passing cell array to function

Hi,

I am trying to pass a cell array of images to a function which converts each image to grayscale and single precision and then does some manipulation on them:

    function [a, b, c]= createGMM(cell_array)
     for k=1:length(cell_array)

     %convert to grayscale
     new_image=rgb2gray(cell_array{k});

     %convert to single
     single_image=im2single(new_image);
     ..........
     ..........

When I run this code- [m, c, p]= createGMM(images) with the 'images' cell array (which is in my workspace) I get the error

Undefined function 'createGMM' for input arguments of type 'cell'.

Please let me know what I am doing wrong. Thanks!

Answer 1

[Wayne King]

Have you saved the function in a folder that is on the MATLAB path?

MATLAB needs to know how to find the function.

Use

>>addpath 'c:\path_to_folder'

or

>>pathtool

to add the folder where you have save createGMM to the path.

Answer 2

[Walter Roberson]

createGMM.m is not on your MATLAB path, or your existing createGMM.m has an error in it that is preventing it from being parsed, so MATLAB is ignoring it.