Subtracting a constant from a grayscale image

1. Click Grayscale»Operators or click Operators in the Grayscale tab of the Processing Functions palette.
2. Select Subtract from the Operators list.
3. Select the Constant option.
4. Set the constant value.
5. Click OK to subtract the constant from the image.

Related Topics

Adding a constant to a grayscale image

Adding a grayscale image to a grayscale image

Comparing a grayscale image with a constant

Comparing grayscale images

Dividing a grayscale image by a constant

Dividing a grayscale image by a grayscale image

Image Buffer (Image»Image Buffer)

Operators (Grayscale»Operators)

Multiplying a grayscale image by a constant

Multiplying a grayscale image by a grayscale image

Retrieving an image from an image buffer

Storing an image in an image buffer

Subtracting a grayscale image from a grayscale image

Using the Operators function