User Guide

Chapter 3: Manage mode
Levels options
Channel Specifies the brightness or color channel you want to adjust.
Shadows Specifies the blackpoint of an image.
Move the slider or type a number from 0 to 255 into the spin box to define the blackest area of an image. As
the value increases, the dark colored areas of the image become darker.
Midtones Specifies the gamma correction in an image.
Move the slider or type a number from 0.00 to 2.00 into the spin box to set the amount of gamma
correction. Higher values make the image appear brighter, while lower values make the image appear
darker.
Highlights Specifies the whitepoint of an image.
Move the slider or type a number from 0 to 255 into the spin box to define the whitest area of an image. As
the value increases, the light colored areas of the image become lighter.
Clipped % Indicates how much of the image detail is lost due to blackpoint and whitepoint correction.
Shadows picker Click the Shadows picker and then click the image area you want to set as the blackpoint.
Midtones picker Click the Midtones picker and then click the image area you want to set as the gamma correction value.
Highlights
picker
Click the Highlights picker and then click the image area you want to set as the whitepoint.
Auto Select one of the following options:
Adjust Contrast: Automatically analyzes and adjusts image contrast.
Adjust Color and Contrast: Automatically analyzes and adjusts each color channel independently,
and then adjusts the contrast.
Adjust Color and Brightness: Automatically analyzes and adjusts image color and brightness.
Tolerance: Opens the Tolerance settings dialog box. Specify the maximum clipping percentage for
Shadows and Highlights, and click OK. ACDSee Pro adjusts the image levels automatically.
Exposure
warning
Highlights overexposed and underexposed areas of the image.
Reset Click to reset all options to the default.
Auto Levels options
Strength Adjusts the amount of exposure applied to the image.
Auto Contrast and
Color
Adjusts color differences, brightness, and image color channels.
Auto Contrast Adjusts the color differences and brightness only.
Exposure warning Highlights overexposed and underexposed areas of the image.
Reset Click to reset all options to the default.
Curves options
Channel Specifies the color channels to adjust.
Show Histogram Toggles the histogram display.
Histogram Displays a visual representation of the color information levels in the image, based on the selected channel.
Click and drag the line to manipulate the curve.
Exposure
warning
Highlights overexposed and underexposed areas of the image.
Reset Click to reset all options to the default.
91