优化图片，原图是歪的，请拉直。纯黑色，logo拉平同一水平面

python
from PIL import Image
import numpy as np
import cv2
import matplotlib.pyplot as plt

# Load image
input_path = "/mnt/data/微信图片_2025-08-17_052026_437.png"
image = Image.open(input_path)

# Convert to OpenCV format and grayscale
image_cv = np.array(image)
gray = cv2.cvtColor(image_cv, cv2.COLOR_RGB2GRAY)

# Threshold the image to detect edges
_, thresh = cv2.threshold(gray, 10, 255, cv2.THRESH_BINARY)

# Find contours and the minimum area rectangle
coords = np.column_stack(np.where(thresh > 0))
angle = cv2.minAreaRect(coords)[-1]

# Adjust angle for rotation
if angle < -45:
    angle = -(90 + angle)
else:
    angle = -angle

# Get image center and rotate
(h, w) = image_cv.shape[:2]
center = (w // 2, h // 2)
M = cv2.getRotationMatrix2D(center, angle, 1.0)
rotated = cv2.warpAffine(image_cv, M, (w, h), flags=cv2.INTER_LINEAR, borderMode=cv2.BORDER_CONSTANT, borderValue=(0,0,0))

# Convert back to PIL and save
rotated_image = Image.fromarray(rotated)
output_path = "/mnt/data/微信图片_2025-08-17_052026_437_straightened.png"
rotated_image.save(output_path)

output_path

'/mnt/data/微信图片_2025-08-17_052026_437_straightened.png'