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Technical discussion about Matlab and issues related to Digital Signal Processing.

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Functions and Database by matlab - Ghadeer - Mar 12 6:52:00 2004

Respected members, I want to learn how to return more than one value by a function in matlab. In fact i need tutorials in calling functions because the matlab help doesn't provide enough examples. Also how may i build my own database of images by matlab? Is there a way to do so? or i might just save my images in the same directory of the matlab. please help me waiting for you thanks alot Regards, Ghadeer El_Ghafri

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RE: Functions and Database by matlab - Ahmed El-Saied - Mar 12 15:03:00 2004

Hi All, For the first question of your mail , you can simply return any number of Arguments in Matlab function declaration as follows : function [outputs]=Name_of_function(Inputs) Like: function [a,b,c,d,e,f]=Operations(g,h,i,j,k) a= g+h; b= h+i; c=i+k; d=j+k; e=g*k; f=h*i*j; or , you can return all outputs in array , and then access to that array as : array(1),array(2) like : function [result]=Operations(g,h,i,j,k) a= g+h; b= h+i; c=i+k; d=j+k; e=g*k; f=h*i*j; result=[a,b,c,d,e,f]; But You Must Remember a very important point, you must save the name of the file as the function name (which is after = sign) !! For the Second Question .. the Graphical User Interface (GUI) gives you a perfect tool to make such the database .. you can use arrays to save your work ,, or if you work in a university (and you have a students for example) .. You can use the struct command..Using the struct command, arrays and GUI tools , you can make make a Nice data base .. As for image Processing, Actually, I am not clever in it , so, I am waiting any body else to answer this point (sorry for my Little knowledge as I am new to Matlab too :) ) .. I wish that you had found your answer here, and I am sure that the Genius Matlabers here will answer you soon by best ways.... Ahmed El-Saied -----Original Message----- From: Ghadeer [mailto:] Sent: Friday, March 12, 2004 8:52 AM To: Subject: [matlab] Functions and Database by matlab Respected members, I want to learn how to return more than one value by a function in matlab. In fact i need tutorials in calling functions because the matlab help doesn't provide enough examples. Also how may i build my own database of images by matlab? Is there a way to do so? or i might just save my images in the same directory of the matlab. please help me waiting for you thanks alot Regards, Ghadeer El_Ghafri _____________________________________ /groups.php3 Yahoo! Groups Links