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Re: reading pixels from a bmp file

• To: mathgroup at smc.vnet.net
• Subject: [mg20737] Re: [mg20625] reading pixels from a bmp file
• From: Andrew Watson <abwatson at mail.arc.nasa.gov>
• Date: Wed, 10 Nov 1999 00:17:49 -0500
• References: <199911040713.CAA02692@smc.vnet.net.>
• Sender: owner-wri-mathgroup at wolfram.com

At 2:13 AM -0500 11/4/99, Jesper Bannebjerg wrote:
>Hello
>
>I have a problem with getting Mathematica to read a bitmap pixel by
>pixel.
>I want to load an image from a bmp file and then read each line and
>each pixel.
>How do i do that.
>I can easely get Mathematica to show the graphic image but i cant get
>it to read the elements (the pixels)
>Any ideas ????

Try:

ReadImage[filename_, format_] := Import[filename, format][[1, 1]]

If your file is "file.bmp", then

image = ReadImage["file.bmp", "BMP"] ;

The result will be an array of numbers.

Regards,
Andrew Watson

• References:
  • reading pixels from a bmp file
    • From: jesper.bannebjerg@get2net.dk (Jesper Bannebjerg)