<?php
/*
图片处理类:缩略,裁剪,圆角,倾斜
*/
class resizeimage
{
//图片类型
var $type;
//实际宽度
var $width;
//实际高度
var $height;
//改变后的宽度
var $resize_width;
//改变后的高度
var $resize_height;
//是否裁图
var $cut;
//源图象
var $srcimg;
//目标图象地址
var $dstimg;
//圆角源
var $corner;
var $im;
function resizeimage($img, $corner, $wid, $hei,$c, $corner_radius, $angle)
{
$this->srcimg = $img;
$this->corner = $corner;
$this->resize_width = $wid;
$this->resize_height = $hei;
$this->cut = $c;
$this->corner_radius = $corner_radius;
$this->angle = $angle;
//图片的类型
$this->type = substr(strrchr($this->srcimg,"."),1);
//初始化图象
$this->initi_img();
//目标图象地址
$this -> dst_img();
//--
$this->width = imagesx($this->im);
$this->height = imagesy($this->im);
//生成图象
$this->newimg();
ImageDestroy ($this->im);
}
function newimg()
{
//改变后的图象的比例
$resize_ratio = ($this->resize_width)/($this->resize_height);
//实际图象的比例
$ratio = ($this->width)/($this->height);
if(($this->cut)=="1")
//裁图
{
if($ratio>=$resize_ratio)
//高度优先
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width,$this->resize_height, (($this->height)*$resize_ratio), $this->height);
$tmp = $this->rounded_corner($newimg,$this->resize_width);
imagepng ($tmp,$this->dstimg);
}
if($ratio<$resize_ratio)
//宽度优先
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, $this->width, (($this->width)/$resize_ratio));
$tmp = $this->rounded_corner($newimg);
imagepng ($tmp,$this->dstimg);
}
}
else
//不裁图
{
if($ratio>=$resize_ratio)
{
$newimg = imagecreatetruecolor($this->resize_width,($this->resize_width)/$ratio);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, ($this->resize_width)/$ratio, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
if($ratio<$resize_ratio)
{
$newimg = imagecreatetruecolor(($this->resize_height)*$ratio,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, ($this->resize_height)*$ratio, $this->resize_height, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
}
}
//初始化图象
function initi_img()
{
if($this->type=="jpg")
{
$this->im = imagecreatefromjpeg($this->srcimg);
}
if($this->type=="gif")
{
$this->im = imagecreatefromgif($this->srcimg);
}
if($this->type=="png")
{
$this->im = imagecreatefrompng($this->srcimg);
}
}
//处理圆角
function rounded_corner($image,$size)
{
$this->angle = 0;
$topleft = true;
$bottomleft = true;
$bottomright = true;
$topright = true;
$corner_source = imagecreatefrompng('rounded_corner.png');
$corner_width = imagesx($corner_source);
$corner_height = imagesy($corner_source);
$corner_resized = ImageCreateTrueColor($this->corner_radius, $this->corner_radius);
ImageCopyResampled($corner_resized, $corner_source, 0, 0, 0, 0, $this->corner_radius, $this->corner_radius, $corner_width, $corner_height);
$corner_width = imagesx($corner_resized);
$corner_height = imagesy($corner_resized);
$white = ImageColorAllocate($image,255,255,255);
$black = ImageColorAllocate($image,0,0,0);
//顶部左圆角
if ($topleft == true) {
$dest_x = 0;
$dest_y = 0;
imagecolortransparent($corner_resized, $black);
imagecopymerge($image, $corner_resized, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//下部左圆角
if ($bottomleft == true) {
$dest_x = 0;
$dest_y = $size - $corner_height;
$rotated = imagerotate($corner_resized, 90, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//下部右圆角
if ($bottomright == true) {
$dest_x = $size - $corner_width;
$dest_y = $size - $corner_height;
$rotated = imagerotate($corner_resized, 180, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//顶部右圆角
if ($topright == true) {
$dest_x = $size - $corner_width;
$dest_y = 0;
$rotated = imagerotate($corner_resized, 270, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
$image = imagerotate($image, $this->angle, $white);
return $image;
}
//图象目标地址
function dst_img()
{
$full_length = strlen($this->srcimg);
$type_length = strlen($this->type);
