net.ymate.platform.commons.util

Class ImageUtils

java.lang.Object

net.ymate.platform.commons.util.ImageUtils

public class ImageUtils
extends Object

Since:

2.1.0

Author:

刘镇 (suninformation@163.com) on 2021/11/21 12:58 下午

Constructor Summary

Constructors

Constructor and Description
ImageUtils()

Method Summary

Modifier and Type	Method and Description
static String	dHash(BufferedImage srcImage)
static long	hammingDistance(String dHash1, String dHash2) 计算海明距离（即相似度差异值，一般值小于5为同一张图片）
static BufferedImage	replaceQrCode(BufferedImage originImage, BufferedImage qrImage)
static BufferedImage	replaceQrCode(BufferedImage originImage, BufferedImage qrImage, int deviate) 替换原图片里面的二维码
static boolean	resize(BufferedImage source, File dist, float scale, float quality)
static boolean	resize(BufferedImage source, File dist, int width, int height, float quality) 重置图片大小并将重置后的文件写入目标文件
static net.coobird.thumbnailator.Thumbnails.Builder<BufferedImage>	resize(BufferedImage source, float scale, float quality)
static net.coobird.thumbnailator.Thumbnails.Builder<BufferedImage>	resize(BufferedImage source, float scale, float quality, String format)
static net.coobird.thumbnailator.Thumbnails.Builder<BufferedImage>	resize(BufferedImage source, int width, int height, float quality)
static net.coobird.thumbnailator.Thumbnails.Builder<BufferedImage>	resize(BufferedImage source, int width, int height, float quality, String format) 重置图片大小

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageUtils

public ImageUtils()

Method Detail

replaceQrCode

public static BufferedImage replaceQrCode(BufferedImage originImage,
                                          BufferedImage qrImage,
                                          int deviate)
                                   throws com.google.zxing.NotFoundException

替换原图片里面的二维码

Parameters:

originImage - 原图

qrImage - 要替换的二维码

deviate - 定位点与起始点的差值

Returns:

替换后的图片

Throws:

com.google.zxing.NotFoundException - 识别二维码失败

replaceQrCode

public static BufferedImage replaceQrCode(BufferedImage originImage,
                                          BufferedImage qrImage)
                                   throws com.google.zxing.NotFoundException

Throws:

com.google.zxing.NotFoundException

hammingDistance

public static long hammingDistance(String dHash1,
                                   String dHash2)

计算海明距离（即相似度差异值，一般值小于5为同一张图片）

Parameters:

dHash1 - dHash值1

dHash2 - dHash值2

Returns:

返回海明距离值

dHash

public static String dHash(BufferedImage srcImage)

Parameters:

srcImage - 源图片

Returns:

计算图片文件dHash值

resize

public static net.coobird.thumbnailator.Thumbnails.Builder<BufferedImage> resize(BufferedImage source,
                                                                                 int width,
                                                                                 int height,
                                                                                 float quality,
                                                                                 String format)

重置图片大小

Parameters:

source - 源图片

width - 宽度

height - 高度

quality - 质量

format - 输出文件格式

Returns:

返回Thumbnails.Builder对象实例

resize

public static net.coobird.thumbnailator.Thumbnails.Builder<BufferedImage> resize(BufferedImage source,
                                                                                 int width,
                                                                                 int height,
                                                                                 float quality)

resize

public static boolean resize(BufferedImage source,
                             File dist,
                             int width,
                             int height,
                             float quality)

重置图片大小并将重置后的文件写入目标文件

Parameters:

source - 源图片

dist - 目标文件

width - 宽度

height - 高度

quality - 质量

Returns:

返回true表示重置成功

resize

public static net.coobird.thumbnailator.Thumbnails.Builder<BufferedImage> resize(BufferedImage source,
                                                                                 float scale,
                                                                                 float quality,
                                                                                 String format)

resize

public static net.coobird.thumbnailator.Thumbnails.Builder<BufferedImage> resize(BufferedImage source,
                                                                                 float scale,
                                                                                 float quality)

resize

public static boolean resize(BufferedImage source,
                             File dist,
                             float scale,
                             float quality)