小编pri*_*ing的帖子

作为这张图片,如何使用matlab代码将其拆分成不同的部分,然后填充颜色呢？另外,如何在第二个代码中设置渐变颜色???

这是图片分割代码:

clc
rgb=imread('sample1.bmp');
bw=im2bw(rgb2gray(rgb),.8);
bw=medfilt2(bw);
planes=bwareaopen(bw,800);
D=mat2gray(bwdist(imcomplement(planes)));
stats=regionprops(D>.8,'Centroid');
planes_centroid=cat(1,stats.Centroid);
planes_mask=false(size(bw));     
planes_mask(sub2ind(size(bw),round(planes_centroid(:,2)),...
        round(planes_centroid(:,1))))=1;
M=imimposemin(imcomplement(D),planes_mask);
L=watershed(M);
r=L & planes;
stats=regionprops(r,'BoundingBox','Centroid')
bb=cat(1,stats.BoundingBox);
c=cat(1,stats.Centroid);
figure,imshow(planes)
hold on
for i=1:length(stats)
   rectangle('Position',bb(i,:),'EdgeColor','b')
   plot(c(i,1),c(i,2),'r*')
   text(c(i,1)-5,c(i,2)-10,num2str(i))
end
%second code
clc;clf;close all;clear all;
color=cell(4,1);
for i=1:4
input=imread(['heartspline2_4_',num2str(i)],'bmp');  
figure,imshow(input);
BW=im2bw(input,graythresh(input));
[B,L]=bwboundaries(BW,'noholes');
for k=1:length(B)
   boundary=B{k};
   ind=size(boundary(:,2));
   plot(boundary(:,2),boundary(:,1),'k','LineWidth',2);
   hold on;
   axis off;
   if (k==1)
       patch(boundary(:,2),boundary(:,1),'w');
   else
       patch(boundary(:,2),boundary(:,1),???);
   end
end
saveas(gca,['y_','heartspline2_4_',num2str(i)],'bmp')
close(gcf)
end