efg’s R Notes: EBImage: Image Class

RNotes | EBImage

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library(EBImage)

Image class

• [-method
• as.array.Image
• as.Image
• as.raster.Image
• Color
• colorMode
• colormode
• colorMode<-
• getFrame
• getNumberOfFrames
• Grayscale
• hist-method
• Image
• Image-class
• imageData
• imageData<-
• image-method
• is.Image
• Math2-method
• median.Image
• numberOfFrames
• Ops-method
• print.Image
• quantile.Image
• show-method

s1 <- exp(12i*pi*seq(-1, 1, length=300)^2)
y <- Image(outer(Im(s1), Re(s1)))
display(normalize(y))

set.seed(17)
x <- Image(rnorm(300*300*3),dim=c(300,300,3), colormode='Color')
display(x)

w <- matrix(seq(0, 1, len=300), nc=300, nr=300)
m <- abind::abind(w, t(w), along=3)
z <- Image(m, colormode='Color')
display(normalize(z))

y <- Image(c('red', 'violet', '#ff51a5', 'yellow'), dim=c(71, 71))
display(y)

colorMode example

x <- readImage(system.file('images', 'nuclei.tif', package='EBImage'))
x <- x[,,1:3]
display(x, title='Cell nuclei')

## The image contains more than one frame: only the first one is displayed. To display all frames use 'all = TRUE'.

display(x, title='Cell nuclei', all=TRUE)

colorMode(x) <- Color
display(x, title='Cell nuclei in RGB')

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packageVersion("EBImage")

## [1] '4.8.2'

efg
2015-01-18 1952