Performs a Sobel edge-detection filter on an image.
Usage
wbt_sobel_filter(
  input,
  output,
  variant = "3x3",
  clip = 0,
  wd = NULL,
  verbose_mode = NULL,
  compress_rasters = NULL,
  command_only = FALSE
)Arguments
- input
- Input raster file path. See - wbt_file_path()for details.
- output
- Output raster file. 
- variant
- Optional variant value. Options include 3x3 and 5x5 (default is 3x3). 
- clip
- Optional amount to clip the distribution tails by, in percent (default is 0.0). 
- wd
- Changes the working directory. Default: - NULLwill use the value in WhiteboxTools settings, see- wbt_wd()for details.
- verbose_mode
- Sets verbose mode. If verbose mode is - FALSE, tools will not print output messages. Default:- NULLwill use the value in WhiteboxTools settings, see- wbt_verbose()for details.
- compress_rasters
- Sets the flag used by 'WhiteboxTools' to determine whether to use compression for output rasters. Default: - NULLwill use the value in WhiteboxTools settings, see- wbt_compress_rasters()for details.
- command_only
- Return command that would be executed by - system()rather than running tool. Default:- FALSE.