fundamental steps in digital image processing doc

... sk, …, sL-1} into which the input intensity values are correspondingly mapped (Figure 1) Thus, each pixel-intensity in the original image is mapped into a new intensity by indexing into this table ... by teaching intensity transformation as a point-processing transformation by which image pixel intensities are transformed into a different set of intensities based on input-out mappings Intensity ... intensity-quantization in use k i=0 Thus, c(k) =∑h(i) 3.2 Intensity Transformation Intensity transformation in the context of digital image processing is a point (pixel) processing technique or operation in which

Ngày tải lên: 30/10/2022, 17:25

... 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 ... Engineers, 83, 1974. 21 “Information Technology, Computer Graphics and Image Processing, Image Processingand Interchange, Part 1: Common Architecture for Imaging,” ISO/IEC 12087-1:1995(E) 22 “Information ... 324.1.1 Sampling Deterministic FieldsLet denote a continuous, infinite-extent, ideal image field representing theluminance, photographic density, or some desired parameter of a physical image In a perfect

Ngày tải lên: 14/08/2014, 01:22

... continuous domain coor-dinate of an object point in the scene, and let be the continuous domain-projectedcoordinate in the image plane The image plane is assumed to be at the center of the coor- dinate ... & Sons, Inc. MORPHOLOGICAL IMAGE PROCESSING Morphological image processing is a type of processing in which the spatial form orstructure of objects within an image are modified Dilation, erosion ... arise in computing Trang 19The spatial warping techniques discussed in this section have application for twotypes of geometrical image manipulation: image mosaicing and image blending. Image

Ngày tải lên: 14/08/2014, 02:20

... ENGINEERING ———————————————— ASSIGNMENT REPORT DIGITAL IMAGE PROCESSING IMAGE FUNDAMENTAL (Week: 1-2-3-4) Instructor: Prof Tran Thi Thanh Hai Hanoi, 2023 Trang 23 The First Step in Image Processing ... various image processing tasks, marking the initial steps on the journey towards a deeper understanding of com-puter vision We aim to demonstrate the importance of OpenCV in image processing and ... within the original image, which are crucial for determining Smin and Smax Subsequently, it iterates through each pixel within the image, computing a new pixel value (stretched pixel) using a linear

Ngày tải lên: 30/05/2024, 14:55

... TECHNOLOGYSCHOOL OF ELECTRICAL AND ELECTRONIC ENGINEERING———————————————— ASSIGNMENT REPORT DIGITAL IMAGE PROCESSING IMAGE FUNDAMENTAL (Week: 1-2-3-4)Instructor: Prof Tran Thi Thanh Hai Student ID: ... 3Transformation 3.1 Linear transform 3.1.1 Linear Transfrom using Numpy We have the result Trang 9Figure 3.1: Original ImageFigure 3.2: Original Histogram Figure 3.3: Image After Apply-ing Linear Transform ... 4.5: Original Image Figure 4.6: Image Applying Smoothing FilterCode 1 # Read image in grayscale 2 image = cv2 imread ( ’/ con tent / drive / MyDri ve / DIP / Lena png ’) 3 cv2_imshow ( image )

Ngày tải lên: 18/06/2024, 17:25

... having to become a signal processing expert The key lies in focusing on the fundamentals and their relevance to digital image processing The notation, usually a source of trouble for the beginner, ... Chapter 4 # Image Enhancement in the Frequency Domain Basics of filtering in the frequency domain Filtering in the frequency domain is straightforward It consists of the fol- lowing steps: - 1 ... Enhanced image image FIGURE 4.5 Basic steps for filtering in the frequency domain of this basic theme The important point to keep in mind is that the filtering process is based on modifying the

Ngày tải lên: 08/05/2014, 15:46

... combining these colors for print- ing produces a muddy-looking black So, in order to produce true black (which is the predominant color in printing), a fourth color, black, is added, giving rise ... geometrical formulas describing the reasoning outlined in the preceding discussion The key point to keep in mind regarding the cube arrangement in Fig 6.12 and its corresponding HSI color space is ... and intensity, quantities with which we are quite familiar when describing colors Pseudocolor Image Processing Pseudocolor (also called false color) image processing consists of assigning

Ngày tải lên: 08/05/2014, 15:59

... 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 ... Multiresolution Processing Trang 4Digital Image Processing, 2nd ed. www.imageprocessingbook.com© 2002 R C Gonzalez & R E Woods Chapter 7Wavelets and Multiresolution Processing Chapter 7Wavelets ... Multiresolution Processing Trang 5Digital Image Processing, 2nd ed. www.imageprocessingbook.com© 2002 R C Gonzalez & R E Woods Chapter 7Wavelets and Multiresolution Processing Chapter 7Wavelets

Ngày tải lên: 08/05/2014, 15:59

... practical aspects of image compression, including both the principal techniques in use and the standards that have been instrumental in increasing the scope and acceptance of this discipline Com- pression ... pixel value in the image In general, an observer searches for distinguishing features such as edges or textural regions and mentally combines them into recognizable groupings The brain then correlates ... visual quality of the two coded images might result in a marginal rating for the image in Fig 8.4(b) and a passable rating for that in Fig 8.4(c) a \ 1 Excellent An image of extremely high quality,

Ngày tải lên: 08/05/2014, 16:10

... an image based on abrupt changes in intensity, such as edges in an image The principal approaches in the second category are based on partitioning an image into regions that are similar according ... and b’ the intercept of the line containing both (Xs y,) and (x;, y)) in the xy-plane In fact, all points contained on this line have lines in pa- rameter space that intersect at (a’, b’) Figure ... slope-intercept represen- tation Instead of straight lines, however, the loci are sinusoidal curves in the p@-plane As before, Q collinear points lying on a line x cos 6; + ysin6; = p; yield Q sinusoidal

