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MinColor

Calculates the difference between the darkest value in the input image and the target value, and then adds the result to the image. This sets the darkest pixel to the target value.

To have MinColor calculate the darkest pixels and remember them, click Find Pixel Delta.

Inputs and Controls

Connection Type	Connection Name	Function
Input	unnamed	The image sequence to which the minimum is applied.

Control (UI)	Knob (Scripting)	Default Value	Function
MinColor Tab
search	channels	rgb	Only these channels are searched for the minimum value. If you set this to something other than all or none, you can use the checkboxes on the right to select individual channels.
modify	modify	all	Sets the channels to which the calculated delta is added. If you set this to something other than all or none, you can use the checkboxes on the right to select individual channels.
target	target	0.095	Sets the value to add to the calculated darkest pixel from the input image. This sets the darkest pixel in the image to the target value.
direction	adjdir	Up	Sets the conditions under which the image is modified: • Up - only apply changes if the calculated delta is positive. • Down - only apply changes if the calculated delta is negative. • Both - apply changes if the calculated delta is positive or negative.
delta	pixeldelta	0	Displays the calculated pixel delta value.
Find Pixel Delta	N/A	N/A	Click to calculate the pixel delta for all or some frames.
Python Tab (These controls are for Python callbacks and can be used to have Python functions automatically called when various events happen in Nuke.)
before render	beforeRender	none	These functions run prior to starting rendering in execute(). If they throw an exception, the render aborts.
before each frame	beforeFrameRender	none	These functions run prior to starting rendering of each individual frame. If they throw an exception, the render aborts.
after each frame	afterFrameRender	none	These functions run after each frame is finished rendering. They are not called if the render aborts. If they throw an exception, the render aborts.
after render	afterRender	none	These functions run after rendering of all frames is finished. If they throw an error, the render aborts.
render progress	renderProgress	none	These functions run during rendering to determine progress or failure.