Image and Video Processing Libraries in Ptolemy II by ... - CiteSeerX

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3.2.2 JAIBorder Operations occasionally will shrink an image (for example, median filtering). This is sometimes undesirable. To prevent shrinkage, an image can be bordered before undergoing such an operation. The JAIBorder Actor offers several different border types: Constant c c c c c c c c c c c c c c c c 1 2 3 c c c c 4 5 6 c c c c 7 8 9 c c c c c c c c c c c c c c c c The border is filled with a supplied constant. If there are not enough constants for each band, then the first constant will be used to fill the border of each band. Copy 1 1 1 2 3 3 3 1 1 1 2 3 3 3 1 1 1 2 3 3 3 4 4 4 5 6 6 6 7 7 7 8 9 9 9 7 7 7 8 9 9 9 7 7 7 8 9 9 9 The border pixels are copies of the edge pixels. 28
Reflect 5 4 4 5 6 6 5 2 1 1 2 3 3 2 2 1 1 2 3 3 2 5 4 4 5 6 6 5 8 7 7 8 9 9 8 8 7 7 8 9 9 8 5 4 4 5 6 6 5 The border pixels are filled with mirrored copies of an image. This border is useful when you want to avoid a discontinuity between the image and the border. Wrap 5 6 4 5 6 4 5 8 9 7 8 9 7 8 2 3 1 2 3 1 2 5 6 4 5 6 4 5 8 9 7 8 9 7 8 2 3 1 2 3 1 2 5 6 4 5 6 4 5 The border pixels are filled with copies of the image. This border is particularly useful for images that are periodic in nature, e.g. the Fourier Transform of an image. Zero 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 0 0 0 0 4 5 6 0 0 0 0 7 8 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 The border is filled with zeroes in every band. 29
Page 1: Image and Video Processing Librarie
Page 4 and 5: 3.4.2 JAIBoxFilter . . . . . . . .
Page 6 and 7: List of Figures 1.1 Screenshot of V
Page 9 and 10: Acknowledgements The following proj
Page 11 and 12: Chapter 1 Introduction 1.1 Ptolemy
Page 13 and 14: We decided that there was a need fo
Page 15 and 16: of the bands. The values in an imag
Page 17 and 18: Figure 2.1: Non JAI Image Processin
Page 19 and 20: Figure 3.1: The JAI actor library i
Page 21 and 22: P1 #comments 10 10 1001001110 10010
Page 23 and 24: 3.1.2 JAIConstant The JAIConstant a
Page 25 and 26: JAIPNGWriter The JAIPNGWriter diffe
Page 27: Figure 3.5: An image about to under
Page 31 and 32: sponds to a shift upwards. A value
Page 33 and 34: images in this report were scaled u
Page 35 and 36: Figure 3.7: An example of how to se
Page 37 and 38: Figure 3.8: Mask shapes for median
Page 39 and 40: 3.5.1 JAIDFT 0 0 -1 0 1 0 0 0 0 -1
Page 41 and 42: 3.5.3 JAIMagnitude, JAIPhase The JA
Page 43 and 44: 3.8.3 DoubleMatrixToJAI The DoubleM
Page 45 and 46: Figure 4.2: A simple model showing
Page 47 and 48: Figure 4.5: The initial guess. Figu
Page 49 and 50: Figure 4.9: The image after fifteen
Page 51 and 52: Figure 4.12: The image after being
Page 53 and 54: Figure 4.14: Median Filtering on a
Page 55 and 56: Chapter 5 Video Processing Platform
Page 57 and 58: Chapter 6 JMF Actor Library The fol
Page 59 and 60: 6.1.4 ColorFinder The ColorFinder a
Page 61 and 62: Chapter 7 Video Processing Examples
Page 63 and 64: Chapter 8 Future Work Sun has recen
Page 65 and 66: Chapter 9 Appendix The following is
Page 67 and 68: * @param name The name of this acto
Page 69 and 70: } if((data[i][j] > min) && (data[i]

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