DocumentCode
1381262
Title
A ghost in a snowstorm [computer graphics]
Author
Blinn, James F.
Author_Institution
Microsoft Res., USA
Volume
18
Issue
1
fYear
1998
Firstpage
79
Lastpage
84
Abstract
There is a storm cloud growing on the horizon of the digital convergence between computer graphics and television/graphic arts. Computer graphics and image processing assume that pixel values are linearly related to light intensity. A typical video or paint image, however, encodes intensity nonlinearly. Most image manipulation software does not take this into account and just does arithmetic on the pixel values as though they were linearly related to light intensity. This is obviously wrong. The question is, how wrong, and for what pixel values is the problem worst and best? The author presents a review of the basic concepts
Keywords
brightness; computational geometry; computer graphics; image processing; computational geometry; computer graphics; graphic arts; image manipulation software; image processing; light intensity; paint image; pixel values; television; video image; Arithmetic; Art; Clouds; Computer graphics; Convergence; Image processing; Paints; Pixel; Storms; TV;
fLanguage
English
Journal_Title
Computer Graphics and Applications, IEEE
Publisher
ieee
ISSN
0272-1716
Type
jour
DOI
10.1109/38.637309
Filename
637309
Link To Document