Ngày tải lên: 08/05/2014, 16:29

... training patterns, and a set of such patterns from each class is called a training set The process by which a training set is used to obtain decision func- tions is called learning or training In ... great interest in these machines, called perceptrons, was the development of mathematical proofs showing that perceptrons, when trained with linearly sep- arable training sets (i.e., training sets ... Matching by correlation We introduced the basic concept of image correlation in Section 4.6.4 Here, we consider it as the basis for finding matches of a subimage w(x, y) of size J X K within an image

Ngày tải lên: 08/05/2014, 16:48

... of image processing inwhich both the inputs and outputs of those processes are images In the scope of a seniorcourse, this usually means the material contained in Chapters 1 through 6 Depending ... 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 ... levels ofpoints inside the mask andoi the levels of the objects In addition, letSa denote theset of points in the averaging mask,Sothe set of points in the object, andSbthe set ofpoints in the mask

Ngày tải lên: 05/06/2014, 11:40

... symbolic image In this case, t h e general processing paradigm includes segmenting t h e original image, determining t h e connected regions of pixels having each Trang 7t h e regions, and applying ... as a fundamental preprocessing step in image processing T w o forms of such shrinking have been of greatest interest: (1) T h e image is transformed t o a "topologically equivalent" image ... base of X initially contains a single black seed pixel, t h e base of Y initially contains t h e binary image t o be labeled and t h e pixels in t h e remaining nodes of X a n d Y are initially

Ngày tải lên: 05/06/2014, 11:59

... possibilities offered by digital image processing algorithms in various fields Digital image processing is quite a multidisciplinary field, and therefore, the chapters in this book cover a wide ... December, 2011 Printed in Croatia A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from orders@intechweb.org Digital Image Processing, Edited ... appearing in the field In Fig.16 the number of laser probes increased to 11 for tracing mode It could be seen that as the number of laser probes increases the number of extra crossing points also increases

Ngày tải lên: 28/06/2014, 08:20

... possibilities offered by digital image processing algorithms in various fields Digital image processing is quite a multidisciplinary field, and therefore, the chapters in this book cover a wide ... December, 2011 Printed in Croatia A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from orders@intechweb.org Digital Image Processing, Edited ... appearing in the field In Fig.16 the number of laser probes increased to 11 for tracing mode It could be seen that as the number of laser probes increases the number of extra crossing points also increases

Ngày tải lên: 29/06/2014, 08:20

... original image (b) Its edge image Figure 1.4: Finding edges in an image Removing detail from an image For measurement or counting purposes, we may not beinterested in all the detail in an image ... This involves subdividing an image into constituent parts, or isolatingcertain aspects of an image: finding lines, circles, or particular shapes in an image, in an aerial photograph, identifying ... distinguishable image, with single integer grey values, indicating that em is being interpreted as a single greyscale image In fact the image emu.tif is an example of an indexed image, consisting of two matrices:

Ngày tải lên: 23/07/2014, 00:24

... the more interesting aspects of digital imaging. 2.1 Image Manipulation and Processing Traditionally, software for digital imaging has been targeted at either manip- ulating or processing images, ... Digital Images M columns N rows 0 0 u v M−1 N−1 I(u, v) Figure 1.6 Image coordinates. In digital image processing, it is common to use a coordinate system where the origin (u =0, v =0) lies in ... Linux, consult the ImageJ installation manual. 1 Digital Images For a long time, using a computer to manipulate a digital image (i. e., digital image processing) was something performed by only...

Ngày tải lên: 05/06/2014, 11:55

... to intensity images, namely images which express only the intensity of the signal as a single value at each point in the region. In certain instances, it can be better to display intensity images ... What is happening? Bẳimread(cell.tif ); %Read in 8 bit intensity image of cell Cẳimread(spine.tif ); %Read in 8 bit intensity image of spine Dẳimread(onion.png); %Read in 8 bit colour image subplot(3,1,1); ... Demonstrating the action of a linear operator S. Applying the operator (a blur in this case) to the inputs and then linearly combining the results produces the same result as linearly combining them...

Ngày tải lên: 05/06/2014, 12:05

... of image processing applications. This part describes the PIKS API and explains its use as a means of implementing image processing algorithms. Image processing programming exercises are included in ... xv linear processing techniques implemented by direct convolution and Fourier domain filtering. The next two parts of the book cover the two principal application areas of image processing: Image ... 664 PART 6 IMAGE PROCESSING SOFTWARE 679 20 PIKS Image Processing Software 681 20.1 PIKS Functional Overview, 681 20.2 PIKS Scientific Overview, 704 21 PIKS Image Processing Programming Exercises...

Ngày tải lên: 14/08/2014, 01:22

... xix 1 Introduction 15 1.1 What Is Digital Image Processing? 15 1.2 The Origins of Digital Image Processing 17 1.3 Examples of Fields that Use Digital Image Processing 21 1.3.1 Gamma-Ray Imaging ... Imaging Modalities Are Used 34 1.4 Fundamental Steps in Digital Image Processing 39 1.5 Components of an Image Processing System 42 Summary 44 References and Further Reading 45 2 Digital Image Fundamentals ... Imaging 23 1.3.3 Imaging in the Ultraviolet Band 25 1.3.4 Imaging in the Visible and Infrared Bands 26 1.3.5 Imaging in the Microwave Band 32 1.3.6 Imaging in the Radio Band 34 1.3.7 Examples in...

Ngày tải lên: 02/11/2012, 17:24