col2bgr: Color to BGR Conversion
In neuroconductor-devel-releases/Rvision: Basic Computer Vision Library

Description Usage Arguments Details Value Author(s) See Also Examples

R color to BRG (blue/green/red) conversion.

1	col2bgr(col, alpha = FALSE)

`col`	Vector of any of the three kinds of R color specifications, i.e., either a color name (as listed by `colors`()), a hexadecimal string of the form "`#rrggbb`" or "`#rrggbbaa`" (see `rgb`), or a positive integer `i` meaning `palette()[i]`.
`alpha`	Logical value indicating whether the alpha channel (opacity) values should be returned.

NA (as integer or character) and "NA" mean transparent.

Values of col not of one of these types are coerced: real vectors are coerced to integer and other types to character. (factors are coerced to character: in all other cases the class is ignored when doing the coercion.)

Zero and negative values of col are an error.

An integer matrix with three or four (for alpha = TRUE) rows and number of columns the length of col. If col has names these are used as the column names of the return value.

Simon Garnier, garnier@njit.edu

col2rgb, rgb, palette