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From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
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To: Wendel Dean Renner <WendelDRenner@comcast.net>
cc: tiff@remotesensing.org
Subject: Re: [Tiff] Need consultant
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Date: Wed, 24 Mar 2004 16:15:18 -0600 (CST)
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If you can provide me with a sample image, I will be happy to verify
that GraphicsMagick (http://www.graphicsmagick.org/) can read your
16-bit RGB TIFF and properly convert it to grayscale, or modify it to
do so.

GraphicsMagick works for both Unix and Windows and provides simple
programming APIs for use with C++ and other languages.

Bob

On Wed, 24 Mar 2004, Wendel Dean Renner wrote:

> Please reply to WendelDRenner@comcast.net as we are not on the mailing list.
>
> We need to be able to read TIFF image files from the UMAX 2100XL film
> scanner.   X-ray films are to be scanned, so ultimately gray scale is
> needed (i.e. if the file is 16 bits each of red, green, blue, one would
> just take the average of each of those three signals at each pixel, but
> then we can do that if a true color array structure is simply returned
> by the function).
>
> The tiff library only goes to 8 bit.   We simple need a routine that can
> handle 16 bit, so that we have a c or c++ function we can call to decode
> the image data from the file and return the image data in an array of
> some sort.   We also need the image size of course, and the pixel size
> if that was in the file.  We would like to be able to compile the C or
> C++ routine on various platforms (Visual c++ .net or Linux).  We have a
> routine that makes calls to the libtiff  library to decode an image that
> is 8 bit, but don't know how to modify things to handle 16 bits per
> pixel, be it true color or gray scale.
>
> Is there anyone who could do this for us?
>
> Wendel Dean Renner, Math Resolutions, LLC
> WendelDRenner@Comcast.net
> or
> support@mathresolutions.com
>
>
> _______________________________________________
> Tiff mailing list
> Tiff@remotesensing.org
> http://remotesensing.org/mailman/listinfo/tiff
>

======================================
Bob Friesenhahn
bfriesen@simple.dallas.tx.us
http://www.simplesystems.org/users/bfriesen

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