ImagePreviewFunction

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

Details

Original images are stored in the buffer, and the function specified using ImagePreviewFunction is only applied to them before being displayed.
Typical settings include:
Identity no processing

f an arbitrary function f

Examples

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:

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	Identity	no processing
	f	an arbitrary function f