Using the Transfer Function in a Histogram

A

Adjust brightness by clicking and dragging horizontally (left to increase, right to decrease).

B

Adjust contrast by clicking and dragging vertically (up to increase, down to decrease).

Transfer function (C)

x-axis (horizontal)

Grayscale level (black = low, white = high)

y-axis (vertical)

Pixel luminance (brightness)

Histogram (D)

x-axis (horizontal)

Grayscale range (from black to white)

y-axis (vertical)

Number of pixels

 Note:

• If you close a modified image, your changes will be automatically saved if the Automatically save image modifications option has been activated in Save Preferences.

• You can use the image reset function to revert to the image's acquisition state if required. See Resetting Images.