Chapter IV. The TWAIN Interface
41
This can be useful in comparing color ranges between
the color values, and in identifying methods when
editing specific areas.
The first channel is the Master channel, the only
active channel for gray images; and for color images it
affects the three other channels evenly. The other 3
channels affect the Red, Green and Blue (RGB) color
in an image, respectively. Clicking on one of the color
channels activates it in the graph in the center of the
window.
Note:
Changes made to the individual color
channels will be added on top of changes
made to the Master channel.
Histogram
Histogram (figure 14) is a representation of
statistical data by rectangles: widths represent class
intervals and heights represent similar frequencies.
Make adjustments to the histogram only when the
color balance of your scanned image does not match
the original picture. Hint: We suggest enabling the
Auto Density option in the Preferences window and
not manually adjusting the histogram when not
encountering color depth discrepancies.
Figure 13. Color Channels
Содержание VividPro II
Страница 8: ...1 Chapter I Hardware Installation...
Страница 13: ...6 Chapter II Software Setup...
Страница 16: ...9 Chapter III Usage and Maintenance...
Страница 31: ...24 Chapter IV The TWAIN Interface...
Страница 56: ...49 Chapter V The Scanner Software...