From:	"Alan Wills" <alan AT spd DOT eee DOT strath DOT ac DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Flipping an image
Date:	Tue, 13 Jul 1999 10:59:58 +0100
Organization:	University of Strathclyde Computer Centre
Message-ID:	<7mf2qk$nlg$1@rockall.cc.strath.ac.uk>
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

This seemed like a simple problem but I can't get it to work.
How do I write a function that will flip an image about its horizontal axis.
The image is stored in a 1-D array so the the function should look something
like:

void flip_image(int array[], int rows, int cols)
{
int row_count, col_count, total_pixelsp;

  for(row_count = 0; row_count < rows; row_count++)
   {
    for(col_count = 0; col_count < cols; col_count++)
     {
        array[???] = array[???];
     }
   }
}

If anyone could fill in the blanks I'd be very grateful.
Thanks,
--
Alan
____________________________________
Alan Wills
alan AT spd DOT eee DOT strath DOT ac DOT uk

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