![]() |
![]() |
Brightness | |
A higher brighness results in a lighter image and vc. vs. | |
Threshold | |
Sets the threshold when a scanned pixel is displayed as black pixel. Only available in Line Art modes. | |
Contrast | |
At a higher contrast setting, the scanner emphasizes black and white, but reduces the number of gray shades. A lower contrast would result in a softer image. | |
Filter | |
|
|
Mirror | |
Mirrors the image. | |
Invert | |
Inverts the color channel (even in gray or bw). The result is a negative image. | |
Binary Filters | |
|
|
Dither | |
Simulates shades of gray by using certain patterns. May be used when the image should be printed on 1 bit devices (e.g. laser printers). | |
Gamma | |
|
|
Auto photo / letter | |
Only available with optional image processing unit. Detects photo (Dither) and text (Line Art) areas. If scanned at once it will apply the different scan modes automatically. | |
Dynamic Threshold | |
Only available with optional image processing unit. The scanned image is automatically binary coded with an appropriate threshold. The scanner discriminates a background color and decides which threshold to use. |
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.