is an option for CurrentImage and similar functions that specifies the function to apply to images before being displayed.


  • Original images are stored in the buffer, and the function specified using ImagePreviewFunction is only applied to them before being displayed.
  • Typical settings include:
  • Identityno processing
    fan arbitrary function f


Basic Examples  (1)

By default, the original captured image is displayed in the capture user interface:

Apply a function to the images before displaying:

Notice the values stored in the buffer are still the original captured frames:

Introduced in 2017