Howtosignalprocessing
The Radon transform is a mapping from the Cartesian rectangular coordinates (x,y) to a distance and an angel (ρ,θ), also known as polar coordinates. An example of the transform of an image for a specific angle is given in Figure 2.
What does radon transformation do?
The Radon transform is an integral transform whose inverse is used to reconstruct images from medical CT scans. A technique for using Radon transforms to reconstruct a map of a planet's polar regions using a spacecraft in a polar orbit has also been devised (Roulston and Muhleman 1997).
What is inverse Radon transform?
Inverse Radon Transform Definition. The iradon function inverts the Radon transform and can therefore be used to reconstruct images. As described in Radon Transform, given an image I and a set of angles theta , the radon function can be used to calculate the Radon transform. R = radon(I,theta);
How to do Radon transform matlab?
R = radon( I ) returns the Radon transform R of 2-D grayscale image I for angles in the range [0, 179] degrees. The Radon transform is the projection of the image intensity along a radial line oriented at a specific angle. R = radon( I , theta ) returns the Radon transform for the angles specified by theta .
