I.R.I.S. Readiris 14 for Windows User Guide - Manual (Page 62)

Readiris TM 14 – User Guide
67
ADF
ADF stands for Automatic Document Feeder. This option is
available when your scanner is equipped with an automatic
document feeder. Select this option when you want to scan stacks of
documents all at once.
Invert
Sometimes Twain scanners display white text on a black
background when scanning documents in black-and-white. To
reverse the color of text/background on your documents, select the
Invert option.
Digital camera
When you are using a Twain compatible digital camera, you can
use your camera directly as scan source. To do so, select the Digital
camera option. Readiris will then use special recognition routines
to process the digital camera images.
See the section How to process digital camera images for tips on
using a camera as scan source.
Process as 300 dpi
Select the option Process as 300 dpi when you are processing
images of an incorrect or unknown resolution. The images will be
processed as if they had a 300 dpi resolution.
Smoothen color images
This option is selected by default. It improves the appearance of
color and grayscale images in your documents.
Note: with some scanners, image smoothening is required to
recognize color and grayscale images successfully.