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From: Paul on 31 Mar 2010 09:59
For the last 3 hours ive been unable to fix what should be easy.

I want to use a user defined variable to save the file to.

where have i gone wrong.
thanks.

relevant Code:

flashImage = double(imread(test.jpg))/255;
name = inputdlg('enter a name for your image','',1,{'PictureName'});
name
imwrite(flashImage, name,'jpg');



Output:

name =

'PictureName.jpg'

??? Error using ==> imwrite at 363
Invalid colormap

Error in ==> GUI>importPictures_Callback at 355
imwrite(flashImage, name,'jpg');

Error in ==> gui_mainfcn at 96
feval(varargin{:});

Error in ==> GUI at 42
gui_mainfcn(gui_State, varargin{:});

??? Error while evaluating uicontrol Callback

>>



Changing to :
imwrite(flashImage, HSV,name,'jpg');
gives :
Invalid input arguments: missing filename
From: Steven Lord on 31 Mar 2010 10:20

"Paul " <overclocked89(a)hotmail.co.uk> wrote in message
news:hovkf9$d1v$1(a)fred.mathworks.com...
> For the last 3 hours ive been unable to fix what should be easy.
>
> I want to use a user defined variable to save the file to.
>
> where have i gone wrong.
> thanks.
>
> relevant Code:
>
> flashImage = double(imread(test.jpg))/255;
> name = inputdlg('enter a name for your image','',1,{'PictureName'});
> name
> imwrite(flashImage, name,'jpg');
>
>
>
> Output:
>
> name =
> 'PictureName.jpg'

From the way that's displayed, I'm guessing it's a 1-by-1 cell array whose
only cell contains the string PictureName.jpg. If so, extract the contents
and pass them into your IMWRITE call:

imwrite(flaseImage, name{1}, 'jpg')

--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ


From: Paul on 31 Mar 2010 10:45
thanks, but now ive got:

??? Error using ==> writejpg at 43
3-D indexed image data not supported for JPEG files

Error in ==> GUI>importPictures_Callback at 355
imwrite(flashImage, HSV,name{1},'jpg');
From: Paul on 31 Mar 2010 10:47
forget that, Removed the colormap from the write function, and works great.

thanks for spotting my mistake :)
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