Problem Matlab Ubuntu

Hi everyone, i have a problem for running matlab in ubuntu with the path directory. I use this form:

Amoy=Average('./TestProcess/') (The function requires the path directory of the images to process)

So, this doesn't work in ubunto but the strange is that same function works perfectly in windows Xp.

The error shows

Error using => imread at 374

If Anyone can help me I will apreciate

Thanks to all

[Walter Roberson]

What is the error message shown for imread() ?

[Daniel Shub]

REading from the source of imread line 374 in r2011a:

error('MATLAB:imread:fileOpen', 'File "%s" does not exist.', filename);

[Walter Roberson]

And which filename is it that it says does not exist?

Have you tried

cd('./TestProcess')

Amoy = Average('.')

[Bhadange Mihir]

Hey i can't install matlab on ubuntu. please help

[Walter Roberson]

Please open a question about installing matlab as it is not relevant to the current topic

Answer 1

[Alex Taylor]

To get an answer to your question, you should set a breakpoint at the line where you are calling imread. Examine the full path and filename you are passing to imread. It is very likely be that when you do this, it will be a simple unix path vs. windows path issue.

I'd look at the functions fullfile and filesep for help generating platform agnostic paths.

help fullfile
help filesep

Hope this helps.

Alex.

Answer 2

[Daniel Shub]

Are all your file separation slashes correct? You can use filesep to handle the / and \ differences. Is the directory your images in readable?

Answer 3

[Alex Molina]

>> Amoy = Average('./TestProcess/'); ??? Error using ==> imread at 374 File "./TestProcess/./TestProcess/CamA_2008_04_07_15_00_00_17.jpg ./TestProcess/CamA_2008_04_07_15_00_00_67.jpg ./TestProcess/CamA_2008_04_07_15_00_01_17.jpg ./TestProcess/CamA_2008_04_07_15_00_01_67.jpg ./TestProcess/CamA_2008_04_07_15_00_02_17.jpg ./TestProcess/CamA_2008_04_07_15_00_02_67.jpg ./TestProcess/CamA_2008_04_07_15_00_03_17.jpg ./TestProcess/CamA_2008_04_07_15_00_03_67.jpg ./TestProcess/CamA_2008_04_07_15_00_04_17.jpg ./TestProcess/CamA_2008_04_07_15_00_04_67.jpg " does not exist.

Error in ==> Average at 15 A = imread([ImgPath,lsrep(1,:)]);

This is the message, that appears when i try to ejecut the function. I try to change the slashes the point but doesn't works in ubuntu 10.04

[Daniel Shub]

It looks like you are trying to read more than one file.

[Alex Molina]

well in fact the function make a average of all images in the directory

[Alex Molina]

And this function works perfectly in windows :S!!! So i don't understand why happend that..

[Walter Roberson]

imread() can only read one file at a time on any OS.

Your routine "Average" needs to read one file at a time and work that way.

I wonder, by the way, what Average() is intended to do if the images are different sizes?

[Alex Molina]

This function was made to specif a group of images, captured from a camera

[Alex Molina]

So this images are standard size

[Walter Roberson]

And if other images accidentally get put in to the same directory?