digital image processing ppt presentation

... referred to as neighborhood processing, or spatial formulations representative of processing techniques in these two categories We also introduce the concept of fuzzy image processing and develop ... numerous other branches of digital image processing 3.1 Background As noted in the preceding paragraph, spatial domain techniques operate rectly on the pixels of an image The spatial domain processes ... coordinates ( , )x y in the images Trang 53.2.1 Functions imadjust and stretchlimFunction imadjust is the basic Image Processing Toolbox function for sity transformations of gray-scale images It has the

Ngày tải lên: 28/04/2014, 10:26

... Fourier transform Fourier transform H(u, v)F(u, v) Pre- Post- processing processing f(xy) g(x, y) Input Enhanced image image FIGURE 4.5 Basic steps for filtering in the frequency domain ... age of the displayed image cannot be zero because the image has to have Trang 14 160 Chapter 4 ® Image Enhancement in the Frequency Domain FIGURE 4.6 Result of filtering the image in Fig 4.4(a) ... These comments are directly applicable to two-dimensional (and higher) functions Thus, for digital image processing, ex- istence of either the discrete transform or its inverse is not an issue The

Ngày tải lên: 08/05/2014, 15:46

... gray-scale events in an image or sequence of images As noted Trang 226.3 # Pseudocolor Image Processing ab ed FIGURE 6.17 (a)—(c) Modified HSI component images (d) Resulting RGB image (See Fig 6.16 ... process a color image by processing each of its component images separately, using standard gray-scale image processing methods However, the re- sults of individual color component processing are ... when performed by humans) image analysis Color image processing is divided into two major areas: full-color and pseudo- color processing In the first category, the images in question typically

Ngày tải lên: 08/05/2014, 15:59

... Trang 1Digital Image Processing, 2nd ed. www.imageprocessingbook.com© 2002 R C Gonzalez & R E Woods Chapter 7Wavelets and Multiresolution Processing Chapter 7Wavelets and Multiresolution Processing ... Trang 2Digital Image Processing, 2nd ed. www.imageprocessingbook.com© 2002 R C Gonzalez & R E Woods Chapter 7Wavelets and Multiresolution Processing Chapter 7Wavelets and Multiresolution Processing ... Trang 3Digital Image Processing, 2nd ed. www.imageprocessingbook.com© 2002 R C Gonzalez & R E Woods Chapter 7Wavelets and Multiresolution Processing Chapter 7Wavelets and Multiresolution Processing

Ngày tải lên: 08/05/2014, 15:59

... the image At some later time, the compressed image is decompressed to reconstruct the original image or an approximation of it 409 Trang 2410 Chapter 8 mi Image Compression Interest in image ... Trang 11418 Chapter 8 i Image Compression © Consider the images in Fig 8.4 Figure 8.4(a) shows a monochrome image with 256 possible gray levels Figure 8.4(b) shows the same image after uniform quantization ... very poor image, but you could watch it Objectionable interference is definitely present 6 Unusable An image so bad that you could not watch it Trang 14 8.2 @ Image Compression Models Image

Ngày tải lên: 08/05/2014, 16:10

... a transition from image processing methods whose input and output are images, to methods in which the inputs are images, but the outputs are attributes extracted from those images (in the sense ... pass- ing through the image The images in the second column of Fig 10.7 are the first-order derivatives of the images on the left (we discuss computation of the first and second image derivatives ... is to divide the original image into subimages and then utilize a different threshold to segment each subimage The key issues in this approach are how to subdivide the image and how to estimate

Ngày tải lên: 08/05/2014, 16:29

... coverage of digital image processing with an introduction to techniques for object recognition As noted in Section 1.1, we have defined the scope covered by our treatment of digital image processing ... respectively A region on the ground scanned in this manner produces four digital images, one image for each band If the images are registered, a condition which is generally true in practice, ... rotation is present abc FIGURE 12.9 (a) Image (b) Subimage (c) Correlation coefficient of (a) and (b) Note that the highest (brighter) point in (c) occurs when subimage (b) is coincident with the

