SYDE 575: Image Processing Introduction Read

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SYDE 575: Image Processing Introduction Read
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SYDE 575: Image Processing Introduction Read Textbook Chapters 1 2 Definition: manipulation of digital image for enhancement, compression, transmission, information extraction or analysis manipulation involves denoising, enhancement,

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SYDE 575: Image Processing Introduction

Read Textbook Chapters 1 & 2<br>
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Definition: manipulation of digital image for enhancement, compression, transmission, information extraction or analysis
“manipulation” involves denoising, enhancement, registration, color mapping, rescaling, feature point detection, illumination reduction, …
Digital image defined as a 2-d function: f(x,y)
‘x’ and ‘y’ are spatial (in-plane) coordinates
f(x,y) is the value (usually stored as discrete) at a spatial (x,y) location
With multiple images of the same scene, one can deduce 3-d geometry and pixels in the image could have 3-d coordinates e.g., f(x,y,z) where (x,y,z) represents spatial coordinates
A video is defined as a 3-d function: f(x,y,t) where ‘t’ represents time What is Digital Image Processing?<br>
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Computer Vision Image Analysis: content extraction e.g., segmentation, shape description, boundary detection, mathematical morphology, texture feature extraction, motion estimation
Image Understanding: decision making based on content extraction; covered in SD372 and SD675
SD575 deals primarily with “Image Processing” and, later in the course, “Image Analysis” Scene Image Processing Image Analysis Image Understanding Information<br>