19、图像处理与递归函数的深入探索

图像处理与递归函数的深入探索

1. 图像处理工具包构建

在图像处理领域，构建一个实用的工具包能极大提升处理效率。下面将介绍几个重要的图像处理函数。

1.1 亮度调整函数

亮度调整函数 adjustBrightness 可对图像的亮度进行调整。以下是完整的函数代码：

def adjustBrightness(image, amount) :
    width = image.width()
    height = image.height()

    # Create a new image that is the same size as the original.
    newImage = GraphicsImage(width, height)
    for row in range(height) :
        for col in range(width) :

            # Get the color of the pixel in the original image.
            red = image.getRed(row, col)
            green = image.getGreen(row, col)
            blue = image.getBlue(row, col)

            # Adjust the brightness and cap the colors.
            newRed = red + red * amount