图像质量评估双11优惠活动

import cv2
import numpy as np

def adjust_brightness_contrast(image, brightness=0, contrast=0):
    """
    Adjusts the brightness and contrast of an image.
    :param image: Input image.
    :param brightness: Brightness offset (0-100).
    :param contrast: Contrast multiplier (0-3).
    :return: Adjusted image.
    """
    brightness = int((brightness - 50) * 2.55)  # Convert to OpenCV range
    contrast = np.int16(contrast * image)
    adjusted = cv2.addWeighted(image, 1 + contrast / 127.0, image, 0, brightness)
    return np.clip(adjusted, 0, 255).astype(np.uint8)

# Load an image
img = cv2.imread('example.jpg')

# Adjust brightness and contrast
adjusted_img = adjust_brightness_contrast(img, brightness=10, contrast=10)

# Save the result
cv2.imwrite('adjusted_example.jpg', adjusted_img)