image.remap.color: Remap a color in an image, typically used to set the...

In dfsp-spirit/nitools: Managing and Visualizing Brain Surface Data

Remap a color in an image, typically used to set the background color to transparent.

Description

Offers 2 algorithm: remap color by flood-filling from a given pixel, or remap a hardcoded color throughout the entire image. Provide one of 'source_color' or 'source_point' by setting the other to NULL. If both are given, source_color takes precedence and source_point is silently ignored.

Usage

## S3 method for class 'remap.color'
image(
  source_img,
  source_color = NULL,
  source_point = "+1+1",
  target_color = "none"
)

Arguments

source_color	the source color that should be replaced in the whole image. Set to NULL to disable.
source_point	the source pixel in which to start the flood filling. Set to NULL to disable.
target_color	an image magick color string, use 'none' for transparency. Only used with flood fill.

dfsp-spirit/nitools documentation built on Jan. 26, 2024, 8:24 p.m.