Not getting 360 values from Histogram

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Explorer
Explorer 2014-2-11
回答： Image Analyst 2014-2-11
I should get 360 values of histogram of distances from centroid (signature of object) as mentioned here : http://www.2shared.com/photo/baX-TtQ6/follow.html
But I am getting only ten values from histogram.
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Input Image : http://www.2shared.com/photo/8ByI-jZE/figure1.html
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MATLAB Code :
clear all; close all; imtool close all; clc;
image = imread('C:\Users\Explorer\Desktop\aa_contour.jpg');
BW = im2bw(image);
stats = regionprops(BW, 'Centroid') ;
c = stats.Centroid ;
boundary = bwboundaries(BW);
thisBoundary = boundary{1}; % Or whatever blob you want.
x = thisBoundary(:,1);
y = thisBoundary(:,2);
distances = sqrt((x - c(1)).^2 + (y - c(2)).^2) ;
[nelements, centers] = hist(distances)
bar(centers, nelements);
grid on;
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Output
nelements = 178 80 66 60 56 52 52 50 48 49
centers =
Columns 1 through 3
183.161086305936 204.483258917807 225.805431529678
Columns 4 through 6
247.12760414155 268.449776753421 289.771949365293
Columns 7 through 9
311.094121977164 332.416294589035 353.738467200907
Column 10
375.060639812778
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Histogram : http://www.2shared.com/photo/vQFkmlDY/histogram.html

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采纳的回答

Image Analyst
Image Analyst 2014-2-11
hist() by default makes 10 bins. Specify 360 in the arg list if you want 360 bins.

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