color segmentation in digital image processing ppt

... 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

... 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: - ... 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

... 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 ... 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 ... the color gamut of today’s high-quality color printing devices Trang 8The boundary of the color printing gamut is irregular because color printing is a combination of additive and subtractive color

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

... 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 defined in Section ... 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

... background in image processing is mostly in the scope of material covered, in the sense that we simply go faster in a graduate course, and feel much freer in assigning independent reading In addition ... morphological image processing (Chapter 9) The material in this chapter begins a transition from methods whose inputs and outputs are images to methods in which the inputs are images, but the ... most interesting aspects of a course in digital image processing is the pictorial 190 Chapter 12 Problem Solutions training patterns of class ! have been multiplied by ¡1 If the classes are linearly

Ngày tải lên: 05/06/2014, 11:40

... Using Java packages the original material into a series of compact volumes, thereby supporting a flexible sequence of courses in digital image processing Tailoring the contents to the scope of individual ... “vocabulary” of digital image processing, starting from the basic concepts and elementary properties of digital images through simple statistics and point operations, fundamental filtering techniques, ... and Image Processing 4, 248–270 (1975) 250 Bibliography [11] B Eckel “Thinking in Java” Prentice Hall, Englewood Cliffs, NJ, fourth ed (2006) Earlier versions available online [12] N Efford “Digital

Ngày tải lên: 05/06/2014, 11:55

... t label by t h e segmentation process T h e result is called a symbolic image In this case, t h e general processing paradigm includes segmenting t h e original image, determining t h e connected ... 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 ... 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 t h a

Ngày tải lên: 05/06/2014, 11:59

... 2) contain the signatures of the motions taking place in the subsequence being examined The number of nonzero areas gives an indication of the number of moving entities in the scene In practice, ... always points Trang 8Frame 30(a) Mean shift color segmentation for frame 30 (b) Figure 4: Mean shift color segmentation (a) Original frame (b) Color-segmented frame in the direction of gradient increase, ... cameras, in order to capture its position in each video frame Thus, localizing and extracting it is not very meaningful in many of the sports videos used in prac-tice After separating the objects in

Ngày tải lên: 22/06/2014, 06:20

... 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: 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 slightly, to make the edges clearer. (a) The original image (b) Its edge image Figure 1.4: Finding edges in an image Removing detail from an image. For measurement or counting ... medical imaging. Even if the picture is not immediately recognizable, it will not be just a random blur. 1.2 What is image processing? Image processing involves changing the nature of an image in order ... shown in figure 1.14 However, such a plot is of limited use to us in terms of image. .. subdividing an image into constituent parts, or isolating certain aspects of an image: finding lines,

Ngày tải lên: 23/07/2014, 00:24

... 424 Binary Image Shrinking, Thinning, Skeletonizing and Thickening, 431 Binary Image Generalized Dilation and Erosion, 4 42 Binary Image Close and Open Operations, 453 Gray Scale Image ... Digital Image Processing is offered to the image processing community Why? One reason is because advances in the theoretical aspects of image processing technology continue at a ... Overview, 704 21 PIKS Image Processing Programming Exercises 21 .1... Processing Exercises, 725 Image Enhancement Exercises, 726 Image Restoration Models Exercises, 728 Image Restoration

Ngày tải lên: 14/08/2014, 01:22

... components of an NTSC receiver primary color image This color image is printed in the color insert If printed properly, thecolor image and its monochromatic component images will appear to be of “nor-mal” ... 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 ... point nonlinearities FIGURE 3.5-7 Linear RGB components of the dolls_linear color image See insert for a color representation of this figure Trang 15To achieve dark black printing without using

Ngày tải lên: 14/08/2014, 01:22

... Trans Image Processing, 6, 7, July 1997, 901–932. Trang 4of two-dimensional transforms as an alternative means of achieving convolutionalprocessing more efficiently.Trang 66 Digital Image Processing: ... representa-in subsequent sections 6.2 GENERALIZED TWO-DIMENSIONAL LINEAR OPERATOR A large class of image processing operations are linear in nature; an output imagefield is formed from linear combinations ... SAMPLED IMAGE SUPERPOSITION AND CONVOLUTION Many applications in image processing require a discretization of the superpositionintegral relating the input and output continuous fields of a linear

Ngày tải lên: 14/08/2014, 02:20

... complement numbering (a) Linear image scaling (b) Linear image scaling with clipping (c) Absolute value scaling FIGURE 10.1-2 Image scaling methods  250 IMAGE ENHANCEMENT (a) Linear, full range, ... image analysis Digital Image Processing: ... and present methods of point and spatial image restoration The final chapter of this part considers geometrical image modification 10 IMAGE ... Processing, ” Report USCIPI 950 , University Southern California, Image Processing Institute, January 1980 PART 4 IMAGE IMPROVEMENT The use of digital processing techniques for image

Ngày tải lên: 14/08/2014, 02:20

... Filtering Based on Space Filling Curves,” IEEE Trans Image Processing, 6, 7, July 1997, 1025–1037. 44 R Lukac et al., “Vector Filtering for Color Imaging,” IEEE Signal Processing Magazine, 22, ... POINT NONLINEARITY CORRECTION 33312.1.2 Display Point Nonlinearity Correction Correction of an image display for point luminance nonlinearities is identical inprinciple to the correction of point ... 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,

Ngày tải lên: 14/08/2014, 02:20

... source image. Again, interpolation is required to obtain . Rotation of a source image about an arbitrary pivot point can be accomplished by translating the origin of the image to the pivot point, ... Aliasing in Multipass Image Rotations,” IEEE Trans Image Processing, ... Intelligence, McGraw-Hill, New York, 19 87 REFERENCES 4 17 19 W K Pratt, Image Processing and Analysis Using Primitive ... Elements,” in Selected Topics in Signal Processing, S Haykin, Ed., Prentice Hall, Englewood Cliffs, NJ, 1989 20 M Vrhel, “Color Image Resolution Conversion,” IEEE Trans Image Processing, 14,

Ngày tải lên: 14/08/2014, 02:20