cn.hutool.extra.qrcode

Class BufferedImageLuminanceSource

java.lang.Object

com.google.zxing.LuminanceSource

cn.hutool.extra.qrcode.BufferedImageLuminanceSource

public final class BufferedImageLuminanceSource
extends com.google.zxing.LuminanceSource

BufferedImage 图片二维码源
来自：http://blog.csdn.net/yangxin_blog/article/details/50850701
此类同样在zxing-j2se包中也有提供

Since:

4.0.2

Author:

zxing, Looly

Constructor Summary

Constructors

Constructor and Description
BufferedImageLuminanceSource(BufferedImage image) 构造
BufferedImageLuminanceSource(BufferedImage image, int left, int top, int width, int height) 构造

Method Summary

Modifier and Type	Method and Description
com.google.zxing.LuminanceSource	crop(int left, int top, int width, int height)
byte[]	getMatrix()
byte[]	getRow(int y, byte[] row)
boolean	isCropSupported()
boolean	isRotateSupported()
com.google.zxing.LuminanceSource	rotateCounterClockwise()

Methods inherited from class com.google.zxing.LuminanceSource

getHeight, getWidth, invert, rotateCounterClockwise45, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferedImageLuminanceSource

public BufferedImageLuminanceSource(BufferedImage image)

构造

Parameters:

image - BufferedImage

BufferedImageLuminanceSource

public BufferedImageLuminanceSource(BufferedImage image,
                                    int left,
                                    int top,
                                    int width,
                                    int height)

构造

Parameters:

image - BufferedImage

left - 左边间隔

top - 顶部间隔

width - 宽度

height - 高度

Method Detail

getRow

public byte[] getRow(int y,
                     byte[] row)

Specified by:

getRow in class com.google.zxing.LuminanceSource

getMatrix

public byte[] getMatrix()

Specified by:

getMatrix in class com.google.zxing.LuminanceSource

isCropSupported

public boolean isCropSupported()

Overrides:

isCropSupported in class com.google.zxing.LuminanceSource

crop

public com.google.zxing.LuminanceSource crop(int left,
                                             int top,
                                             int width,
                                             int height)

Overrides:

crop in class com.google.zxing.LuminanceSource

isRotateSupported

public boolean isRotateSupported()

Overrides:

isRotateSupported in class com.google.zxing.LuminanceSource

rotateCounterClockwise

public com.google.zxing.LuminanceSource rotateCounterClockwise()

Overrides:

rotateCounterClockwise in class com.google.zxing.LuminanceSource