How to solve the error?

Question

Shaila parvin 2013-6-18

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/79374-how-to-solve-the-error

采纳的回答： David Sanchez

在 MATLAB Online 中打开

When I run the code it shows an error

"??? Undefined function or method 'get_image_features' for input arguments of type 'uint8'.

Error in ==> T_target at 13 F=get_image_features(I); %create feature vector for the image"

How to solve it?

function [Instances T_target]=create_learning_set()

%% create data set for each texture class

%for cloud class

srcFiles = dir('colored_textures\LearningSet\cloud\*.jpg'); % the folder in which ur images exists

Iin=[]; %this hold the data as input to the neural network

Target=[]; %this holds the target or the required result for each class %we put it manully.

%read the folder containing the coloud images for i = 1 : length(srcFiles)

    filename = strcat('colored_textures\LearningSet\cloud\',srcFiles(i).name);
    I = imread(filename); %read the image
    F=get_image_features(I); %create feature vector for the image
    Iin=[Iin F']; %concatenate the feature vector to the store of features
    Target=[Target, 100];%concatenate the target value for each feature vector
end

%for gravel class

srcFiles = dir('colored_textures\LearningSet\gravel\*.jpg'); % the folder in which ur images exists

for i = 1 : length(srcFiles)

    filename = strcat('colored_textures\LearningSet\gravel\',srcFiles(i).name);
    I = imread(filename);
     F=get_image_features(I); %create feature vector for the image
    Iin=[Iin F']; %concatenate the feature vector to the store of features
    Target=[Target, 200];%concatenate the target value for each feature vector
end

%for snake skin class

srcFiles = dir('colored_textures\LearningSet\wood\*.jpg'); % the folder in which ur images exists

for i = 1 : length(srcFiles)

    filename = strcat('colored_textures\LearningSet\wood\',srcFiles(i).name);
    I = imread(filename);
    F=get_image_features(I); %create feature vector for the image
    Iin=[Iin F']; %concatenate the feature vector to the store of features
    Target=[Target, 300];%concatenate the target value for each feature vector
end

T_target=Target; Instances=Iin; end

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Answer 1

David Sanchez 2013-6-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/79374-how-to-solve-the-error#answer_89115

在 MATLAB Online 中打开

Obviously, you have a problem with the function:

F = get_image_features(I);

By the name you gave it, if it does what it says, the code within has to be very large, but you should go along that code and try to identify what is going on. Debugging it would help you both learning what it is doing and identifying possible mistakes/errors. In case of doubt, ask again mentioning those sections of your code you have trouble with.