Hardware Options AGFA

Every scanner offers some hardware features, which can be accessed via this panel. Of course this panel may be different with different scanners. But this one is which we use for the AGFA scanners. Depending on the selected color depth some of the features may be disabled.


Exposure Time
Larger values of the Exposure Time result in a higher resolution and brighter images. The Exposure Time value equals the integration time per line of the scanner. Be aware that higher values lead to a non linear increase of scan time.
 
Brightness
Brightness indeed acts like a brightness adjustment. This option is only enabled in connection with the Dither mode.
 
Contrast
Adjusts the contrast of scanned grayscale images. This option is only enabled in connection with the Dither mode.
 
High Light & Midtone & Shadow
Act together like a brightness Filter. They increase the intensity in dark (shadow) or bright areas (High Light). Midtone varies the center point.
 
Halftone Maps
As halftone mode you may only select which halftone map to be used use for scanning. The number of gray levels gives you an idea of how many different maps are used. The more grays you use the better the image quality could be.
 
Transparency Adapter
This option is only available, when a supported transparency adapter was found. Switching between those modes resets the selection rectangle. Be aware that also the rulers and object positions may change.
Normal
Transparency
Turns backlight off.
Turns backlight on.

Note: These features enhance or manipulate image data before they are transferred into the computer system. Therefore there is no way to revert this conversions, than to repeat the scan with different values. This may be faster than a software operation on images.


See also