imager.replace: Replace part of an image with another

Description

These replacement functions let you modify part of an image (for example, only the red channel). Note that cimg objects can also be treated as regular arrays and modified using the usual [] operator.

Usage

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channel(x, ind) <- value

R(x) <- value

G(x) <- value

B(x) <- value

frame(x, ind) <- value

Arguments

x

an image to be modified

ind

an index

value

the image to insert

Functions

See Also

imdraw

Examples

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boats.cp <- boats
#Set the green channel in the boats image to 0
G(boats.cp) <- 0
#Same thing, more verbose
channel(boats.cp,2) <- 0
#Replace the red channel with noise
R(boats.cp) <- imnoise(width(boats),height(boats))
#A new image with 5 frames
tmp <- imfill(10,10,5)
#Fill the third frame with noise
frame(tmp,3) <- imnoise(10,10)

Questions? Problems? Suggestions? or email at ian@mutexlabs.com.

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