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APPLICATIONS OF METEOSAT SECOND GENERATION (MSG)

This document, authored by Jochen Kerkmann from EUMETSAT, serves as an introduction to RGB colors utilized in the Meteosat Second Generation (MSG) applications. It explains the concept of RGB colors, which comprise red, green, and blue, and how they combine to create other colors. The text covers RGB color representation, including decimal and hexadecimal notation, and provides examples of specific colors and their RGB values. The discussion also briefly touches on alternative color models like CMYK and HSV, essential for understanding color dynamics in meteorological imagery.

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APPLICATIONS OF METEOSAT SECOND GENERATION (MSG)

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  1. APPLICATIONS OF METEOSAT SECOND GENERATION (MSG) RGB IMAGES: PART 02 INTRODUCTION TO RGB COLOURS Author: Jochen Kerkmann (EUMETSAT) kerkmann@eumetsat.de

  2. PART 2: INTRODUCTION TO RGB COLOURS

  3. Definition of RGB Colours Red, Green, Blue: The three colours of light which can be mixed to produce any other colour. Coloured images are often stored as a sequence of RGB triplets or as separate red, green and blue overlays though this is not the only possible colour representation*. These colours correspond to the three "guns" in a colour cathode ray tube and to the colour receptors in the human eye. • * Other commonly used colour representations are: • The CMYK colour model (Cyan Magenta Yellow and Key (black)) • The HSV colour model (Hue Saturation Value)

  4. The Colour Circle

  5. RGB Colour Values RGB colors are defined using a decimal or hexadecimal notationfor the combination of Red, Green, and Blue color values (RGB).The lowest value that can be given to one light source is 0 (hex #00).The highest value is 255 (hex #FF).

  6. More RGB Colour Values Examples of colours (names) and 8-bit RGB values: • Red 255, 0, 0 • Fuchsia 255, 0, 255 • Skyblue 153, 206, 235

  7. RGB Colour Names A collection of color names are supported by Internet Browsers.Below, are some examples:

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