mlr_pipeopstrafo_grayscale function

Grayscale Transformation

Calls torchvision::transform_grayscale, see there for more information on the parameters. The preprocessing is applied to each element of a batch individually.

Format

R6Class inheriting from PipeOpTaskPreprocTorch.

Parameters

Id	Type	Default	Levels	Range
num_output_channels	integer	-		$[1, 3]$
stages	character	-	train, predict, both	-
affect_columns	untyped	selector_all()		-