《OpenCV》—— 指纹验证

用两张指纹图片中的其中一张对其验证

完整代码

import cv2


def cv_show(name, img):
    cv2.imshow(name, img)
    cv2.waitKey(0)


def verification(src, model):

    sift = cv2.SIFT_create()

    kp1, des1 = sift.detectAndCompute(src, None)

    kp2, des2 = sift.detectAndCompute(model, None)

    flann = cv2.FlannBasedMatcher()

    matches = flann.knnMatch(des1, des2, k=2)

    ok = []
    for m, n in matches:

        if m.distance < 0.8 * n.distance:
            ok.append(m)

    num = len(ok)
    if num >= 500:
        result = "认证通过"
    else:
        result = "认证失败"
    return result


if __name__ == '__main__':
    src1 = cv2.imread("src1.bmp")
    cv_show('src1', src1)
    src2 = cv2.imread('src2.bmp')
    cv_show('src2', src2)
    model = cv2.imread('model.bmp')
    cv_show('model', model)

    result1 = verification(src1, model)
    result2 = verification(src2, model)
    print("src1验证结果为：", result1)
    print("src2验证结果为：", result2)

运行结果