MATLAB Central Newsreader - how to take input image from user

how to take input image from user

Amol Deshpande — Wed, 09 Apr 2008 06:44:02 -0400

how to take input image from user through kerboard for
image processing? as we take value for any variabe say 'x'
from user through command scanf,similarly how to take
image in Matlab.

Re: how to take input image from user

Sven — Wed, 09 Apr 2008 07:33:02 -0400

"Amol Deshpande" <sdamol@rediffmail.com> wrote in message
<fthoji$t6n$1@fred.mathworks.com>...
> how to take input image from user through kerboard for
> image processing? as we take value for any variabe say 'x'
> from user through command scanf,similarly how to take
> image in Matlab.

What exactly do you mean by an image through a keyboard?

If you mean you ask the user to give matlab an image file
(.gif, .jpg, .bmp etc), then you can use the uigetfile
function to get a file name, and then use imread to load it
into matlab (although this isn't exactly getting the image
"from keyboard").

If you mean you want the user to somehow "type" the image
with the keyboard... then, other than asking them to type a
series of 1s or 0s, I'm a little lost.

Thanks,
Sven.

Re: how to take input image from user

Yumnam Kirani Singh — Wed, 09 Apr 2008 08:52:30 -0400

Won't an input box help?

Re: how to take input image from user

Amol Deshpande — Wed, 09 Apr 2008 08:58:02 -0400

image through keyboard means, for example if we type 'c'
from keyboard then matlab should take 'cameraman.tif',if
we type 'f' then matlab should take 'football.jpg' etc;
and after taking the image the program should use the
image which we have provided to the program(like here we
have provided 'cameraman.tif').so what is the command or
function which will ask us 'which image you want to
process?' and then we can provide any image of our choice.

Re: how to take input image from user

roberson@ibd.nrc-cnrc.gc.ca (Walter Roberson) — Wed, 09 Apr 2008 16:15:04 -0400

In article <fti0eq$brs$1@fred.mathworks.com>,
Amol Deshpande <sdamol@rediffmail.com> wrote:
>image through keyboard means, for example if we type 'c'
>from keyboard then matlab should take 'cameraman.tif',if
>we type 'f' then matlab should take 'football.jpg' etc;
>and after taking the image the program should use the
>image which we have provided to the program(like here we
>have provided 'cameraman.tif').so what is the command or
>function which will ask us 'which image you want to
>process?' and then we can provide any image of our choice.

If your program knows the names of the possible images in advance,
then consider using the menu() function, or the input() function
with the 'string' option.
--
"Beware of bugs in the above code; I have only proved it correct,
not tried it." -- Donald Knuth