Strange Graphical Display Problems

Hi. I am using matlab on a 32 bit pc with windows XP. When I run my GUI through matlab it all works perfectly. In short it catches an image from a camera and displays image max/min and mean values.

It also shows in a dialog box where the prefdir directory is. My problems arise after I have compiled it and try to run the EXe on the same PC (or indeed any other PC with the MCR).

The graphics just don't work!

Clearly, the image data is there somewhere as the max/min and mean values are close to the values when I run thru matlab. Any suggestions please??

Thanks

Answer 1

[Image Analyst]

What does it say in the console window? Was there any kind of error message?

You might have trouble finding someone to help since not many people have such an old operating system. Also, what version of MATLAB do you have?

[Jason]

Hi IA. There's nothing in the console window, no error message. I was wondering if it was a java problem?.

Or is there a better way to view my image: (Im sure I have read somewhere that this issue persists with Imshow.

img=mmc.getImage();      %This is fine
width=mmc.getImageWidth();
height=mmc.getImageHeight();

if mmc.getBytesPerPixel==2
    pixelType='uint16';
else
    pixelType='uint8';
end

img=typecast(img,pixelType);
img=reshape(img, [width, height]);
img=transpose(img);

axes(handles.axes1)
[high,low]=Autoscaleimage(handles,img,3);
imshow(img,[low,high]);

function [high,low]=Autoscaleimage(handles,Image,n)
mn=mean(Image(:));
sd=std2(Image(:));
low=mn-sd;
high=mn+n*sd;

[Image Analyst]

What if you just say

imshow(img,[]);

[Jason]

Yeah I've already done this. It all works fine on a windows 7, so Im coming to the conclusion its something to do with imshow and windows XP.

[Image Analyst]

I've use MATLAB with XP and had no problems, but that was with versions of MATLAB that came out way back then. It's possible if you're using a modern version of MATLAB that there may be quirks when running compiled versions on antique operating systems.

[Jason]

Yes I think your right, matlab 2014b, windows XP, MCR 8.4 and imshow just don't go together :-(

[Image Analyst]

See if this helps:

http://www.mathworks.com/support/bugreports/1293244