Matrix elements to pixel colors

2022 2 5
2 个回答
更新时间：2022 2 6
4 次查看（30 天）

0 个投票

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!

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回答（2 个）

Voss
Voss 2022-2-5
Ran in:

1 个投票

Ran in:
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]
Image Analyst
Image Analyst 2022-2-6

0 个投票

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.

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