maria petrou, costas petrou - image processing the fundamentals 2nd

... 777 Index 781 Image Processing: The Fundamentals Image Processing: The Fundamentals, Second Edition Maria Petrou and Costas Petrou © 2010JohnWiley&Sons,Ltd. ISBN: 97 8-0 -4 7 0-7 458 6-1

Ngày tải lên: 05/06/2014, 12:00

... 7.16 (a) Original image. (b) The gradient magnitude image : the brighter the pixel, the higher the value of the gradient of the image at that point. (c) After non-maxima suppression: ... x0 y0 wa h6" alt="" 6 Image Processing: The Fundamentals How do we do Image Processing? We perform Image Processing by using Image Transformations. Image Transform...

Ngày tải lên: 05/06/2014, 11:50

... Introduction Moderndigitaltechnologyhasmadeitpossibletomanipulatemultidimensionalsignalswithsystems thatrangefromsimpledigitalcircuitstoadvancedparallelcomputers.Thegoalofthismanipulation canbedividedintothreecategories: •ImageProcessing imagein→imageout •ImageAnalysis imagein→measurementsout •ImageUnderstanding imagein→high-leveldescriptionout c  1999byCRCPressLLC • ... mean that if the p...

Ngày tải lên: 27/01/2014, 03:20

... is the side dimension of the image (assumed square since the viewing screen is square) impinging on the image plane, and the 80 mm refers to the size of the viewing screen, as described in the ... by this pixel-by-pixel sum. The operator H computes the sum of pixel values is a given neighborhood. Then, H(aS 1 + bS 2 ) means: (1) multiplying the pixels in each of the...

Ngày tải lên: 05/06/2014, 11:40

... performs these three tasks. The first task is image disk I/O, and the first item needed is an im- age file format. The file format specifies how to store the image and infor- mation about itself. The software ... out_name); 4 get _image_ size(in_name, &height, &width); 5 the _image = allocate _image_ array(height, width); 6 read _image_ array(in_name, the _image) ; 7 cal...

Ngày tải lên: 05/06/2014, 12:03

... Important note: Color image processing is not merely the processing of 3 monochrome channels!!! • Yet => some generalizations and applications of monochrome (grey-level) image processing can be ... reduced color space, with the smallest possible number of colors (the representative image colors), so that the perceived difference between the quantized image and ori...

Ngày tải lên: 24/04/2014, 13:36

... Continuous If the Nyquist rate is met, then a discrete-time signal fully charac- terizes the continuous-time signal from which it was sampled. On the other hand, if the Nyquist rate is not met, then the ... continuous-time signal to a discrete-time signal (C/D converter); (2) the processing through a discrete-time system; and (3) the conversion of the output discrete- time s...

Ngày tải lên: 05/06/2014, 11:40

... button- and slider-enabled selection of the various parameters that control the algorithms, and with before-and-after image win- dows that show the visual results of the image processing algorithms ... context of the Sampling Theorem. 1.6 QUANTIZED IMAGES The other part of image digitization is quantization. The values that a (single-valued) image takes are usually int...

Ngày tải lên: 05/06/2014, 11:41

Ngày tải lên: 05/06/2014, 12:05

... previously, the pixel value range is bounded by the bit resolution of the image and such images are stored as N-bit integer images with a given format. . RGB or true-colour images are 3-D arrays ... discussed in the text. Matlab CODE: The Matlab code to all the examples in the book as well as the code used to create many of the figures are available in the Matlab code sec...

Ngày tải lên: 05/06/2014, 12:05