Ngày tải lên: 08/05/2014, 16:48

... is morphological imageprocessing (Chapter 9) The material in this chapter begins a transition from methodswhose inputs and outputs are images to methods in which the inputs are images, butthe outputs ... and input images Good signalstrength goes a long way toward reducing the effects of noise Another (sometimescomplementary) approach is to implement image processing techniques (e.g., imageaveraging) ... chapters of this manual Teaching Features of the Book Undergraduate programs that offer digital image processing typically limit coverage toone semester Graduate programs vary, and can include

Ngày tải lên: 05/06/2014, 11:40

... device for digital image acquisition, be it their cell phonecamera, digital camera, or scanner, has resulted in a plethora of digital imagesand, consequently, for many, digital image processing ... Principles of Digital Image Processing, Undergraduate Topics in Computer Science, DOI 10.1007/978-1-84800-191-6_1, Springer-Verlag London Limited, 2009 © Trang 172 1 Digital Imagesdigital image processing ... Bibliography 249 Index 253 Contents Trang 16Digital Images For a long time, using a computer to manipulate a digital image (i e., digitalimage processing) was something performed by only a

Ngày tải lên: 05/06/2014, 11:55

... "shrinking" of binary images t o similarly connected representations t h a t have smaller foregrounds (i.e., fewer Ts) has found application as a fundamental preprocessing step in image processing T w ... Vision, Graphics, and Image Processing, Vol 22, 1983, pp 287-300 6 R Lumia, "A New Three-Dimensional Connected Components Algorithm", Computer Vision, Graphics, and Image Processing, Vol 23, ... Tanimoto, "Time Complexity for Serial and Parallel Prop-agation in Images", in Architecture and Algorithms for Digital Image Processing, A Oosterlinck and P.-E Danielsson, (eds.) Proceedings

Ngày tải lên: 05/06/2014, 11:59

... umbrella of ‘digital image processing’ The purpose of this book is to provide an insight on the possibilities offered by digital image processing algorithms in various fields Digital image processing ... Trang 1DIGITAL IMAGE PROCESSING Edited by Stefan G Stanciu Trang 2Digital Image Processing Edited by Stefan G Stanciu As for readers, this ... representations and illustrative examples for an enhanced readability The chapters are written in a manner that allows even a reader with basic experience and knowledge in the digital image processing

Ngày tải lên: 28/06/2014, 08:20

... umbrella of ‘digital image processing’ The purpose of this book is to provide an insight on the possibilities offered by digital image processing algorithms in various fields Digital image processing ... Trang 1DIGITAL IMAGE PROCESSING Edited by Stefan G Stanciu Trang 2Digital Image Processing Edited by Stefan G Stanciu As for readers, this ... representations and illustrative examples for an enhanced readability The chapters are written in a manner that allows even a reader with basic experience and knowledge in the digital image processing

Ngày tải lên: 29/06/2014, 08:20

... 1.1 Images and pictures 1 1.2 What is image processing? 1 1.3 Image Acquisition and sampling 4 1.4 Images and digital images 8 1.5 Some applications 10 1.6 Aspects of image processing ... processing 11 1.7 An image processing task 12 1.8 Types of digital images 12 1.9 Image File Sizes 14 1.10 Image perception 16 1.11 Greyscale images 17 1.12 RGB Images 19 1.13 ... 71.2 WHAT IS IMAGE PROCESSING? 3(a) The original image (b) After removing noise Figure 1.2: Removing noise from an image (a) The original image (b) After removing the blur Figure 1.3: Image deblurring

Ngày tải lên: 23/07/2014, 00:24

... (ISO) standard library ofimage processing operators and associated utilities.” Again, for a fourth time, a new edition of Digital Image Processing is offered to the image processing community Why? ... In deterministic image representation, a mathematical image function is defined and point properties of the image are considered For a statistical image representation, the image is specified ... first edition of Digital Image Processing with the following statement: “The field of image processing has grown considerably during the pastdecade with the increased utilization of imagery in myriad

