Projections Along General Contours

  • Jorge J. C. Sanz
  • Eric B. Hinkle
  • Anil K. Jain
Part of the Springer Series in Information Sciences book series (SSINF, volume 16)

Abstract

The powerful CIG in Fig. 3.1 can also be used to generate ramps which are not linear, along with other more sophisticated patterns. For example, the operation \(\sqrt {{c_1}{{(i - {i_1})}^2} + {c_2}{{(j - {j_1})}^2}} \) , where c1, c2, il, and jl are constants, is suitable for generating elliptical ramps, and is specifically useful for drawing circular multi-tone masks (see Sects. 5.4 and 5.5). Another example is the operation \(c\sqrt {ij} \) , where c is a constant, which yields hyperbolic ramps.2 In this case, it is necessary that the CIG be capable of taking integer products between the image coordinates.

Keywords

Expense Radon Rounded 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • Jorge J. C. Sanz
    • 1
  • Eric B. Hinkle
    • 1
  • Anil K. Jain
    • 2
  1. 1.Computer Science DepartmentIBM Almaden Research CenterSan JoseUSA
  2. 2.Electrical and Computer Engineering DepartmentUniversity of California at DavisDavisUSA

Personalised recommendations