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

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);

[DGM]

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.

Answer 1

[Image Analyst]

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.