MATLAB: Error undefined fuction and varible

f=featurestatical(im) error

%% taking the Image 
clc
clear all;
close all;
[fname path]=uigetfile('.jpg','open a  face as input for training');
fname=strcat(path,fname);
im=imread(fname);
imshow(im);
title('input faces');
c=input('Enter the class(number from 1-10)');
%% features extraction 
F=Featurestatical(im);
try
    load db;
    F=[F c];
    db=[db;F];
    save db.mat db
catch
    db=[f c]; %10 12 1
    save db.mat db
end

Best Answer

Deepak - it looks like you have copied this code from (perhap) https://www.mathworks.com/matlabcentral/answers/435101-this-is-my-code-and-i-trained-two-types-of-classes-in-there-a-building-as-class-1-and-a-mountain-as so you will need to make sure that you have the function FeatureStatistical in your MATLAB search path. And you will want to make sure that the function call is spelled correctly. Try changing

F=Featurestatical(im);

F=FeatureStatistical(im);

Related Solutions

MATLAB: How to remove this error : Error using horzcat Dimensions of matrices being concatenated are not consistent.

My guess is that your code is throwing the error with one of these:

F = [F c];
db = [db;F];
F = [m s];

Check the size (and perhaps class) of the elements you are attempting to concatenate.

MATLAB: Hi! Would you please help me :] the db.mat only save the last input image value. this don’t give multiple images input values.

Your question concerned the saving of data. I find the save command here:

try
  S = load('db.mat');
  F=[F c];
  db=[db;F];
  save db.mat db
catch
  F=reshape(F,[3,2]);
  F=reshape(F,[1,6]);
  db=[F c];
  save db.mat db
end

Now we cannot guess what happens, and the code suppressed the output of explanations also. What a pity. Prefer to display a message, if you catch an error:

 try
    S = load('db.mat');
    F=[F c];
    db=[db; F, c];
  catch ME
    disp(ME.message);
    % F  = reshape(F,[3,2]);  % Omit the duplicate reshaping - it has no effect
    F  = reshape(F, [1,6]);
    db = [F c];
  end
  save('db.mat', 'db');

So what do you see? Perhaps the file "db.mat" is not found in the current folder. Then provide a path.

Some hints:

"db.mat only save the last input image value" is not clear. Where do you expect the code to behave differently?
It is a mystery for me, why so many users include this evil brute clearing header in the code: clc;clear all;close all; Especially the clear all is bad, because it deletes all loaded functions from the memory. Reloading from the disk is slow and a waste of energy.
Do not shadow the important built-in function "path" by a local variable. This can cause strange results during debugging.
Use fullfile instead of strcat to create a file name.
While mean(mean(X)) is a valid method to calculate the total mean value as in mean(X(:)), this does not work for std. Are you sure that you want to get the standard deviation over the the standard deviations of the columns of X? I assume std(std(img)) is not what you want.

Best Answer

Related Solutions

MATLAB: How to remove this error : Error using horzcat Dimensions of matrices being concatenated are not consistent.

MATLAB: Hi! Would you please help me :] the db.mat only save the last input image value. this don’t give multiple images input values.

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