File: threshold.rb

package info (click to toggle)
librmagick-ruby 2.13.1-2
  • links: PTS, VCS
  • area: main
  • in suites: squeeze
  • size: 4,444 kB
  • ctags: 1,716
  • sloc: ansic: 16,755; ruby: 9,730; makefile: 16; sh: 12
file content (13 lines) | stat: -rw-r--r-- 279 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
#! /usr/local/bin/ruby -w
require 'RMagick'

# Demonstrate the Image#threshold method

img = Magick::Image.read('images/Flower_Hat.jpg').first

# Use a threshold of 55% of QuantumRange.
img = img.threshold(Magick::QuantumRange*0.55)

#img.display
img.write('threshold.jpg')
exit