I am getting Subscripted assignment dimension mismatch in the following code.

    fprintf('Extracting features...  ');
tic;
n1=145;%set n1 value
dim=120;%set Dimension
temp=0;
for a=1:n1
    s = strcat('C:\Users\om\Desktop\abhinav\a (', int2str(a), ').jpg');
    %I = imresize(imread(s),[512 NaN]);
    I=imread(s);
    faceDetector = vision.CascadeObjectDetector();
    bbox = step(faceDetector, I);
    fprintf('Total %d faces found. Beginning comparison..  \n', size(bbox,1));
    for b=1:size(bbox,1);
        fprintf('Face %d -> ', b);
        X = imcrop(I,bbox(b,:));
        temp=temp+1;
        I1 = imresize(X,[dim dim]);
        J = rgb2gray(I1);
        T(temp,:) = hog_feature_vector(J); 
        fprintf('Yo');
    end
end

The error is in "T(temp,:) = hog_feature_vector(J);" I have hog_feature_vecture(IMG) already made and its working perfect. Please help. Edit 1. Attached hog_feature_vector.m . Sorry for not attaching earlier.

Answer 1

[J. Webster]

Gonna be hard to troubleshoot this without seeing what hog_features_vector() returns, or what the dimensions of T are.

my guess is that you are trying to insert a row where you should be inserting a column, of vice versa.

for example,

x = rand(5,10);
y = rand(10,1);
x(1,:) = y;  %No error, all is ok since the second dimension of x matches the length 0f y
x(:,1) = y;  %Error, subscripted assignment mismatch...   because the 1st dimension of x is ony 5

[Abhinav Rai]

Attached hog_feature_vector.m . Please answer

[J. Webster]

yep, hog returns a row, it may be as simple as transposing the return value from hog...

T(temp,:) = transpose(hog_feature_vector(J));

[Abhinav Rai]

Getting same error.