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package cn.wisenergy.common.utils;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class ImageUtil {
/**
* JAVA添加文字水印
*
* @param srcImage 目标图片
* @param waterImage 水印图片
* @return
*/
public static byte[] watermarkImageSimple1(BufferedImage srcImage, BufferedImage waterImage) throws IOException {
int bgWidth = srcImage.getWidth(null);
int bgHeight = srcImage.getHeight(null);
BufferedImage image = new BufferedImage(bgWidth, bgHeight, BufferedImage.TYPE_INT_RGB);
Graphics2D g = image.createGraphics();
g.drawImage(srcImage, 0, 0, bgWidth, bgHeight, null);
g.drawImage(waterImage, bgWidth - 150, bgHeight - 150, waterImage.getWidth(), waterImage.getHeight(), null);
g.dispose();
ByteArrayOutputStream out = new ByteArrayOutputStream();
ImageIO.write(image, "jpg", out);
return out.toByteArray();
}
/**
* JAVA添加文字水印
*
* @param srcImage 目标图片
* @param waterImage 水印图片
* @return
*/
public static byte[] watermarkImageSimple(BufferedImage srcImage, BufferedImage waterImage) {
Graphics2D graphics = srcImage.createGraphics();
graphics.drawImage(waterImage, srcImage.getWidth() - 100, 0, waterImage.getWidth(), waterImage.getHeight(), null);
graphics.dispose();
ImageWriter writer = ImageIO.getImageWritersByFormatName("jpg").next();
ImageWriteParam imgWriteParams = new javax.imageio.plugins.jpeg.JPEGImageWriteParam(null);
imgWriteParams.setCompressionMode(ImageWriteParam.MODE_DISABLED);
//imgWriteParams.setCompressionQuality(1.0f);
imgWriteParams.setProgressiveMode(ImageWriteParam.MODE_DISABLED);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
IIOImage iIamge = new IIOImage(waterImage, null, null);
try {
writer.setOutput(ImageIO.createImageOutputStream(baos));
writer.write(null, iIamge, imgWriteParams);
} catch (IOException e) {
e.printStackTrace();
}
return baos.toByteArray();
}
/**
* JAVA添加文字水印
*
* @param srcImage 目标图片
* @param waterImage 水印图片
* @return
*/
public static byte[] watermarkImageSimple(byte[] srcImage, byte[] waterImage) throws IOException {
//使用ImageIO的read方法读取图片
ByteArrayInputStream srcImageStream = new ByteArrayInputStream(srcImage);
BufferedImage read = ImageIO.read(srcImageStream);
ByteArrayInputStream waterImageStream = new ByteArrayInputStream(srcImage);
BufferedImage image = ImageIO.read(waterImageStream);
Graphics2D graphics = read.createGraphics();
graphics.drawImage(image, read.getWidth() - 100, 0, image.getWidth(), image.getHeight(), null);
graphics.dispose();
ImageWriter writer = ImageIO.getImageWritersByFormatName("jpg").next();
ImageWriteParam imgWriteParams = new javax.imageio.plugins.jpeg.JPEGImageWriteParam(null);
imgWriteParams.setCompressionMode(ImageWriteParam.MODE_DISABLED);
//imgWriteParams.setCompressionQuality(1.0f);
imgWriteParams.setProgressiveMode(ImageWriteParam.MODE_DISABLED);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
IIOImage iIamge = new IIOImage(image, null, null);
try {
writer.setOutput(ImageIO.createImageOutputStream(baos));
writer.write(null, iIamge, imgWriteParams);
} catch (IOException e) {
e.printStackTrace();
}
return baos.toByteArray();
}
/**
* JAVA添加文字水印
*
* @param srcImage 目标图片
* @param waterImage 水印图片
* @param x 水印图片距离目标图片左侧的偏移量，如果x<0, 则在正中间
* @param y 水印图片距离目标图片上侧的偏移量，如果y<0, 则在正中间
* @param alpha 透明度(0.0 -- 1.0, 0.0为完全透明，1.0为完全不透明)
* @param degree 水印图片旋转角度
* @return
*/
public static byte[] watermarkImage(byte[] srcImage, byte[] waterImage, int x, int y, float alpha, Integer degree) throws IOException {
//使用ImageIO的read方法读取图片
ByteArrayInputStream srcImageStream = new ByteArrayInputStream(srcImage);
BufferedImage read = ImageIO.read(srcImageStream);
ByteArrayInputStream waterImageStream = new ByteArrayInputStream(srcImage);
BufferedImage image = ImageIO.read(waterImageStream);
//获取画布
Graphics2D graphics = read.createGraphics();
//设置透明度为0.5
graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, 1.0f));
//添加水印
if (x == 0) {
x = read.getWidth() - 100;
}
graphics.drawImage(image, x, 0, image.getWidth(), image.getHeight(), null);
//关闭透明度
//graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
graphics.dispose();
// 开始打包图片，写入byte[] 取得内存输出流 指定写图片的方式为jpg
ImageWriter writer = ImageIO.getImageWritersByFormatName("jpg").next();
ImageWriteParam imgWriteParams = new javax.imageio.plugins.jpeg.JPEGImageWriteParam(null);
// 要使用压缩，必须指定压缩方式为MODE_EXPLICIT
imgWriteParams.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
// 这里指定压缩的程度，参数qality是取值0~1范围内，
imgWriteParams.setCompressionQuality(1.0f);
imgWriteParams.setProgressiveMode(ImageWriteParam.MODE_DISABLED);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
IIOImage iIamge = new IIOImage(image, null, null);
try {
// 此处因为ImageWriter中用来接收write信息的output要求必须是ImageOutput
// 通过ImageIo中的静态方法，得到byteArrayOutputStream的ImageOutput
writer.setOutput(ImageIO.createImageOutputStream(baos));
writer.write(null, iIamge, imgWriteParams);
} catch (IOException e) {
e.printStackTrace();
}
return baos.toByteArray();
}
/**
* @param srcFile 原图路径
* @return
* @throws IOException
*/
public static byte[] compressPic(byte[] srcFile, float quality) throws IOException {
// 指定写图片的方式为 jpg
ImageWriter writer = ImageIO.getImageWritersByFormatName("jpg").next();
ImageWriteParam imgWriteParams = new javax.imageio.plugins.jpeg.JPEGImageWriteParam(null);
// 要使用压缩，必须指定压缩方式为MODE_EXPLICIT
imgWriteParams.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
// 这里指定压缩的程度，参数qality是取值0~1范围内，
imgWriteParams.setCompressionQuality(quality);
imgWriteParams.setProgressiveMode(ImageWriteParam.MODE_DISABLED);
ByteArrayInputStream in = new ByteArrayInputStream(srcFile);
BufferedImage image = ImageIO.read(in);
// ColorModel.getRGBdefault();
ColorModel colorModel = image.getColorModel();
imgWriteParams.setDestinationType(new javax.imageio.ImageTypeSpecifier(colorModel, colorModel.createCompatibleSampleModel(16, 16)));
// 开始打包图片，写入byte[]
// 取得内存输出流
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
IIOImage iIamge = new IIOImage(image, null, null);
try {
// 此处因为ImageWriter中用来接收write信息的output要求必须是ImageOutput
// 通过ImageIo中的静态方法，得到byteArrayOutputStream的ImageOutput
writer.setOutput(ImageIO.createImageOutputStream(byteArrayOutputStream));
writer.write(null, iIamge, imgWriteParams);
} catch (IOException e) {
e.printStackTrace();
}
return byteArrayOutputStream.toByteArray();
}
}