Python 检测运动模糊 源代码

目录

模拟运动模糊：

[Python 检测运动模糊 源代码](#Python 检测运动模糊 源代码)

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模拟运动模糊：

https://blog.csdn.net/jacke121/article/details/109191473

Python 检测运动模糊 源代码

import cv2
import numpy as np

def detect_motion_blur(img, blur_threshold=100, direction_threshold=0.8):
    gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
    gray = cv2.GaussianBlur(gray, (3,3), 0)

    # Sobel 边缘
    gx = cv2.Sobel(gray, cv2.CV_64F, 1, 0, ksize=3)
    gy = cv2.Sobel(gray, cv2.CV_64F, 0, 1, ksize=3)

    magnitude = np.sqrt(gx**2 + gy**2)
    angle = np.arctan2(gy, gx)

    # 模糊程度
    blur_score = cv2.Laplacian(gray, cv2.CV_64F).var()

    # 梯度方向分布统计
    hist, _ = np.histogram(angle, bins=36, range=(-np.pi, np.pi))
    hist = hist / np.sum(hist)

    # 如果梯度方向过于集中（说明只有一个方向清晰）
    concentration = np.max(hist)

    if blur_score < blur_threshold:
        if concentration > direction_threshold:
            return "运动模糊", blur_score, concentration
        else:
            return "普通模糊", blur_score, concentration
    else:
        return "清晰", blur_score, concentration