$name_length = $full_length-$type_length;
$name = substr($this->srcimg,0,$name_length-1);
$this->dstimg = $name."_small.png";
}
}
//resizeimage("图片地址", "处理后的宽度", "处理后的高度", "是否裁剪", "圆角度数", "倾斜度");
$img_file = 'Sunset.jpg';
$corner = 'rounded_corner.png';
$resizeimage = new resizeimage($img_file, $corner, "80", "80", "1", "6", "0");
?>
<img src="small.png" border="0">
/*
图片处理类:缩略,裁剪,圆角,倾斜
*/
class resizeimage
{
//图片类型
var $type;
//实际宽度
var $width;
//实际高度
var $height;
//改变后的宽度
var $resize_width;
//改变后的高度
var $resize_height;
//是否裁图
var $cut;
//源图象
var $srcimg;
//目标图象地址
var $dstimg;
//圆角源
var $corner;
var $im;
function resizeimage($img, $corner, $wid, $hei,$c, $corner_radius, $angle)
{
$this->srcimg = $img;
$this->corner = $corner;
$this->resize_width = $wid;
$this->resize_height = $hei;
$this->cut = $c;
$this->corner_radius = $corner_radius;
$this->angle = $angle;
//图片的类型
$this->type = substr(strrchr($this->srcimg,"."),1);
//初始化图象
$this->initi_img();
//目标图象地址
$this -> dst_img();
//--
$this->width = imagesx($this->im);
$this->height = imagesy($this->im);
//生成图象
$this->newimg();
ImageDestroy ($this->im);
}
function newimg()
{
//改变后的图象的比例
$resize_ratio = ($this->resize_width)/($this->resize_height);
//实际图象的比例
$ratio = ($this->width)/($this->height);
if(($this->cut)=="1")
//裁图
{
if($ratio>=$resize_ratio)
//高度优先
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width,$this->resize_height, (($this->height)*$resize_ratio), $this->height);
$tmp = $this->rounded_corner($newimg,$this->resize_width);
imagepng ($tmp,$this->dstimg);
}
if($ratio<$resize_ratio)
//宽度优先
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, $this->width, (($this->width)/$resize_ratio));
$tmp = $this->rounded_corner($newimg);
imagepng ($tmp,$this->dstimg);
}
}
else
//不裁图
{
if($ratio>=$resize_ratio)
{
$newimg = imagecreatetruecolor($this->resize_width,($this->resize_width)/$ratio);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, ($this->resize_width)/$ratio, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
if($ratio<$resize_ratio)
{
$newimg = imagecreatetruecolor(($this->resize_height)*$ratio,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, ($this->resize_height)*$ratio, $this->resize_height, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
}
}
//初始化图象
function initi_img()
{
if($this->type=="jpg")
{
$this->im = imagecreatefromjpeg($this->srcimg);
}
if($this->type=="gif")
{
$this->im = imagecreatefromgif($this->srcimg);
}
if($this->type=="png")
{
$this->im = imagecreatefrompng($this->srcimg);
}
}
//处理圆角
function rounded_corner($image,$size)
{
$this->angle = 0;
$topleft = true;
$bottomleft = true;
$bottomright = true;
$topright = true;
$corner_source = imagecreatefrompng('rounded_corner.png');
$corner_width = imagesx($corner_source);
$corner_height = imagesy($corner_source);
$corner_resized = ImageCreateTrueColor($this->corner_radius, $this->corner_radius);
ImageCopyResampled($corner_resized, $corner_source, 0, 0, 0, 0, $this->corner_radius, $this->corner_radius, $corner_width, $corner_height);
$corner_width = imagesx($corner_resized);
$corner_height = imagesy($corner_resized);
$white = ImageColorAllocate($image,255,255,255);
$black = ImageColorAllocate($image,0,0,0);
//顶部左圆角
if ($topleft == true) {
$dest_x = 0;
$dest_y = 0;
imagecolortransparent($corner_resized, $black);
imagecopymerge($image, $corner_resized, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//下部左圆角
if ($bottomleft == true) {
$dest_x = 0;
$dest_y = $size - $corner_height;
$rotated = imagerotate($corner_resized, 90, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//下部右圆角
if ($bottomright == true) {
$dest_x = $size - $corner_width;
$dest_y = $size - $corner_height;
$rotated = imagerotate($corner_resized, 180, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//顶部右圆角
if ($topright == true) {
