使用python增强图像中的文本

import cv2
import numpy as np

def enhance_text(image_path):
    # 读取图像
    img = cv2.imread(image_path)
    
    # 转换为灰度图像
    gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
    
    # 应用自适应阈值处理
    thresh = cv2.adaptiveThreshold(gray, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 11, 2)
    
    # 锐化图像
    kernel = np.array([[-1,-1,-1], [-1,9,-1], [-1,-1,-1]])
    sharpened = cv2.filter2D(thresh, -1, kernel)
    
    # 显示结果
    cv2.imshow('Enhanced Text', sharpened)
    cv2.waitKey(0)
    cv2.destroyAllWindows()
    
    return sharpened

# 使用示例
enhanced_image = enhance_text('path_to_your_image.jpg')
cv2.imwrite('enhanced_image.jpg', enhanced_image)