What is the error at this demo program..?
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Nimisha
el 16 de Dic. de 2014
Comentada: Sean de Wolski
el 16 de Dic. de 2014
clc;
close all;
imtool close all;
clear;
workspace;
format long g;
format compact;
fontSize = 20;
folder = 'C:\Users\admin\Desktop\matlab10questions';
baseFileName = 'Coins.jpg';
fullFileName = fullfile(folder, baseFileName);
grayImage = imread(fullFileName);
[rows, columns, numberOfColorBands] = size(grayImage);
if numberOfColorBands > 1
grayImage = grayImage(:, :, 2); % Take green channel.
end
[pixelCount, grayLevels] = imhist(grayImage);
binaryImage = grayImage < 240;
binaryImage = bwconvhull(binaryImage, 'objects', 4);
imshow(binaryImage);
binaryImage = bwareaopen(binaryImage, 2000);
[LabeledImage, numberOfCoins]=bwlabel(binaryImage);
measurements = regionprops(LabeledImage,'Area','Centroid');
allAreas = [measurements.Area];
total1=0;
total2=0;
total3=0;
total4=0;
hold on
for n=1:size(measurements,1);
centroid = measurements(n).Centroid;
X=centroid(1);
Y=centroid(2);
if measurements(n).Area < 40000;
text(X-10,Y,'$0.1')
total1=total1+1;
elseif 41000 < measurements(n).Area < 50000
total2=total2+2;
text(X-10,Y,'$0.25')
elseif 65000 < measurements(n).Area < 75000
total3=total3+3;
text(X-10,Y,'$1')
elseif 91000 < measurements(n).Area < 99000
total4=total4+3;
text(X-10,Y,'$0.5')
else
end
end
number = n
total1 = total1;
total2 = total2;
total3 = total3;
total4 = total4;
hold on
title(['Pennies: $',num2str(total1),' ','Nickels: $',num2str(total2),' ','Dimes: $',num2str(total3),' ','Quaters: $',num2str(total4), 'Number of coins:',num2str(n)],...
'FontSize', fontSize)
When i run this script it always shows only two values in image. for $0.1 and $0.25 only.
Why remaining values are not show.? All ranges are within limit and correct.
1 comentario
Image Analyst
el 16 de Dic. de 2014
You forgot to attach your image so I can try your code with your image.
Respuesta aceptada
Image Analyst
el 16 de Dic. de 2014
You can't do this kind of thing:
elseif 41000 < measurements(n).Area < 50000
You have to do it in two tests:
elseif (41000 < allAreas(n)) && (allAreas(n) < 50000)
1 comentario
Sean de Wolski
el 16 de Dic. de 2014
Actually you can, it just returns unexpected results.
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