R: Convert Colors of an Image

cvd_image {colorspace} | R Documentation

## 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)

### Arguments

`img` | `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).
`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.

[Package colorspace version 2.0-1 Index]