Ngày tải lên: 14/08/2014, 01:22

... and Image Processing, Image Processingand Interchange, Part 1: Common Architecture for Imaging,” ISO/IEC 12087-1:1995(E) 22 “Information Technology, Computer Graphics and Image Processing, Image ... 314 Digital Image Processing: PIKS Scientific Inside, Fourth Edition, by William K Pratt Copyright © 2007 by John Wiley & Sons, Inc. IMAGE SAMPLING AND RECONSTRUCTION In digital image processing ... RGB images are the basis for the gen-eration of the various color space image representations 3.5.1 Colorimetric Color Spaces The class of colorimetric color spaces includes all linear RGB images

Ngày tải lên: 14/08/2014, 01:22

... Southern California, Image Processing Institute, Los Angeles, August1975 R p = E pp∗{ T} = E Tff∗{ TT∗T} = TR f T∗T K p = TK f T∗T p = Tf K p = TK f T∗T = ΛΛ K f Trang 247 Digital Image Processing: PIKS ... theoutput image field may be described by the convolution integral (7.2-1b) For discrete processing, physical image sampling will be performed on the outputimage field Numerical representation ... LINEAR OPERATOR A large class of image processing operations are linear in nature; an output imagefield is formed from linear combinations of pixels of an input image field Suchoperations include

Ngày tải lên: 14/08/2014, 02:20

... for Image Processing,” ReportUSCIPI 950, University Southern California, Image Processing Institute, January 1980 Trang 23PART 4IMAGE IMPROVEMENT The use of digital processing techniques for image ... for image formation andrestoration, and present methods of point and spatial image restoration The finalchapter of this part considers geometrical image modification Trang 2510 Digital Image Processing: ... improvement is a term coined to denote three types of image manipulationprocesses: image enhancement, image restoration and geometrical image modi-fication Image enhancement entails operations that improve

Ngày tải lên: 14/08/2014, 02:20

... Trans Image Processing, 12, 12, December 2003, 1591–1598. 41 O D Faugeras, “Digital Color Image Processing Within the Framework of a Human Visual Model,” IEEE Trans Acoustics, Speech, Signal Processing, ... of image restoration techniques 11.1 GENERAL IMAGE RESTORATION MODELS In order effectively to design a digital image restoration system, it is necessaryquantitatively to characterize the image ... image digitization process FIGURE 11.1-1 Digital image restoration model. C x y t( , , ,λ)λ O P{ }· λ( ) Trang 6GENERAL IMAGE RESTORATION MODELS 309A digital image restoration system that follows

Ngày tải lên: 14/08/2014, 02:20

... and H J Trussell, “Colorimetric Restoration of Digital Images,” IEEE Trans Image Processing, 10, 3, March 2001, 393–402. Trang 313 Digital Image Processing: PIKS Scientific Inside, Fourth Edition, ... geometrical image manipulation: image mosaicing and image blending. Image mosaicing involves the spatial combination of a set of partially overlappedimages to create a larger image of a scene Image ... 3714 Digital Image Processing: PIKS Scientific Inside, Fourth Edition, by William K Pratt Copyright © 2007 by John Wiley & Sons, Inc. MORPHOLOGICAL IMAGE PROCESSING Morphological image processing

Ngày tải lên: 14/08/2014, 02:20

... DETECTIONof optical images of real scenes, generally do not possess step edges because the aliasing low-pass filtering prior to digitization reduces the edge slope in the digitalimage caused by any ... aluminance image: differential detection and model fitting With the differential detec-tion approach, as illustrated in Figure 15.1-6, spatial processing is performed on anoriginal image to produce ... con-ducted with relatively low signal-to-noise ratio images Section 15.5 provides exam-ples of such images For high signal-to-noise ratio images, the optimum threshold ismuch lower As a rule

Ngày tải lên: 14/08/2014, 02:20