/*
以下為圖片處理類
*/
<?php
/*
圖片處理函數(shù)功能：縮放、剪切、相框、水印、銳化、旋轉(zhuǎn)、翻轉(zhuǎn)、透明度、反色
處理并保存歷史記錄的思路：當(dāng)有圖片有改動(dòng)時(shí)自動(dòng)生成一張新圖片，命名方式可以考慮在原圖片的基礎(chǔ)上加上步驟，例如：圖片名稱+__第幾步
*/
class picture {
var $PICTURE_URL;
//要處理的圖片
var $DEST_URL = "temp__01.jpg";
//生成目標(biāo)圖片位置
var $PICTURE_CREATE;
//要?jiǎng)?chuàng)建的圖片
var $TURE_COLOR;
//新建一個(gè)真彩圖象
var $PICTURE_WIDTH;
//原圖片寬度
var $PICTURE_HEIGHT;
//原圖片高度
/*
水印的類型，默認(rèn)的為水印文字
*/
var $MARK_TYPE = 1;
var $WORD;
//經(jīng)過UTF-8后的文字
var $WORD_X;
//文字橫坐標(biāo)
var $WORD_Y;
//文字縱坐標(biāo)
var $FONT_TYPE;
//字體類型
var $FONT_SIZE = "12";
//字體大小
var $FONT_WORD;
//文字
var $ANGLE = 0;
//文字的角度，默認(rèn)為0
var $FONT_COLOR = "#ffffff";
//文字顏色
var $FONT_PATH = "22.ttf";
//字體庫(kù)，默認(rèn)為宋體
var $FORCE_URL;
//水印圖片
var $FORCE_X = 0;
//水印橫坐標(biāo)
var $FORCE_Y = 0;
//水印縱坐標(biāo)
var $FORCE_START_X = 0;
//切起水印的圖片橫坐標(biāo)
var $FORCE_START_Y = 0;
//切起水印的圖片縱坐標(biāo)
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(zhǎng)度、寬度
*/
var $CUT_TYPE = 1;
//裁切類型
var $CUT_X = 0;
//裁切的橫坐標(biāo)
var $CUT_Y = 0;
//裁切的縱坐標(biāo)
var $CUT_WIDTH = 100;
//裁切的寬度
var $CUT_HEIGHT = 100;
//裁切的高度
/*
銳化
*/
var $SHARP = "5.0";
//銳化程度
/*
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(zhuǎn)
*/
var $CIRCUMROTATE = "90.0";
//注意，必須為浮點(diǎn)數(shù)
/*
出錯(cuò)信息
*/
var $ERROR = array('unalviable' => '沒有找到相關(guān)圖片!');
/*
構(gòu)造函數(shù)：函數(shù)初始化
*/
function __construct($PICTURE_URL) {
$this -> get_info($PICTURE_URL);
}
function get_info($PICTURE_URL) {
/*
處理原圖片的信息,先檢測(cè)圖片是否存在,不存在則給出相應(yīng)的信息
*/
@$SIZE = getimagesize($PICTURE_URL);
if (!$SIZE) {
exit($this -> ERROR['unalviable']);
}
//得到原圖片的信息類型、寬度、高度
$this -> PICTURE_MIME = $SIZE['mime'];
$this -> PICTURE_WIDTH = $SIZE[0];
$this -> PICTURE_HEIGHT = $SIZE[1];
//Returns a array with 4 elements.
//The 0 index is the width of the image in pixels.
//The 1 index is the height of the image in pixels.
//The 2 index is a flag for the image type:
//1 = GIF, 2 = JPG, 3 = PNG, 4 = SWF, 5 = PSD, 6 = BMP, 7 = TIFF(orden de bytes intel), 8 = TIFF(orden de bytes motorola), 9 = JPC, 10 = JP2, 11 = JPX, 12 = JB2, 13 = SWC, 14 = IFF, 15 = WBMP, 16 = XBM.
