Digital Image Processing R.Gonzales R.Woods

1/162/161/16 2/164/162/16 1/162/161/16 1/9 Average Gaussian

Average [3x3] Median [3x3]

8 (Laplacian) Another conventional form of Laplacian operator :

Laplacian of Gaussian

GradientPewittSobel

Vetical and Horizontal absolute response to Sobel Filter, threshold and combined

Digital Imaging and Communications in Medicine Universal standard file for medical images .dcm file  dicominfo( ) : load the DICOM structure  dicomread( ) : load the DICOM file image  dicomwrite ( ) : create a DICOM file

Object Lens Receptors Object Image Processing

But one does not simply photograph a slice of the human body !

We need to “build” the image ourselves

Unknown Our goal is to “reconstruct” an image from this raw data (We do many more than 2 angles)

MRI device Patient Magnetic field generator RF Reconstruction