帮我用伪代码写一份GCC广义互相关算法实现的

好的，GCC（Generalized Cross Correlation）广义互相关算法是一种图像处理算法，常用于目标匹配和图像对齐等领域。以下是伪代码实现：

function GCC(image1, image2):
    # 转换为灰度图
    gray_image1 = convert_to_gray(image1)
    gray_image2 = convert_to_gray(image2)
    
    # 计算图像均值
    mean_image1 = calculate_mean(gray_image1)
    mean_image2 = calculate_mean(gray_image2)
    
    # 计算归一化图像
    normalized_image1 = normalize_image(gray_image1, mean_image1)
    normalized_image2 = normalize_image(gray_image2, mean_image2)
    
    # 计算互相关系数
    correlation = cross_correlation(normalized_image1, normalized_image2)
    
    # 返回互相关系数
    return correlation

function convert_to_gray(image):
    # 将彩色图像转换为灰度图
    gray_image = ...
    return gray_image
    
function calculate_mean(image):
    # 计算图像的均值
    mean = ...
    return mean
    
function normalize_image(image, mean):
    # 归一化图像
    normalized_image = ...
    return normalized_image
    
function cross_correlation(image1, image2):
    # 计算两幅图像的互相关系数
    correlation = ...
    return correlation