maria petrou, panagiota bosdogianni - image processing the fundamentals

... 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

... 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

... Square -8 -6 -4 -2 0 2 4 6 8 -2 -4 -6 -8 4 3 2 1 0 8 6 4 2 0 colrow a. Pillbox -8 -6 -4 -2 0 2 4 6 8 -2 -4 -6 -8 4 3 2 1 0 8 6 4 2 0 colrow b. Gaussian -8 -6 -4 -2 0 2 4 6 8 -2 -4 -6 -8 4 3 2 1 0 8 6 4 2 0 colrow d. ... (c), determined by the parameter, k. A value of k = 2 was used to create this image. -k/8-k/8...

Ngày tải lên: 13/09/2012, 09:50

... grey and variations on green and purple. The colour wheel Colour control 21BD1AF1-BA6 2-4 ACF-868F-588A423B525B THE COLOUR WHEEL 17 21BD1AF1-BA6 2-4 ACF-868F-588A423B525B GETTING STARTED 18 Coloured ... manipulate any other way. We show here the variety of ways of holding these implements. You may need to practise these different ways to become good at them. 1. 2. 3. 4. 21BD1AF1...

Ngày tải lên: 13/09/2012, 14:19

... 335 x ■ Contents GONZFM-i-xxii. 5-1 0-2 001 14:22 Page x GONZFM-i-xxii. 5-1 0-2 001 14:22 Page xxii 6.8 Noise in Color Images 339 6.9 Color Image Compression 342 Summary 343 References and Further Reading ... 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 22 1.3.2 X-...

Ngày tải lên: 02/11/2012, 17:24

... called image understanding) is in be- tween image processing and computer vision. There are no clear-cut boundaries in the continuum from image processing at one end to computer vision at the other. ... 148 viii ■ Contents GONZFM-i-xxii. 5-1 0-2 001 14:22 Page viii 4.2 Introduction to the Fourier Transform and the Frequency Domain 149 4.2.1 The One-Dimensional Fourier...

Ngày tải lên: 02/11/2012, 17:24

Ngày tải lên: 02/11/2012, 17:25