HistEQ

Alters the histogram of the input image to be flat. This process is called histogram equalization. It can be useful for increasing the contrast in an image, for example, if the background and foreground in the image are both bright or both dark.

Inputs and Controls

Connection Type	Connection Name	Function
Input	unnamed	The image sequence to equalize.

Control (UI)	Knob (Scripting)	Default Value	Function
HistEQ Tab
Histogram Entries	histeqbins	4096	Adjust the number of entries in the histogram.
mask	N/A	disabled	Enables the associated mask channel to the right. Disabling this checkbox is the same as setting the channel to none.
	maskChannelInput	none	The channel to use as a mask. By default, the color correction is limited to the non-black areas of this channel.
invert mask	invert_mask	disabled	Inverts the use of the mask channel so that the color correction is limited to the non-white areas of the mask.