U S A Flag
Arizona Flag
A R R L
Membership
For New Hams!
A R R L
VE Exams by Zipcode
Q R Z
Callsign Lookup

Template:Monitor

From The WB7TJD Wiki

Jump to: navigation, search

Check your monitor's Contrast and Black-Level settings

Below are four video display tests, the first in monochrome, the second in red, followed by green and lastly, blue.  There are 16 shades of gray, ranging from black to white.  Similarly, 16 shades of red, ranging from black to the brightest red.

You should be at least able to barely perceive the first level of light above black, and each of the brightness levels should be distinct fom the one next to it.  In a perfect scenario, each shade should be equal steps brighter than the one before it.

This display test will show if there is too much contrast -- either the bottom two or three levels are black or the top two or three levels are at maximum brilliance.  Some LCD displays do not have the color depth necessary to display a full range of 16 shades of light in each of white, red, green and blue.

It says here, that there are 16 shades of light, with black being counted four times, as the darkest shade of each color and of white.  In essence, there are 61 shades of light here, with 15 each of red, blue, green and white, plus black.  I refer to monochrome here as "white," and maybe "shades of gray" would be a better choice of words.

But then there comes the argument, is it "gray" or is it "grey?!"  In that dispute, my spell checker in Firefox calls "grey" wrong, but I can fix that with an addition to the dictionary.  I prefer the "grey" spelling myself!

Larry, WB7C

Warning: The Video check could not be embedded.

Subscribe to wb7tjd

Powered by us.groups.yahoo.com

Powered by WebRing.