40 Making Image Adjustments
The following adjustments are available:
• Levels: Adjust contrast and tonal range by shifting dark, light, and
mid-tone values.
• Curves: Fine-tune lightness (luminance) values in the image or color
channel using a line graph.
• Color Balance: Adjust color and tonal balance for general color
correction in the image.
• Brightness/Contrast: Vary brightness and/or contrast.
• Hue/Saturation/Lightness: Vary hue, saturation, and/or lightness
values.
• Colorize: Vary hue, saturation, and/or lightness to colorize an image.
• Vibrance: Boosts the saturation of low-saturation colors (while
limiting saturation of already saturated colors).
• Selective Color: Add or subtract a certain percentage of cyan,
magenta, yellow, and/or black ink.
• Channel Mixer: Modify a color channel using a mix of the current
color channels.
• Gradient Map: Remap grayscale (lightness) information in the image
to a selected gradient.
• Lens Filter: Apply a color filter to warm up (or cool down) your
image.
• Black & White Film: Convert your color image to black and white
intelligently.
• Threshold Filter: Create a monochromatic (black and white)
representation.
• Posterize: Apply the Posterize effect by limiting the number of
lightness levels.
• Negative Image: Invert each color, replacing it with an "opposite"
value.
For more in-depth details on each adjustment, view the PhotoPlus help, click the
Contents tab, and open the "Making Image Adjustments" book.
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