$dest_x = $size - $corner_width;
$dest_y = 0;
$rotated = imagerotate($corner_resized, 270, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
$image = imagerotate($image, $this->angle, $white);
return $image;
}
//图象目标地址
function dst_img()
{
$full_length = strlen($this->srcimg);
$type_length = strlen($this->type);
$name_length = $full_length-$type_length;
$name = substr($this->srcimg,0,$name_length-1);
$this->dstimg = $name."_small.png";
}
}
//resizeimage("图片地址", "处理后的宽度", "处理后的高度", "是否裁剪", "圆角度数", "倾斜度");
$img_file = 'Sunset.jpg';
$corner = 'rounded_corner.png';
$resizeimage = new resizeimage($img_file, $corner, "80", "80", "1", "6", "0");
?>
<img src="small.png" border="0">
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$resizeimage->resizeimage("图片地址", "处理后的宽度", "处理后的高度", "是否裁剪", "圆角度数", "倾斜度");
function resizeimage($img, $corner, $wid, $hei,$c, $corner_radius, $angle){}
class RoundedCorner {
private $_r;
private $_g;
private $_b;
private $_image_path;
private $_radius;
function __construct($image_path, $radius, $r = 255, $g = 0, $b = 0) {
$this->_image_path = $image_path;
$this->_radius = $radius;
$this->_r = (int)$r;
$this->_g = (int)$g;
$this->_b = (int)$b;
}
private function _get_lt_rounder_corner() {
$radius = $this->_radius;
$img = imagecreatetruecolor($radius, $radius);
$bgcolor = imagecolorallocate($img, $this->_r, $this->_g, $this->_b);
$fgcolor = imagecolorallocate($img, 0, 0, 0);
imagefill($img, 0, 0, $bgcolor);
imagefilledarc($img, $radius, $radius, $radius*2, $radius*2, 180, 270, $fgcolor, IMG_ARC_PIE);
imagecolortransparent($img, $fgcolor);
return $img;
}
private function _load_source_image() {
$ext = substr($this->_image_path, strrpos($this->_image_path, '.'));
if (empty($ext)) {
return false;
}
switch(strtolower($ext)) {
case '.jpg':
$img = @imagecreatefromjpeg($this->_image_path);
break;
case '.gif':
$img = @imagecreatefromgif($this->_image_path);
break;
case '.png':
$img = @imagecreatefrompng($this->_image_path);
break;
default:
return false;
}
return $img;
}
public function round_it() {
// load the source image
$src_image = $this->_load_source_image();
if ($src_image === false) {
die('图片没有上传成功!');
}
$image_width = imagesx($src_image);
$image_height = imagesy($src_image);
// create a new image, with src_width, src_height, and fill it with transparent color
$image = imagecreatetruecolor($image_width, $image_height);
$trans_color = imagecolorallocate($image, $this->_r, $this->_g, $this->_b);
imagefill($image, 0, 0, $trans_color);
// then overwirte the source image to the new created image
imagecopymerge($image, $src_image, 0, 0, 0, 0, $image_width, $image_height, 100);
// then just copy all the rounded corner images to the 4 corners
$radius = $this->_radius;
// lt
$lt_corner = $this->_get_lt_rounder_corner();
imagecopymerge($image, $lt_corner, 0, 0, 0, 0, $radius, $radius, 100);
// lb
$lb_corner = imagerotate($lt_corner, 90, $trans_color);
imagecopymerge($image, $lb_corner, 0, $image_height - $radius, 0, 0, $radius, $radius, 100);
// rb
$rb_corner = imagerotate($lt_corner, 180, $trans_color);
imagecopymerge($image, $rb_corner, $image_width - $radius, $image_height - $radius, 0, 0, $radius, $radius, 100);
// rt
$rt_corner = imagerotate($lt_corner, 270, $trans_color);
imagecopymerge($image, $rt_corner, $image_width - $radius, 0, 0, 0, $radius, $radius, 100);
// set the transparency
imagecolortransparent($image, $trans_color);
// display it
//header('Content-Type: image/png');
imagepng ($image,"images_png/images_png.png");
imagedestroy($src_image);
imagedestroy($image);
imagedestroy($lt_corner);
imagedestroy($lb_corner);
imagedestroy($rb_corner);
imagedestroy($rt_corner);
}
}
$rounder = new RoundedCorner('33.jpg',60);
$rounder->round_it();
?>images_png.png这个图片有锯齿。
原图片33.jpg的尺寸是150*150的。