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diff --git a/doc/links_cal/calibration.html b/doc/links_cal/calibration.html new file mode 100644 index 0000000..7dd0b9f --- /dev/null +++ b/doc/links_cal/calibration.html @@ -0,0 +1,68 @@ +<!doctype html public "-//W3C/DTD HTML 3.0//EN"> +<html> +<head><title>Links Calibration</title></head> +<body bgcolor="#000000" text="#ffffff"> +<h1>Links Calibration Procedure</h1> +<p>To get a flawless picture while browsing the Web with Links, +you have to perform the described procedure step-by-step. A test pattern +for the adjustment follows: +<br><center><img src="test_pattern.png" width=480 height=480 +alt="Monoscope"></center> + +<br><center><table border=1> +<tr><td>1.</td><td>Set "Setup -> Video options -> User gamma" to +1.0</td></tr> +<tr><td>2.</td><td>Switch off "Setup -> Video options -> Aspect +correction on".</td></tr> +<tr><td>3.</td><td>Set "View -> Html options -> Scale all images by (%)" +to 100.</td></tr> +<tr><td>4. <img src="picture-crank-0.png" alt="Contrast to 0"></td><td>Turn +"Contrast <img src="picture-icon.png" alt="Contrast">" to it's +minimum.</td></tr> +<tr><td>5. <img src="black-control-rocking.png" alt="Set brightness"></td><td>Set " Brightness <img +src="black-icon.png" alt="Brightness">" to the highest level where black +just still stays black. <img src="elbow.png" alt="Find the elbow"> The gradient (where light +output is proportional to horizontal offset) in +the lower part of the image may assist you to perform this task or you may +diminish horizontal size of the picture on your monitor's controls and +check at the edge of the screen.</td></tr> +<tr><td>6. <img src="picture-crank-up.png" alt="Set contrast"></td><td>Set "Contrast +<img src="picture-icon.png" alt="Contrast">" as you like it.</td></tr> +<tr><td>7.</td><td>Adjust "Setup -> Video options -> Red, +Green, Blue display gamma" until the inside of the test pattern looks +like this: <img src="adjusted.png" alt="The center of the monoscope should look like this"> Red gamma influences the red field, +green gamma green field, blue gamma blue field. When right part of +particularly coloured field is too dark, increase the appropriate gamma. When the right +part is too light, decrease the gamma. The white +field is there for confidence only. You shall not see the fringes in left +parts of the fields. If you see them, go farther from the screen or take +off glasses.</td></tr> +<tr><td>8.</td><td>Set "Setup -> Video options -> User +gamma" according to recommended setting that are provided in the +dialog box.</td></tr> +<tr><td>9.</td><td>Switch on "Setup -> Video options -> Aspect +correction on".</td></tr> +<tr><td>10.</td><td>Adjust you picture's size so that it just fits on the +screen</td></tr> +<tr><td>11.</td><td>Adjust "Setup -> Video options -> Aspect +ratio" so that the white circle is perfectly circular.</td></tr> +<tr><td>12.</td><td>If you are using a picture tube monitor, set +"Setup -> Video options -> Display optimization for CRT". +If you have got a flat panel LCD monitor, choose between "Setup -> +Video options -> Display optimization for LCD (RGB)" and "Setup -> +Video options -> Display optimization for LCD (BGR)" , whichever looks +better.</td></tr> +<tr><td>13.</td><td>Save your settings with "Setup -> Save +options".</td></tr> +<tr><td>14.</td><td>Do not touch "Brightness <img +src="black-icon.png" alt="Brightness">" any more. You may adjust "Contrast <img +src="picture-icon.png" alt="Contrast">" whenever you want.</td></tr> +</table></center> +<h1>Recommendation</h1> +<p>If you have got an X Server that supports built-in software gamma +correction, switch this gamma correction completely off. You will get a +better picture. To switch the gamma correction off, edit the configuration file and set all "gamma" +values to 1.0. After doing that, restart X Server, run Links and calibrate +Links and the monitor. +</body> +</html> |