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How can I know what my image dimension is?

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Shirin
Shirin on 15 May 2014
Answered: Image Analyst on 15 May 2014
Hi guys, I'm trying to register to medical images (CT & Echocardiography) together. while running the code, I faced to this error about "Image Dimension":
"Argument 'MovingImage' failed validation with error: All dimensions of the moving image should be greater than 4."
How can I know what my image dimension is, to set it greater than 4? Thank you in advance

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Answers (2)

Peter Bone
Peter Bone on 15 May 2014
If the image matrix is in your workspace, then just look at your workspace pane. It will tell you the dimensions. You could also use the size command to return the size of a matrix. Also, use imshow to make sure your images are correct. It sounds strange that the dimension should be 4 or less. Is it a colour image? Perhaps you have to convert to grayscale first to get a 2D matrix.

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Image Analyst
Image Analyst on 15 May 2014
Not sure how you're defining dimension but it should be 2 for a grayscale image and 3 for a color image or 3D volumetric image. You can do this
[rows, columns, numberOfColorChannels] = size(yourImage)
numberOfDimensions = ndims(yourImage)

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