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2025-05-09 6159dc58f50d3e4680779b7989bbd4d49a76bad5

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package com.taoke.autopay;
 
import org.apache.commons.io.FileUtils;
import org.yeshi.utils.FileUtil;
 
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ColorConvertOp;
import java.io.File;
import java.io.IOException;
 
public class PictureTest {
    public static void resizeImage(File inputFile, File outputFile, int targetWidth, int targetHeight) throws IOException {
        // 步骤 1: 读取原始图片
        BufferedImage originalImage = ImageIO.read(inputFile);
 
        // 步骤 2: 创建缩放后的图片
        BufferedImage resizedImage = new BufferedImage(targetWidth, targetHeight, originalImage.getType());
        resizedImage.getGraphics().drawImage(originalImage.getScaledInstance(targetWidth, targetHeight, java.awt.Image.SCALE_SMOOTH), 0, 0, null);
 
        // 或者使用Graphics2D进行更复杂的图像操作（例如保持纵横比）
        // Graphics2D g2d = resizedImage.createGraphics();
        // g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        // g2d.drawImage(originalImage, 0, 0, targetWidth, targetHeight, null);
        // g2d.dispose();
 
        // 步骤 3: 保存压缩后的图片
        ImageIO.write(resizedImage, "jpg", outputFile); // 可以根据需要改为png等格式
    }
 
    public static BufferedImage convertToGrayscale(BufferedImage img) {
        ColorSpace graySpace = ColorSpace.getInstance(ColorSpace.CS_GRAY);
        ColorConvertOp op = new ColorConvertOp(graySpace, null);
        return op.filter(img, null);
    }
 
 
    public static double compareImages(File file1, File file2) throws IOException {
        BufferedImage img1 = ImageIO.read(file1);
        BufferedImage img2 = ImageIO.read(file2);
 
        // 将图片转换为灰度图像
        img1 = convertToGrayscale(img1);
        img2 = convertToGrayscale(img2);
 
        if (img1.getWidth() != img2.getWidth() || img1.getHeight() != img2.getHeight()) {
            return 0; // 如果尺寸不同，直接返回0
        }
 
        int width = img1.getWidth();
        int height = img1.getHeight();
        int totalDiff = 0;
 
        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                int rgb1 = img1.getRGB(x, y);
                int rgb2 = img2.getRGB(x, y);
                int r1 = (rgb1 >> 16) & 0xff;
                int r2 = (rgb2 >> 16) & 0xff;
                totalDiff += Math.abs(r1 - r2);
            }
        }
 
        double maxDiff =  255 * width * height;
        return (maxDiff - totalDiff) / maxDiff;
    }
 
 
    public static void main(String[] args) throws IOException {
        try {
            File file1 = new File("C:\\Users\\Administrator\\Desktop\\132.jfif");
            File file2 = new File("C:\\Users\\Administrator\\Desktop\\132_c.jfif");
 
            double similarity = compareImages(file1, file2);
            System.out.println("图片相似度: " + similarity);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
}