imagesc problem when displaying a binary matrix

I have a GUI to apply some image processing filters to a matrix. After the filtering I want to display the filtered matrix on my GUI. The last section of my code looks like:

%Dilatation
Image = imdilate(Image,D);

%Erosion
Image = imerode(Image,E);

%Set the global variables
handles.Filtered = Image;

%Show the filtered matrix
imagesc(handles.Filtered,'Parent',handles.AxesA);

As you can imagine, the filtered matrix is displayed on my GUI. The problem is: a gray image is displayed altough I know surely that the filtered matrix contains some binary objects (GUI colormap is gray).

In order to test this I modify my code:

%Dilatation
Image = imdilate(Image,D);

%Erosion
Image = imerode(Image,E);

%Set the global variables
handles.Filtered = Image;

%Get the unique elements
Unique = unique(handles.Filtered);

%Show the filtered matrix in another figure
figure, imagesc(handles.Filtered);

%Show the filtered matrix
imagesc(handles.Filtered,'Parent',handles.AxesA);

Then I get something like this:

Anyone has an idea why a gray image displayed on my GUI? Unique elements in handles.Filtering are 0 and 1.

Thanks.

Answer 1

[Image Analyst]

Use imshow() instead of imagesc(). I never use imagesc(). It's not quite as bad as pcolor() but almost.

[Can]

My matrix contains values out of the interval [0,255]. This is why I use imagesc actually.

[Image Analyst]

That's not a reason. Use

imshow(yourMatrix, []);

and it will work just fine. You can apply a colormap if you want. Also, don't use Image as the name of a variable - it's dangerously close to image, which is the name of a built-in function.

Answer 2

[Can]

Adding

 set(handles.AxesA,'CLim',[0 1]);

before imagesc(...) solves my problem.