Canon DR-6030C - Manual (Page 73)

Software Setup 67
Chapter 3
☞ Depending on the application program, operation may become unstable
when [Auto Color Detection] is enabled. In that case, [Auto Color
Detection] should be disabled.
☞ When using an application that supports the MultiStream function (such as
CapturePerfect), if [Auto Color Detection] is selected, the MultiStream
function is disabled.
[Black and White]
Use this mode to scan text and line drawing documents as black and while
(binary) images.
[Error Diffusion]
Use this mode to scan documents containing photos as black and white
(binary) images.
[Advanced Text Enhancement]
Use this mode to scan documents with a dark or non-uniform (pattern)
background.
☞ If the background is uniform it is removed where it surrounds the text.
☞ If the background is non-uniform, such a pattern, it is processed to enhance
text readability.
[Advanced Text Enhancement II]
Use this mode to scan documents with a light uniform background and low-
contrast text.
☞ The background in tight spaces around text may not be removed.
☞ Documents with low-contrast text can be made more readable by adjusting
Contrast on the [Brightness] tab sheet.
☞ If the background is non-uniform, such a pattern, the background remains
visible in the image, and text may be hard to read.
[High-Speed Text Enhancement]
This mode optimizes processing speed by performing background processing
within the scanner, and is good for scanning documents with light background
and dark text.
☞ If the text and background in a document have nearly the same density, the
text may be hard to read.
☞ Areas with uniform background may appear as non-uniform white in the
image.
☞ Because background processing is performed within the scanner, scanned
images are more susceptible to lines appearing due to dirt on the scanning
table glass. In cases where this may be a problem, try scanning again after
cleaning the scanner glass, or select one of the [Advanced Text
Enhancement] or [Advanced Text Enhancement II] modes instead.
[256-level Gray]
Scans documents such as photos as 256-level grayscale images.
[24-bit Color]
Scans documents such as color photos as full-color images.