From: Kamaljeet Saini <kamaljeet_singh_saini@...>
Date: 2009-01-23T01:34:55+09:00
Subject: Re: Converting binary image file to bmp file using RMagick2.0

The above posting code worked fine for 704/480 binary to image file but
for the attached file the same code is not working. Its 800/480 binary
file. Possible to advice please. Im try to use the following code.

require 'rmagick'
file_name = "C:/image2.text" # the binary file
image_file_name = "C:/image2.bmp" # the expected file to be generated
image = Magick::Image.new(800, 480)
file = File.open(file_name,"rb").read

one = []
two = []
three = []

file.unpack('S*').each { |x|
  three << (x & 0x1F) * 8
  #puts "Three: #{three}"
  two << ((x >> 5) & 0x1F) * 8
  #puts "Two: #{two}"
  one << ((x >> 10) & 0x1F) * 8
  #puts "One: #{one}"
}

bufferscreen_height=480
bufferscreen_width=800
k=0
for i in 0...bufferscreen_height
  for j in 0...bufferscreen_width
    q=Magick::Pixel.new(one[k],two[k],three[k],0)
    image.pixel_color(j,i,q)
    k += 1
 end
end
image.write(image_file_name)

Attachments:
http://www.ruby-forum.com/attachment/3194/image2.text

-- 
Posted via http://www.ruby-forum.com/.