I use an older version of the software, the test looks something like this (see above) You should let your monitor warm up a good 30 minutes or so before running the Nokia test. I am still curious about my comment above regarding the dark tinted thing. and it didnt take into effect the ATI cards settings either. I tried the nokia thing and for the brightness test I wasnt able to get all the boxes with my monitor settings on max.
I used it in the past with my old 17" that was heavily blue-tinted and too dark. My NVidia card has a setting called "Color Correction" for doing all this.
#Mpc media player classic lighten picture software
There are also software adjustments you can do to compensate, like pushing up the gamma or playing with the R-G-B balance. Incidentally.I forgot to mention a modern display typically has on-screen-menus that let you make a number of adjustments without the need for internal tinkering. It's a simple fix, but do NOT open your monitor! Again, I can't stress how careful you must be. You need special tools and have to take precautions. THERE ARE HIGH-VOLTAGES WHICH CAN CAUSE DEATH! Yes, even with the monitor unplugged, it can store up to 50,000 volts or more and zap you.
WARNING: DO NOT OPEN THE MONITOR OR ATTEMPT TO ADJUST THESE BY YOURSELF UNLESS YOU KNOW WHAT YOU'RE DOING. It'd be found on the metal base of the flyback transformer. Just the slightest turn (a tiny pinch) can completely restore the monitor brightness. For brightness there's a potentiometer called "SCREEN". There are voltage adjustments for fixing these things. NTest from Nokia displays a good test pattern for checking this out, and making adjustments.įocus/sharpness is another thing that can go. Especially if most of the darker greyscales are invisible. This also let's you check out brightness. I find the best way to check this out is look at a greyscale test-pattern.you know, pure white gradually fading to pure black, and all the grey levels in-between. while still displaying a normal colored image, everything might have a slight yellowish, blueish or purplish pending on which gun weakens you want proper balance of red, green and blue). Another problem is the voltage to the color guns can drift which causes the entire image to be heavily tinted to one specific color (i.e. With age, often CRT's can get too dark, or even too bright. Gamma is usually the first adjustment I make when an image has a lot of light and dark areas and I only want to enhance the dark areas. If you increase gamma the ground shadows will become darker, as expected, but the sky and clouds will be unaffected.ĭecreasing gamma will lighten the dark ground scene enhancing the details while the sky, again, remains unchanged. Gamma, on the other hand, will only effect the ground scene. When you decrease gamma, the black pixels move toward gray (64), but again, the white pixels stay where they are.Īn easy way to watch this in action is to find a picture of a bright sky with puffy clouds and a dark shadowed ground scene.Īs you increase contrast the sky and clouds will blend together until the sky is white and starts to flare, while the shadowed ground will become black and indistinguishable.Īs you decrease contrast the sky and ground will just become more washed out without enhancing any of the detail. Gamma only effects the black pixels, so when you increase gamma the black pixels move toward 127, but the white pixels stay where they are. Visualize the whites and blacks divided in half with the whites occupying 0-63 and the blacks 64-127.Īs you increase contrast the whites will tend to flare, all the whites moving toward 0, and the blacks will become blacker, moving towards 127, until all detail is lost.Īs you decrease the contrast the whites move towards gray (63) and the blacks also move towards gray (64) until you end up with a kinda washed out picture. The greater the contrast the greater the whites are white and the blacks are black. Very briefly (well, it started off that way ), contrast is the difference between the white pixels and black pixels. Not to mention a computer teacher I had once told me never to touch the gamma settings!! lolĪny explaination on gamma, and even contrast would be nice just to make sure I'm on the same planet. not exaclty sure what gamma does so I kinda stayed away from it. Hmm, I have adjusted the gamma sometimes.
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