Java实现合同公章真伪鉴别：从原理到实践

import org.opencv.core.*;
import org.opencv.core.Core.*;
import org.opencv.core.CvType.*;
import org.opencv.core.Mat;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.highgui.HighGui;
import org.opencv.imgproc.Imgproc;

public class SealVerification {
    public static void main(String[] args) {
        // 加载OpenCV库
        System.loadLibrary(Core.NATIVE_LIBRARY_NAME);

        // 读取输入图像
        Mat inputImage = Imgcodecs.imread("input_seal.png");
        Mat legalSeal = Imgcodecs.imread("legal_seal.png");

        // 图像处理
        Mat processedImage = preprocessImage(inputImage);

        // 特征提取
        Mat inputFeatures = extractFeatures(processedImage);
        Mat legalFeatures = extractFeatures(legalSeal);

        // 特征比对
        double similarity = compareFeatures(inputFeatures, legalFeatures);

        // 结果判断
        if (similarity > 0.8) {
            System.out.println("合同公章真实有效！");
        } else {
            System.out.println("合同公章可能伪造！");
        }
    }

    // 图像预处理
    private static Mat preprocessImage(Mat image) {
        Mat processedImage = new Mat();
        Imgproc.cvtColor(image, processedImage, Imgproc.COLOR_BGR2GRAY);
        Imgproc.threshold(processedImage, processedImage, 50, 255, Imgproc.THRESH_BINARY);
        return processedImage;
    }

    // 特征提取
    private static Mat extractFeatures(Mat image) {
        // 特征提取算法
        return image;
    }

    // 特征比对
    private static double compareFeatures(Mat feature1, Mat feature2) {
        // 特征比对算法
        return 0.9;
    }
}