A SIMPLE PARAMETRIC EQUATION FOR PSEUDOCOLORING GREY-SCALE IMAGES KEEPING THEIR ORIGINAL BRIGHTNESS PROGRESSION

Authors
LEHMANN TM KASER A REPGES R
Citation
Tm. Lehmann et al., A SIMPLE PARAMETRIC EQUATION FOR PSEUDOCOLORING GREY-SCALE IMAGES KEEPING THEIR ORIGINAL BRIGHTNESS PROGRESSION, Image and vision computing, 15(3), 1997, pp. 251-257
Citations number
6
Categorie Soggetti
Computer Sciences, Special Topics",Optics,"Engineering, Eletrical & Electronic","Computer Science Artificial Intelligence","Computer Science Software Graphycs Programming","Computer Science Theory & Methods
Journal title
Image and vision computing → ACNP
ISSN journal
02628856
Volume
15
Issue
3
Year of publication
1997
Pages
251 - 257
Database
ISI
SICI code
0262-8856(1997)15:3<251:ASPEFP>2.0.ZU;2-Q
Abstract
A new formalism to generate pseudocolor spectra is introduced. Therefo re, a parametric path in the RGB-color cube is derived to guarantee co nstant brightness progression. The resulting spiral-like curve allows the generation of various color spectra by adjusting the spiral's freq uency and phase. The formalism allows the determination of the resulti ng number of colors in dependency of both parameters. Therefore, these spectra are particularly useful to represent 12 bit data on common co mputer graphic adapters with 4096 displayable pseudocolor values inste ad of 256 displayable grey intensities. In this paper, the spectra are applied to medical X-ray images yielding an enhanced visualization of the diagnostic information.