cvd_image: Convert Colors of an Image

In colorspace: A Toolbox for Manipulating and Assessing Colors and Palettes

Convert Colors of an Image

Description

Used in cvd_emulator. Takes an image object and converts the colors using deutan, protan, tritan, desaturate functions. The image will be written to disc as a PNG file.

Usage

cvd_image(img, type, file, severity = 1, linear = TRUE)

Arguments

img	character or array as returned by readPNG and readJPEG of size height x width x depth. The depth coordinate contains R/G/B and alpha if given (png). In case of a single character string img has to be the full path to an image of type png or jpg/jpeg.
type	string name of the function which will be used to convert the colors (deutan, protan, tritan, desaturate). If set to original the image will be written as is.
file	string with (full) path to resulting image. Has to be a png image name.
severity	numeric. Severity of the color vision defect, a number between 0 and 1.
linear	logical. Should the color vision deficiency transformation be applied to the linearized RGB coordinates (default)? If FALSE, the transformation is applied to the gamma-corrected sRGB coordinates (which was the default up to version 2.0-3 of the package).

colorspace documentation built on Sept. 11, 2024, 7:05 p.m.