efg’s R Notes: EBImage: Intensity values linear scaling

RNotes | EBImage

---

library(EBImage)

normalize performs linear interpolation of the intensity values of an image to the specified range.

Original

x <- readImage(system.file('images', 'shapes.png', package='EBImage'))
x <- x[110:512,1:130]
y <- bwlabel(x)
display(x, title='Original')

Normalized

print(range(y))

## [1] 0 7

y <- normalize(y)
print(range(y))

## [1] 0 1

display(y, title='Segmented')

---

packageVersion("EBImage")

## [1] '4.8.2'

efg
2015-01-18 2003