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4-3 Adjusting Brightness and Contrast
Chapter 4 More Advanced Operations
52
Tips and Tricks for Image Adjustment
What You Can Do in the Preview Window
The dark and bright areas are printed as shown in the figure.
Dark-color areas are not struck, and light-color areas are struck forcefully.
Also, the printing results before and after adjustment are as shown below.
Bright area
Dark area
Before adjusting After adjusting
Gamma adjusted to 0.4.
The brightness of the face is reduced,
making the expression clearly defined.
Gamma
This mainly adjusts the brightness of tones of
intermediate brightness between bright and dark
areas. Using it is effective in adjusting the over-
all brightness.
Brightness
This adjusts the overall brightness. Making the
value too large can destroy the balance, so it
may be a good idea to adjust it to the absolute
minimum necessary.
Contrast
This mainly adjusts highlights (the brightest ar-
eas) and shadows (the darkest areas). Using this
can be effective when you want to achieve a
sense of tension with a good balance of light
and dark.