Thiemos Archiv
- Friday, 2006-03-31 10:18
- »[Grayscale] transforms a 24-bit, three-channel, color image to an 8-bit, single-channel grayscale image by forming a weighted sum of the red, green, and blue components. The formula used in the GIMP is Y = 0.3R + 0.59G + 0.11B; this result is known as luminance.« (aus Grokking the GIMP). »These weightings are often expressed in three-digit precision as 29.9% red, 58.7% green and 11.4% blue. Did you ever wonder where these weightings came from?« (Bruce Lindbloom).
Kommentare zu diesem Beitrag können per E-Mail an den Autor gesandt werden.