survey: Create multiple sketches at once and combine them into a...

In sketcher: Pencil Sketch Effect

Description

It is often necessary to find optimal sketch style parameters for your task. With this function, you can easily compare the effects of different style parameters.

Usage

survey(
  im,
  style = 1,
  weight_levels = c(1, 2, 4),
  smooth_levels = c(1, 2, 4),
  gain = 0.02,
  contrast = NULL,
  shadow = 0,
  verbose = TRUE
)

Arguments

im	an image.
style	numeric (integer). Either 1 (edge-focused) or 2 (smooth gradient)
weight_levels	numeric (integer). a vector of lineweight values
smooth_levels	numeric (integer). a vector of smooth values
gain	a numeric between 0 and 1. Can be used to reduce noise in dim regions.
contrast	numeric (integer). Adjusts the image contrast.
shadow	a numeric between 0 and 1
verbose	If TRUE (default), progress information is displayed in the Console.

Value

an array of the sketched image.

Examples

im = survey(face, style = 1, weight_levels = c(1, 3), smooth_levels = c(1, 3), shadow = 0.3)
plot(im)

sketcher documentation built on July 2, 2020, 4:06 a.m.