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Image processing laboratory

4.9 | 11 ratings Rate this file 56 Downloads (last 30 days) File Size: 13.5 MB File ID: #28445
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Image processing laboratory


Francesco Pizzo


11 Aug 2010 (Updated )

An application with an intuitive GUI that you can use for some image processing exercises.

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The features are:

1) Display only Red, Green or Blue image color
2) Display luma (y) component
3) Graphic equalizer
4) Quantization from 8bit (per pixel xomponent) to 3 bit
5) JPG compression with interactive mask

There is a video-tutorial in English inside!
(you can also watch it at:

MATLAB release MATLAB 7.7 (R2008b)
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Comments and Ratings (26)
19 Dec 2014 Manimozhi Iyer

Manimozhi Iyer

pls provide clear idea about ray tracing methods in image processing in Matlab 7 versions

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03 Dec 2013 Esperanza



10 Nov 2012 Kyp


I am using the R2011a version! I am typing img_lab in the command line but i am still getting the error:

??? Error while evaluating uicontrol Callback

??? Index exceeds matrix dimensions.

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04 Nov 2012 Francesco Pizzo

Francesco Pizzo

I have tried with tif images and it works. Maybe your error it is due to the matlab version, which version do you use?
Remember that to run the application it is necessary to type "img_lab" into the command line ;)

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03 Nov 2012 Kyp


When i run the gui, and i choose a photo(.tif) i took a message saying: Index exceeds matrix dimensions.

Error in ==> show_rgb at 16

Is there any idea how to get rid of that problem?
Thank you in advance :)

09 May 2012 Alexios Fourlis

Alexios Fourlis

Very helpful program! Nice work... :)

01 May 2012 Erdi


03 Apr 2012 Francesco Pizzo

Francesco Pizzo

thank you for rating :)

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02 Apr 2012 STALKER_LRP


I liked!!!

30 Mar 2012 rabah



29 Mar 2012 Kiattisak Jantasri

Kiattisak Jantasri

thank you.

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21 Feb 2012 rulox garx

rulox garx


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16 Feb 2012 Yating


Thanks! :D

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25 Jul 2011 mat cognome

mat cognome

click on "download all" button, on the top right corner of the page

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25 Jul 2011 nitesh kumar

nitesh kumar


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10 Jun 2011 Francesco Pizzo

Francesco Pizzo


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10 Jun 2011 ashutosh tripathy

ashutosh tripathy

realy liked it

10 May 2011 Francesco Pizzo

Francesco Pizzo


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10 May 2011 Frikha


love it !!

09 May 2011 Francesco Pizzo

Francesco Pizzo


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09 Apr 2011 Michael Ridge

Michael Ridge

there is no sound and the words are too small to read

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04 Nov 2010 Francesco Pizzo

Francesco Pizzo

You can modify or completly change the GUI directly with matlab, you have to type "guide" and then click on "open existing gui" and look for "img_lab.fig"

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04 Nov 2010 Azlan


great set.
so,how I can simply add another interface/m-file?

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08 Sep 2010 paramveer sran

paramveer sran

Great program. Thanks!

24 Aug 2010 Tanyer Alan

Tanyer Alan

11 Aug 2010 Anna DB

Anna DB

27 Aug 2010

Only add a video-tutorial in English inside!

27 Aug 2010

Video-tutorial updated

30 Aug 2010

Updated video tutorial

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