IT工程師數位筆記本

1 //實例化圖像處理類，默認為GD庫
2 $image =  new Image();

1 //采用Imageick擴展庫，默認沒安裝
2 $image =  new Image(Image:: IMAGE_IMAGICK );
3 $image =  new Image('Imagick');

1 //實例化圖象處理類庫
2 $image =  new Image();
3 //加載一張預處理的圖片
4 $image->open('./Public/1.jpg');

1 //上面兩句，可以用一句話包含
2 $image =  new Image(Image:: IMAGE_GD , './Public/1.jpg');

//獲取圖片信息
$arr['width']=$image->width();
$arr['height']=$image->height();
$arr['type']=$image->type();
$arr['mime']=$image->mime();
$arr['size']=$image->size();
var_dump($arr);

1 //裁剪圖片，高400，寬400
2 $image->crop(400,400)->save('./Public/2.jpg');

1 //裁剪圖片，坐標100,100開始裁剪
2 $image->crop(400,400,100,100)->save('./Public/2.jpg');

1 //裁剪圖片，生成后的圖片壓縮成高寬200
2 $image->crop(400,400,100,100,200,200)->save('./Public/2.jpg');

1 //生成縮略圖
2 $image->thumb(300,300)->save('./Public/2.jpg');

1 IMAGE_THUMB_SCALE = 1 ; //等比例縮放類型
2 IMAGE_THUMB_FILLED = 2 ; //縮放后填充類型
3 IMAGE_THUMB_CENTER = 3 ; //居中裁剪類型
4 IMAGE_THUMB_NORTHWEST = 4 ; //左上角裁剪類型
5 IMAGE_THUMB_SOUTHEAST = 5 ; //右下角裁剪類型
6 IMAGE_THUMB_FIXED = 6 ; //固定尺寸縮放類型

1 //生成縮略圖，以中心點截取，直接傳3也可以
2 $image->thumb(300,300,Image::IMAGE_THUMB_CENTER)->save('./public/2.jpg');

1 $image->thumb(300,300,3)->save('./public/2.jpg');

1 //在圖片右下角添加水印并生成
2 $image->water('./Public/logo.png')->save('./Public/2.jpg');

1 IMAGE_WATER_NORTHWEST = 1 ; //左上角水印
2 IMAGE_WATER_NORTH = 2 ; //上居中水印
3 IMAGE_WATER_NORTHEAST = 3 ; //右上角水印
4 IMAGE_WATER_WEST = 4 ; //左居中水印
5 IMAGE_WATER_CENTER = 5 ; //居中水印
6 IMAGE_WATER_EAST = 6 ; //右居中水印
7 IMAGE_WATER_SOUTHWEST = 7 ; //左下角水印
8 IMAGE_WATER_SOUTH = 8 ; //下居中水印
9 IMAGE_WATER_SOUTHEAST = 9 ; //右下角水印

1 //更改水印到左上角
2 $image->water('./public/logo.jpg',image::IMAGE_WATER_NORTHWEST)->save('./public/2.jpg');

1 //設置水印的透明度，默認為80，1-100之間
2 $image->water('./public/logo.jpg',1,30)->save('./public/2.jpg');

1 //設置文本水印
2 $image->text('This is ThinkPHP','./public/javatext.ttf',20,'#ffffff',image::IMAGE_WATER_NORTHWEST)->save('./public/2.jpg');