MATLAB: Anyone can tell me about radon transform

compressed sensingcompressive sensingimage processingradon transform

I = imread('peppers.bmp');
A = im2double (I);
R = radon (A,0:180);
P = iradon (R,0:180);

this is the coding i use for radon transform and its inverse. the resulting image for theta 180 degree much clear rather than 90 degree. i don't understand the situation. why it is happen? thank you for your help.

Best Answer

The more angles you have, the more data is sampled, the higher quality an image you recover.

What are you trying to accomplish?

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      I = imread ('asdasd.tif'); 
         N=length(I);
      Rad = radon (img,0:4:179);
         Rad=Rad(1:4:end,:)
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You cannot apply radon() to an RGB image. Look at ndims(A) to see whether it is 2 (2D) or 3 (RGB or RGBA)

Note that some RGB images look grayscale, because they happen to have equal R G and B.

Best Answer

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