请给我一个Llyod算法进行图片不同位数量化的matlab函数

Lloyd算法是一种用于图像量化的算法，它可以将图像的颜色用较少数量的颜色来表示。下面是一个用于进行图像不同位数量化的matlab函数：

function [quantized_image, colors] = quantize_image_lloyd(image, n_colors)
%QUANTIZE_IMAGE_LLOYD Quantizes an image using the Lloyd algorithm.
% [quantized_image, colors] = quantize_image_lloyd(image, n_colors)
% quantizes the image using the Lloyd algorithm, resulting in a
% quantized image with n_colors colors. colors is a n_colors x 3 matrix
% containing the colors used in the quantized image.

% Initialize the colors to be the first n_colors colors in the image.
colors = double(image(1:n_colors, :));

% Iterate until the colors converge.
while true
% Compute the distances between each pixel and each color.
distances = pdist2(double(image), colors);

% Find the closest color for each pixel.
[~, indices] = min(distances, [], 2);

% Compute the new colors by averaging the pixels assigned to each color.
new_colors = zeros(size(colors));
for i = 1:n_colors
pixels = image(indices == i, :);
if ~isempty(pixels)
new_colors(i, :) = mean(pixels, 1);
else
new_colors(i, :) = colors(i, :);
end
end

% Check if the colors have converged.
if all(abs(new_colors - colors) < 1e-5)
break;
end

% Update the colors.
colors = new_colors;
end

% Quantize the image.
[~, indices] = min(pdist2(double(image), colors), [], 2);
quantized_image = colors(indices, :);
end