Thanks for the info...Now to go from here.... > -----Original Message----- > From: owner-u2-us...@listserver.u2ug.org [mailto:owner-u2- > us...@listserver.u2ug.org] On Behalf Of Bob Rasmussen > Sent: Tuesday, May 26, 2009 3:51 PM > To: u2-users@listserver.u2ug.org > Subject: RE: [U2] pcl imaging question...(clarification) > > The PCL color eventually results in a color raster (bitmap), which is a > rectangular array of pixels, each having a certain color. If this needs > to > be printed on a monochrome printer, something (usually the printer > driver) > first converts each pixel to its grayscale equivalent. This is done by > assigning a certain brightness weight to each of the red, green, and > blue > components of the color. Because our eyes are less sensitive to blue, > it > gets less weight in this process.
Like seeing colors on a black and white TV. > > Then the driver has to make grays out of a bunch of dots that are > either > black or white. It does this by assigning a pattern of black and white > dots. This is called "dithering", and there are several methods that > can > be used. Some printer drivers let you choose your dithering. > > Regards, > ....Bob Rasmussen, President, Rasmussen Software, Inc. > Thanks ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
