ScanTek Manual

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 Look-Up Table Window

 This window enables you to watch and set the look-up tables necessary for
 the download to the scanner.


     .-----------.255  light  With a look-up curve it is possible to remap the
     |        ./ |            scanned image data. It is possible to lighten or
     |       /   |            darken an image. This kind of technique is very
     |      /    |^     ^     important since every scanner has a specific color
     |     /     ||     |     characteristic. Several scanners tend to scan the
     |    /      ||     |     image slightly too dark with the default settings.
     | --'       |
     |/          |            This deviation depends on the electronical and
     `-----------'0    dark   optical calibration of the scanner hardware.
      0   -->   255           With a color look-up table is is possible to
                              compensate this deviation. The Look-Up Type
     dark -->  light          "Gamma" leads normally to the best results.
                              You should test various gamma values to get
                              the best curve for your scanner.


 The look-up table will be sent to the scanner who recalculates his scanned
 data by use of this color look-up table.

 If the Look-Up Type in the  Look-Up Control Window  is set to
 Freestyle than it is possible to manipulate the current look-up curve with
 the mouse. You should move the mouse slowly to get a continous curve.

 It is a good practice to predefine a curve by using "Normal", "Gamma" or
 "Step" and than modify it, if necessary, with "Freestyle".

Do you have any suggestions or questions about ScanTek then email to scantek@gmx.de