3d plot of an image

size(I)

ans =

   287   499     3

Please let me know how can I get 3D plot of the image I?

[Walter Roberson]

You currently have three obvious dimensions, but also one dimension more because each element in the array has a value. How do you want to project your 4 dimensions of information into a 3 dimension plot ?

[Mahua Nandy(Pal)]

Please let me know how can i get the 3d frequency representation of a filtered mri image?

[Image Analyst]

Your MRI image has only 3 slices? Well there's not much point in the 3D frequency then. What kind of frequency information could you have along the 3 slice axis? Not much. Just take one of the 2D slices and take the 2D FFT and look at that.

[Mahua Nandy(Pal)]

I have filtered it with gabor now at each coordinate position, some filtered value is present how can i plot that to visualize the effect

[Image Analyst]

I'm not sure what you're after. Like I said the FFT is used to visualize spatial frequency distribution.

Answer 1

[Image Analyst]

This is probably a color image rather than a monochrome volumetric image. So what does a 3D image of this look like to you? Do you want to take each color channel and plot it in 2.5D as a surface rendering - a perspective image using surf()? Do you want to compute a luminance image and then render that with surf() and apply coloring to the surface that matches the original color? Why do you want a "3D" rendering anyway? What good does it do you?