90 likes | 240 Views
Digital Image Processing. Plan. What is an image? Mathematical representation of monochromatic images What is a digital image? Digital image processing Fundamental steps Why do we need this?. column. f(x, y). row. y. x. Images. Sample Quantize. Digital Image. y. x. Gray Level.
E N D
Plan • What is an image? • Mathematical representation of monochromatic images • What is a digital image? • Digital image processing • Fundamental steps • Why do we need this?
column f(x, y) row y x Images Sample Quantize
Digital Image y x Gray Level f(x,y)
Fundamental Steps* Representation & Description Preprocessing Segmentation Knowledge Base Problem Domain Image Acquisition Recognition & Interpretation Result *Rafael C. Gonzalez and Richard E. Woods, Digital Image Processing, Addison-Wesley, 1992
DIP: Course Logistics http://faculty.petra.ac.id/resmana
Image Preprocessing Restoration Enhancement • Inverse filtering • Wiener filtering Spectral Domain Spatial Domain • Filtering • >>fft2/ifft2 • >>fftshift • Point Processing • >>imadjust • >>histeq • Spatial filtering • >>filter2
Point Processing(Intensity Transformation) s(x,y) = T{ r(x,y)} Transformed Gray Level Original Gray Level Transformation Function >>imadjdemo >>imadjust