//The 3 index contains ' height="yyy" width="xxx"
//創(chuàng)建圖片
switch($SIZE[2]) {
case 1 :
$this -> PICTURE_CREATE = imagecreatefromgif($PICTURE_URL);
$this -> PICTURE_TYPE = "imagegif";
$this -> PICTURE_EXT = "gif";
break;
case 2 :
$this -> PICTURE_CREATE = imagecreatefromjpeg($PICTURE_URL);
$this -> PICTURE_TYPE = "imagejpeg";
$this -> PICTURE_EXT = "jpg";
break;
case 3 :
$this -> PICTURE_CREATE = imagecreatefrompng($PICTURE_URL);
$this -> PICTURE_TYPE = "imagepng";
$this -> PICTURE_EXT = "png";
break;
default :
//imagecreatefrom
break;
}
/*
文字顏色轉(zhuǎn)換16進(jìn)制轉(zhuǎn)換成10進(jìn)制
*/
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(jìn)制的顏色轉(zhuǎn)換成10進(jìn)制的（R，G，B）
*/
function hex2dec() {
preg_match_all("/([0-f]{2,2})/i", $this -> FONT_COLOR, $MATCHES);
if (count($MATCHES[0]) == 3) {
$this -> RED = hexdec($MATCHES[0][0]);
$this -> GREEN = hexdec($MATCHES[0][1]);
$this -> BLUE = hexdec($MATCHES[0][2]);
} else {
exit('錯(cuò)誤的顏色格式');
}
}
//縮放類型
function zoom_type($ZOOM_TYPE) {
$this -> ZOOM = $ZOOM_TYPE;
}
//對(duì)圖片進(jìn)行縮放,如果不指定高度和寬度就進(jìn)行縮放
function zoom() {
//縮放的大小
if ($this -> ZOOM == 0) {
$this -> ZOOM_WIDTH = $this -> PICTURE_WIDTH * $this -> ZOOM_MULTIPLE;
$this -> ZOOM_HEIGHT = $this -> PICTURE_HEIGHT * $this -> ZOOM_MULTIPLE;
}
//新建一個(gè)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, $this -> PICTURE_HEIGHT);
}
#end of zoom
//裁切圖片,按坐標(biāo)或自動(dòng)
function cut($zoom = 0) {
$this -> TRUE_COLOR = imagecreatetruecolor($this -> CUT_WIDTH, $this -> CUT_WIDTH);
if (!$zoom) {
imagecopy($this -> TRUE_COLOR, $this -> PICTURE_CREATE, 0, 0, $this -> CUT_X, $this -> CUT_Y, $this -> CUT_WIDTH, $this -> CUT_HEIGHT);
} else {
$w = $this -> PICTURE_WIDTH;
$h = $this -> PICTURE_HEIGHT;
if (min($w, $h, $this -> CUT_WIDTH, $this -> CUT_HEIGHT) == 0)
exit('裁剪尺寸為零，或者獲取圖片尺寸');
$bl = $this -> CUT_WIDTH / $this -> CUT_HEIGHT;
$bl1 = $w / $h;
if ($bl > $bl1) {
$h = floor($w * $bl);
} elseif ($bl < $bl1) {
$w = floor($h / $bl);
}
imagecopyresampled($this -> TRUE_COLOR, $this -> PICTURE_CREATE, 0, 0, $this -> CUT_X, $this -> CUT_Y, $this -> CUT_WIDTH, $this -> CUT_HEIGHT, $w, $h);
}
}
#end of cut
/*
在圖片上放文字或圖片
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');
$this -> WORD = iconv('gb2312', 'utf-8', $this -> FONT_WORD);
//$this->WORD=$this->FONT_WORD;
/*
取得使用 TrueType 字體的文本的范圍
*/
$TEMP = imagettfbbox($this -> FONT_SIZE, 0, $this -> FONT_PATH, $this -> WORD);
$WORD_LENGTH = strlen($this -> WORD);
$WORD_WIDTH = $TEMP[2] - $TEMP[6];
$WORD_HEIGHT = $TEMP[3] - $TEMP[7];
/*
文字水印的默認(rèn)位置為右下角
*/
if ($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, $this -> WORD);
}
/*
水印圖片
*/
function _mark_picture() {
/*
獲取水印圖片的信息
*/
@$SIZE = getimagesize($this -> FORCE_URL);
if (!$SIZE) {
exit($this -> ERROR['unalviable']);
}
$FORCE_PICTURE_WIDTH = $SIZE[0];
$FORCE_PICTURE_HEIGHT = $SIZE[1];
//創(chuàng)建水印圖片
switch($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;
}
/*
判斷水印圖片的大小，并生成目標(biāo)圖片的大小，如果水印比圖片大，則生成圖片大小為水印圖片的大小。否則生成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;
