15
Off:
this is the default. No color content will be detected.
Low
: documents requiring only a small amount of color to be saved as
color or grayscale images. Used for capturing documents that are
primarily black text with small logos, or contain small amounts of
highlighted text or small colorful photos.
Medium
: documents require more color, as compared with the Low
option, before they are saved as color or grayscale images.
High
: documents require more color, as compared with the Medium
option, before they will be saved as color or grayscale images. Used for
distinguishing documents containing medium- to large-size colorful photos
from plain black text. Photos with neutral colors may require adjustments
to the Color Threshold or Color Amount values in order to be captured
correctly.
Custom
: allows you to manually adjust the
Color Amount
and/or
Color
Threshold
.
When setting Auto Color Detect values, it is suggested that you start with
the
Medium
option and scan a typical job set. If too many documents
were returned as color/grayscale vs. black and white, then change to the
High
option and re-run the job. If too few documents were returned as
color/grayscale vs. black and white, then change to the
Low
option and
re-run the job. If none of these options provide the desired result, select
the
Custom
option to manually adjust Color Amount and/or Color
Threshold.
Color Amount
: the amount of color that needs to be present in a
document before it will be saved as either color or grayscale. As the value
of Color Amount increases, more color pixels are required. Valid values
are 1 to 200.
Color Threshold
: the color threshold or intensity (i.e., pale blue vs. dark
blue) at which a given color will be included in the color amount
calculation. A higher value indicates that a more intense color is required.
Valid values are 0 to 100.
Learn
— allows you to calculate your settings based on representative color
documents scanned. Before selecting
Learn
, place at least 5 representative
color documents in the input elevator. The documents will be scanned and
analyzed to determine the recommended Color Amount.
The
Color Amount
and
Color Threshold
sliders will be updated automatically. If
these values do not provide the desired results with your document set, you may
need to manually adjust the
Color Threshold
.
