GpimageRgbchange: Change image colors

In Rgnuplot: R Interface for Gnuplot

Description

GpimageRGBchange modifies an image with either a formula for each color component of RGB or for all GpimageRgbfalsecolor converts an image from true color to false color and vice-versa GpimageRgbfiltercolorBlue filters an image using the blue channel GpimageRgbfiltercolorGreen filters an image using the green channel GpimageRgbfiltercolorRed filters an image using the red channel GpimageRgbfiltercolorSepia filters an image using a sepia algorithm GpimageRgbfiltercolorSepia2 filters an image using a 2nd sepia algorithm GpimageRgbgreyscaleBT709 filters an image using greyscale algorithm - BT709 GpimageRgbgreyscaleLinear filters an image using greyscale algorithm - linear GpimageRgbgreyscaleLuminosity filters an image using greyscale algorithm - luminosity GpimageRgbgreyscaleRMY filters an image using greyscale algorithm - RMY GpimageRgbgreyscaleY filters an image using greyscale algorithm - Y GpimageRgbgreyscaleavg filters an image using greyscale algorithm - average

Usage

GpimageRGBchange(fileIN, fileOUT, filetype='PNG', terminal=NULL,
	rgbformula,rgbformulaG='',rgbformulaB='')
GpimageRgbfalsecolor(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbfiltercolorBlue(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbfiltercolorGreen(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbfiltercolorRed(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbfiltercolorSepia(fileIN, fileOUT, filetype='PNG', terminal=NULL,
sepiaDepth=20,sepiaIntensity=10)
GpimageRgbfiltercolorSepia2(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbgreyscaleBT709(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbgreyscaleLinear(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbgreyscaleLuminosity(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbgreyscaleRMY(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbgreyscaleY(fileIN, fileOUT, filetype='PNG', terminal=NULL)
GpimageRgbgreyscaleavg(fileIN, fileOUT, filetype='PNG', terminal=NULL)

Arguments

fileIN	input file name
fileOUT	output file name
filetype	image file type
terminal	terminal name
rgbformula	formula for the 3 RGB channels or for channel R
rgbformulaG	formula for for channel G
rgbformulaB	formula for for channel B
sepiaDepth	depth value for the sepia algorithm
sepiaIntensity	intensity value for the sepia algorithm

Value

none

Author(s)

Jose' Gama

See Also

GpimagePlot

Rgnuplot documentation built on May 1, 2019, 9:17 p.m.