【#文档大全网# 导语】以下是®文档大全网的小编为您整理的《彩色图片分割法代码》,欢迎阅读!
I_rgb = imread('E:\road\liuzebei.bmp'); %读取文件数据 figure();
imshow(I_rgb); %显示原图 title('原始图像');
%将彩色图像从RGB转化到lab彩色空间 C = makecform('srgb2lab'); %设置转换格式 I_lab = applycform(I_rgb, C);
%进行K-mean聚类将图像分割成3个区域
ab = double(I_lab(:,:,2:3)); %取出lab空间的a分量和b分量 nrows = size(ab,1); ncols = size(ab,2);
ab = reshape(ab,nrows*ncols,2);
nColors = 3; %分割的区域个数为3 [cluster_idx cluster_center] =
kmeans(ab,nColors,'distance','sqEuclidean','Replicates',3); %重复聚类3次 pixel_labels = reshape(cluster_idx,nrows,ncols); figure();
imshow(pixel_labels,[]), title('聚类结果');
%显示分割后的各个区域 segmented_images = cell(1,3); rgb_label = repmat(pixel_labels,[1 1 3]);
for k = 1:nColors color = I_rgb;
color(rgb_label ~= k) = 0; segmented_images{k} = color; end
figure(),imshow(segmented_images{1}, title('分割结果——区域1'); figure(),imshow(segmented_images{2}, title('分割结果——区域2'); figure(),imshow(segmented_images{3}, title('分割结果——区域3');
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