rgb2grey: Convert color imagematrix to grey imagematrix

In ripa: R Image Processing and Analysis

Description

This function convert color imagematrix to grey imagematrix.

Usage

rgb2grey(img, coefs=c(0.30, 0.59, 0.11))

Arguments

img	target image
coefs	coefficients for red plane, green plane, and blue plane.

Value

grey imagematrix

Examples

## Not run: 
  x <- read.jpeg(system.file("extdata", "Rlogo.jpg", package="ripa"))
  plot(rgb2grey(x))
  
## End(Not run)

ripa documentation built on May 29, 2017, 5:39 p.m.