why m not getting clearer circle edges after performing following operations .plz help

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shivu shetty
shivu shetty 2018-4-5
编辑： DGM 2024-2-2
clear all;
close all;
[FileName,PathName] = uigetfile('*.*','Select the image file');
nomfich=[PathName,FileName];
ima=imread(nomfich);
%sx=size(ima);
ima = imresize(ima, [400 400]);
HSV=rgb2hsv(ima);
H=HSV(:,:,1);
S=HSV(:,:,2);
V=HSV(:,:,3);
[hca1,hch1,hcv1,hcd1] = dwt2(H,'bior1.3');
[sca1,sch1,scv1,scd1] = dwt2(S,'bior1.3');
[vca1,vch1,vcv1,vcd1] = dwt2(V,'bior1.3');
SE = strel('disk',0);
hch1 = imdilate(hch1,SE,8);
hcv1 = imdilate(hcv1,SE,8);
hcd1 = imdilate(hcd1,SE,8);
sch1 = imdilate(sch1,SE,8);
scv1 = imdilate(scv1,SE,8);
scd1 = imdilate(scd1,SE,8);
vch1 = imdilate(vch1,SE,8);
vcv1 = imdilate(vcv1,SE,8);
vcd1 = imdilate(vcd1,SE,8);
LH=hch1+hcv1+hcd1;
LS=sch1+scv1+scd1;
LV=vch1+vcv1+vcd1;
a=idwt2(LH,hch1,hcv1,hcd1,'bior1.3');
%figure,imshow(a);
b=idwt2(LS,sch1,scv1,scd1,'bior1.3');
%figure,imshow(b);
c=idwt2(LV,vch1,vcv1,vcd1,'bior1.3');
%figure,imshow(c);
%hsvimg=a+b+c;
HSV1(:,:,1)=a;
HSV1(:,:,2)=b;
HSV1(:,:,3)=c;
figure,imshow(HSV1);
title('reconstructed HSV image');
rgbimg=hsv2rgb(HSV1);
%colormap(rgbimg);
figure,imshow(rgbimg);
%imhist(rgbimg);
title('reconstructed rgb image');
grayimg=rgb2gray(rgbimg);
figure,imshow(grayimg);
imhist(grayimg);
level = graythresh(grayimg);
BW = im2bw(grayimg,level);
figure,imshow(BW);
%im3 = im2bw(grayimg, 0.1);
im4 = imclose(BW, strel('disk', 4, 4));
im5 = imfill(im4, 'holes');
figure,imshow(im5);
[centers, radii] = imfindcircles(im5, [180, 200], 'Sensitivity', .99);
viscircles(centers, radii);
  1 个评论
DGM
DGM 2024-2-2
编辑：DGM 2024-2-2
Editor's note: I tried to fix the random broken formatting, but with all the linebreaks stripped and with so many commented lines of dead code in the mix, I had to guess which things were actually commented out. Maybe it's still wrong, but at least it's readable.

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回答（1 个）

Image Analyst
Image Analyst 2018-4-8
I already answered you in your other post. Here it is again:
Contact the Laboratory of Tree Ring Research at the University of Arizona. http://ltrr.arizona.edu/ They started the field and are probably still the world's leader. They can probably point you to their best publications. You might even be able to obtain code from them.

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