Shel Belinkoff wrote: > OK, let's look at it this way. Let's say we have a pixel, which we'll > equate to an artist's canvas, and it's eight bits, and each bit is the > equivalent of a can of paint of a different color. If the artist - or > in this case the scanner - wants to paint a picture on the canvas, there > are only so many colors that he can choose from, or mix. If each pixel > had 16 bits, or 16 colors of paint, more colors could be mixed, and so > on for 24 bits, 32 bits, etc. The more cans of different colors of > paint there are, the more colors there are that can be created, and > colors can be "blended" to produce smoother transitions. Is this > something like bit depth? > > As a child I recall that Crayola, a company that made crayons, sold the > crayons in boxes that contained more or less crayons - there were eight > to a box, sixteen, twenty-four, and so on, up to the biggest box, which, > I believe, contained sixty-four crayons. All the kids wanted the > biggest box because they could draw in the most colors, and because some > colors were very close to one another. There might be several shades of > red, or blue, or green, instead of just one of each. So, a box of > sixty-four crayons might - in this child's understanding - equate to a > pixel with greater bit depth. > > Am I getting close? > .0
That's pretty much the way it works. And it's more than you need to know to get a good scanner. Paul - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
