Matrix elements to pixel colors

Hello there,

I have a 3000*3000 matrix, elements of which are either 0 or 1. I want to make an image out of it, at which every element matches to a pixel.

The pixels will have black color if the value of the element is 0 and white if the value is 1. Any ideas?

Thank you for your interest!

Answer 1

[Voss]

I = randi(2,3000,3000)-1;
my_image = imshow(I);

get(my_image)

             AlphaData: 1
      AlphaDataMapping: 'none'
          BeingDeleted: off
            BusyAction: 'cancel'
         ButtonDownFcn: ''
                 CData: [3000×3000 double]
          CDataMapping: 'scaled'
              Children: [0×0 GraphicsPlaceholder]
              Clipping: on
           ContextMenu: [0×0 GraphicsPlaceholder]
             CreateFcn: ''
             DeleteFcn: ''
      HandleVisibility: 'on'
               HitTest: on
         Interpolation: 'nearest'
         Interruptible: off
                Parent: [1×1 Axes]
         PickableParts: 'visible'
              Selected: off
    SelectionHighlight: on
                   Tag: ''
                  Type: 'image'
              UserData: []
               Visible: on
                 XData: [1 3000]
                 YData: [1 3000]

[Tasos Kamenides]

Thank you very much!

Answer 2

[Image Analyst]

You state "I have a 3000*3000 matrix, elements of which are either 0 or 1. I want to make an image out of it". Well, your matrix already IS an image. There is nothing you have to do. To prove it, you can simply display your matrix:

imshow(yourMatrix, []); % Display yourMatrix as an image.