this->PICTURE_WIDTH, 1);  } } /* 任意角度旋轉 */ function turn(){  $this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  imageCopyResized($this->TRUE_COLOR,$this->PICTURE_CREATE,0,0,0,0,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  $WHITE=imagecolorallocate($this->TRUE_COLOR,255,255,255);  $this->TRUE_COLOR=imagerotate ($this->TRUE_COLOR, $this->CIRCUMROTATE, $WHITE); } /* 圖片銳利化 */ function sharp(){  $this->TRUE_COLOR=imagecreatetruecolor($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  $cnt=0;  for  ($x=0;  $x<$this->PICTURE_WIDTH;  $x++){   for  ($y=0;  $y<$this->PICTURE_HEIGHT;  $y++)   {    $src_clr1  =  imagecolorsforindex($this->TRUE_COLOR,  imagecolorat($this->PICTURE_CREATE,  $x-1,  $y-1));    $src_clr2  =  imagecolorsforindex($this->TRUE_COLOR,  imagecolorat($this->PICTURE_CREATE,  $x,  $y));    $r  =  intval($src_clr2["red"]+$this->SHARP*($src_clr2["red"]-$src_clr1["red"]));    $g  =  intval($src_clr2["green"]+$this->SHARP*($src_clr2["green"]-$src_clr1["green"]));    $b  =  intval($src_clr2["blue"]+$this->SHARP*($src_clr2["blue"]-$src_clr1["blue"]));    $r  =  min(255,  max($r,  0));    $g  =  min(255,  max($g,  0));    $b  =  min(255,  max($b,  0));    if  (($DST_CLR=imagecolorexact($this->PICTURE_CREATE,  $r,  $g,  $b))==-1)    $DST_CLR  =  imagecolorallocate($this->PICTURE_CREATE,  $r,  $g,  $b);    $cnt++;    if  ($DST_CLR==-1)  die("color  allocate  faile  at  $x,  $y  ($cnt).");    imagesetpixel($this->TRUE_COLOR,  $x,  $y,  $DST_CLR);   }  } } /*   將圖片反色處理?? */ function return_color(){  /*    建立一個畫布  */  $NEW_PICTURE_CREATE=imagecreate($this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  $WHITE=imagecolorallocate($NEW_PICTURE_CREATE,255,255,255);  /*    將背景圖拷貝到畫布中  */  imagecopy($NEW_PICTURE_CREATE, $this->PICTURE_CREATE, 0, 0, 0, 0,$this->PICTURE_WIDTH,$this->PICTURE_HEIGHT);  $this->TRUE_COLOR=$NEW_PICTURE_CREATE; } /* 產生靶心圖表片並顯示 */ function show(){  // 判斷瀏覽器,若是IE就不發送頭  if(isset($_SERVER['HTTP_USER_AGENT']))  {   $ua = strtoupper($_SERVER['HTTP_USER_AGENT']);   if(!preg_match('/^.*MSIE.*\)$/i',$ua))   {    header("Content-type:$this->PICTURE_MIME");   }  }  $OUT=$this->PICTURE_TYPE;  $OUT($this->TRUE_COLOR); } /* 產生靶心圖表片並儲存 */ function save_picture(){  // 以 JPEG 格式將映像輸出到瀏覽器或檔案  $OUT=$this->PICTURE_TYPE;  if(function_exists($OUT)){   // 判斷瀏覽器,若是IE就不發送頭   if(isset($_SERVER['HTTP_USER_AGENT']))   {    $ua = strtoupper($_SERVER['HTTP_USER_AGENT']);    if(!preg_match('/^.*MSIE.*\)$/i',$ua))    {     header("Content-type:$this->PICTURE_MIME");    }   }   if(!$this->TRUE_COLOR){    exit($this->ERROR['unavilable']);   }else{    $OUT($this->TRUE_COLOR,$this->DEST_URL);    $OUT($this->TRUE_COLOR);   }  } } /* 解構函式：釋放圖片 */ function __destruct(){  /*釋放圖片*/  imagedestroy($this->TRUE_COLOR);  imagedestroy($this->PICTURE_CREATE); } #end of class}?>