Python -获取图像区域的平均RGB分量

pip install pillow

from PIL import Image

def get_average_rgb(image, x, y, width, height):
    # 打开图像
    img = Image.open(image)
    
    # 裁剪图像区域
    region = img.crop((x, y, x+width, y+height))
    
    # 获取图像区域的所有像素
    pixels = region.load()
    
    # 初始化RGB分量的累加值
    total_r = 0
    total_g = 0
    total_b = 0
    
    # 遍历图像区域的每个像素
    for i in range(width):
        for j in range(height):
            # 获取像素的RGB值
            r, g, b = pixels[i, j]
            
            # 累加RGB分量的值
            total_r += r
            total_g += g
            total_b += b
    
    # 计算平均RGB分量
    average_r = total_r // (width * height)
    average_g = total_g // (width * height)
    average_b = total_b // (width * height)
    
    return (average_r, average_g, average_b)

image_path = 'image.jpg'
x = 100
y = 100
width = 200
height = 200

average_rgb = get_average_rgb(image_path, x, y, width, height)
print("平均RGB分量：", average_rgb)