}
/*
創(chuàng)建一個(gè)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, $this -> PICTURE_HEIGHT);
/*
將目標(biāo)圖片拷貝到背景圖片上
*/
imagecopy($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(zhuǎn):
沿y軸旋轉(zhuǎn)
*/
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);
}
}
function turn_r1() {
$this -> TRUE_COLOR = imagecreatetruecolor($this -> PICTURE_HEIGHT, $this -> PICTURE_WIDTH);
//exit("==".$this->PICTURE_WIDTH);
for ($x = 0; $x < $this -> PICTURE_WIDTH; $x += 1) {
for ($y = 0; $y < $this -> PICTURE_HEIGHT; $y += 1) {
imagecopy($this -> TRUE_COLOR, $this -> PICTURE_CREATE, $y, $x, $this -> PICTURE_WIDTH - $x, $this -> PICTURE_HEIGHT - $y, 1, 1);
}
}
}
function turn_r2() {
$this -> TRUE_COLOR = imagecreatetruecolor($this -> PICTURE_HEIGHT, $this -> PICTURE_WIDTH);
//exit("==".$this->PICTURE_WIDTH);
for ($x = 0; $x < $this -> PICTURE_WIDTH; $x += 1) {
for ($y = $this -> PICTURE_HEIGHT; $y > 0; $y -= 1) {
imagecopy($this -> TRUE_COLOR, $this -> PICTURE_CREATE, $y, $x, $x, $y, 1, 1);
}
}
}
/*
沿X軸旋轉(zhuǎn)
*/
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(zhuǎn)
*/
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() {
/*
創(chuàng)建一個(gè)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 = $NEW_PICTURE_CREATE;
}
/*
生成目標(biāo)圖片并顯示
*/
function show() {
// 判斷瀏覽器,若是IE就不發(fā)送頭
if (isset($_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);
}
/*
生成目標(biāo)圖片并保存
*/
function save_picture($showpic = 0) {
// 以 JPEG 格式將圖像輸出到瀏覽器或文件
$OUT = $this -> PICTURE_TYPE;
if (function_exists($OUT)) {
// 判斷瀏覽器,若是IE就不發(fā)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, $this -> DEST_URL);
if ($showpic) {
$OUT($this -> TRUE_COLOR);
}
}
}
}
/*
析構(gòu)函數(shù)：釋放圖片
*/
function __destruct() {
/*釋放圖片*/
@imagedestroy($this -> TRUE_COLOR);
@imagedestroy($this -> PICTURE_CREATE);
}
#end of class
}
?>
/*
以下為調(diào)用方法
*/
<?php
require_once "Pic_Class.php";
$p2 = new picture('22.jpg');
/*
$p2->FONT_WORD='我要打水印了，*(^&^%^%$$#,結(jié)束了';
$p2->DEST_URL='fontwater.gif';
$p2->hex2dec();
$p2->_mark_text();
$p2->save_picture();
*/
/*
$p2->FORCE_URL='wt.jpg';
$p2->FORCE_X=0;//水印橫坐標(biāo)
$p2->FORCE_Y=0;//水印縱坐標(biāo)
$p2->FORCE_START_X=0;//切起水印的圖片橫坐標(biāo)
$p2->FORCE_START_Y=0;//切起水印的圖片縱坐標(biāo)
$p2->_mark_picture();
$p2->save_picture(1);
*/
/*
$p2->ZOOM=0;//縮放類型
$p2->ZOOM_MULTIPLE=0.5;//縮放比例
$p2->zoom();
$p2->save_picture(1);
*/
/*
$p2->CUT_TYPE=1;//裁切類型
$p2->CUT_X=0;//裁切的橫坐標(biāo)
$p2->CUT_Y=0;//裁切的縱坐標(biāo)
$p2->CUT_WIDTH=100;//裁切的寬度
$p2->CUT_HEIGHT=100;//裁切的高度
$p2->cut(1);
$p2->save_picture(1);
*/
/*
$p2=new picture('33.jpg');
$p2->sharp();
$p2->save_picture(1);
*/
/*
$p2=new picture('33.jpg');
$p2->ALPHA='10';//透明度在0-127之間
$p2->ALPHA_X="90";
$p2->ALPHA_Y="50";
$p2->alpha_();
$p2->save_picture(1);
*/
$p2 = new picture('22.jpg');
//$p2->turn_y();
//$p2->turn_x();
$p2 -> turn_r1();
$p2 -> save_picture(1);
?>
source from:
http://hi.baidu.com/%B7%E3%CF%E0%D7%D3/blog/item/acd7843c2134900bbba16761.html
posted on 2012-01-29 14:59
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