clipping: Clipping image

In ripa: R Image Processing and Analysis

Description

This function returns the image which restricts pixel value from the specified lowest value to the specified highest value in the original image. This means that the pixels which have lower value than the given lowest (default: 0) are replaced to the lowest and the pixels have greater value than the given highest (default: 1) are replaced to the highest.

Usage

clipping(img, low=0, high=1)

Arguments

img	target image
low	lowest value
high	highest value

Value

Data of the same mode as 'img'

Examples

  data(logo)
  op <- par(mfrow=c(2,2))
  plot(logo, main="Source Image")

  # the appearance of next one doesn't change because of normalization.
  plot(normalize(2*logo), main="Doubled pixel value with normalization")

  # the next one is saturated as expected
  plot(clipping(2*logo), main="Doubled pixel value with clipping")

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