Hi, This is my code.[fname path]=uigetfile('.jpg','open a image as input for trining'); fname=strcat(path,fname); im=imread(fname); imshow(im); title('Input Image'); c=input('Enter the Class (Numbers from 1-10)'); %%Feature extraction F=FeatureStatis

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Samadhi Hirimuthugoda 2018-9-16

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评论： Image Analyst 2018-9-16

c=input('Enter the Class (Numbers from 1-10)') in here I want to put the image class in string characters. how can I do it insted of numbers.

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Answer 1

Image Analyst 2018-9-16

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To get your number as a string instead of a double, use the 's' option:

classNumber = input('Enter the class number : ','s')

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Samadhi Hirimuthugoda 2018-9-16

编辑：Image Analyst 2018-9-16

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Thank you very much. This is my first math lab program. When I move to the testing step I got an error.

"Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters."

My code is this.

[fname path]=uigetfile('.jpg','Provide a Image for Testing');
fname=strcat(path,fname);
im=imread(fname);
imshow(im);
title('Test Image');
%%Find out which class it belongs
Ftest=FeatureStatistical(im);
%%Compare with database
load db.mat
Ftrain=db(:,1,2);
Ctrain=db(:,3);
for{1=1:size{Ftrain,1}}
dist{1,:}=aum(aba{Ftrain{1,:}-Ftest});
end
m=find(dist==min(dist),1);
det_class=Ctrain(m);
msgbox(strcat('detected class=',num2str(det_class)));

And the error gives for this.

for{1=1:size{Ftrain,1}}

If you can please help me

Image Analyst 2018-9-16

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Don't use braces. Try this:

for k = 1 : size(Ftrain,1)
  dist{1,:} = aum(aba(Ftrain{1,:}-Ftest));
end

but I'm not sure what your variables are. Use braces only with cell arrays and tables. See the FAQ: http://matlab.wikia.com/wiki/FAQ#What_is_a_cell_array.3F

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