One can specify up to 100 color adjustment points, and the adjusted colors will be
displayed on the adjustment color list. The adjustment color list displays and their
functions are as follows:
• Colors before and after adjustment
• Apply/Do not apply checkbox
• Range of effect overlap indicator
The range of effect overlap indicator is displayed if the range of effect of an adjusted
color overlaps the range of effect of another adjusted color. Colors in overlapping ranges
are displayed in gray on the color wheel and adjusted using an aggregated value for the
respective adjustments. To avoid overlapping
ranges, one must reset the ranges of effect
so that they no longer overlap. Also, one
can delete an adjusted color by selecting
the color in the adjustment color list and
pressing the <Del> key on the keyboard.
There are 3 color display modes from which to choose: HSL, Lab or RGB. Color values
are displayed in the appropriate panel.
Color Display Modes and Color
Figure-13 Color display modes and color value displays
Figure-13 Color display modes and color value displays
Value Displays
Switches the color display mode
Switches the color display mode
Color value before adjustment
Color value before adjustment
Color value after adjustment
One can adjust the gamma characteristics of an image
using the tone curve. By creating up to 10 adjustment
points anywhere along the tone curve, one can freely
adjust brightness and contrast. The results of the
adjustments are applied to the sample image in the
main window in real time.
V. SOFTWARE
Display with Each Color Display Mode
A color mode in which colors are
A color mode in which colors are
Color value after adjustment
represented in terms of 3 factors:
represented in terms of 3 factors:
H (Hue), S (Saturation) and L
H (Hue), S (Saturation) and L
(Luminosity).
(Luminosity).
Adjustment Color List
Figure-12 Adjustment color list
Figure-14 Display with each color display mode
Figure-14 Display with each color display mode
HSL mode
Lab mode
HSL mode
A color mode developed by the
A color mode developed by the
CIE (Commission Internatio-
CIE (Commission Internatio-
nale d'Eclairage) where "L"
nale d'Eclairage) where "L"
denotes lightness, "a"
denotes lightness, "a"
denotes the color elements
denotes the color elements
from green and "b" denotes
from green and "b" denotes
the color elements to magenta
the color elements to magenta
from blue to yellow.
from blue to yellow.
Color before adjustment
Color after adjustment
Range of effect overlap indicator
Apply/Do not apply checkbox
RGB mode
Lab mode
RGB mode
A color mode in which
A color mode in which
colors are represented
colors are represented
using the three primary
using the three primary
colors (and the additive
colors (and the additive
color mixtures) of the
color mixtures) of the
visible light spectrum: red
visible light spectrum: red
(R), green (G) and blue (B).
(R), green (G) and blue (B).
Adjusting the Gamma Characteristics
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