ameba.util

类 Images

java.lang.Object

ameba.util.Images

public class Images
extends Object

Images utils

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	Images.Captcha A captcha image.

构造器概要

构造器

构造器和说明
Images()

方法概要

方法

限定符和类型	方法和说明
static Images.Captcha	captcha() Create a 150x150 captcha image
static Images.Captcha	captcha(int width, int height) Create a captche image
static void	crop(File originalImage, File to, int x1, int y1, int x2, int y2) Crop an image
static void	resize(File originalImage, File to, int w, int h) Resize an image
static void	resize(File originalImage, File to, int w, int h, boolean keepRatio) Resize an image
static String	toBase64(File image) Encode an image to base64 using a data: URI

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

Images

public Images()

方法详细资料

resize

public static void resize(File originalImage,
          File to,
          int w,
          int h)

Resize an image

参数:

originalImage - The image file

to - The destination file

w - The new width (or -1 to proportionally resize)

h - The new height (or -1 to proportionally resize)

resize

public static void resize(File originalImage,
          File to,
          int w,
          int h,
          boolean keepRatio)

Resize an image

参数:

originalImage - The image file

to - The destination file

w - The new width (or -1 to proportionally resize) or the maxWidth if keepRatio is true

h - The new height (or -1 to proportionally resize) or the maxHeight if keepRatio is true

keepRatio - : if true, resize will keep the original image ratio and use w and h as max dimensions

crop

public static void crop(File originalImage,
        File to,
        int x1,
        int y1,
        int x2,
        int y2)

Crop an image

参数:

originalImage - The image file

to - The destination file

x1 - The new x origin

y1 - The new y origin

x2 - The new x end

y2 - The new y end

toBase64

public static String toBase64(File image)
                       throws IOException

Encode an image to base64 using a data: URI

参数:

image - The image file

返回:

The base64 encoded value

抛出:

IOException - IOException

captcha

public static Images.Captcha captcha(int width,
                     int height)

Create a captche image

参数:

width - width

height - height

返回:

Captcha

captcha

public static Images.Captcha captcha()

Create a 150x150 captcha image

返回:

Captcha