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Digital Image Processing R.Gonzales R.Woods.

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Presentation on theme: "Digital Image Processing R.Gonzales R.Woods."— Presentation transcript:

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5 Digital Image Processing R.Gonzales R.Woods

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

10 Average [3x3] Median [3x3]

11 8 (Laplacian) 00 4 0 0 Another conventional form of Laplacian operator :

12 Laplacian of Gaussian

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15 1 000 111 -2 000 121 GradientPewittSobel

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

17 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

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23 Object Lens Receptors Object Image Processing

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

25 We need to “build” the image ourselves

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

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28 MRI device Patient Magnetic field generator RF Reconstruction

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