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August 2009

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2009.08.03 18:01 ".raw extension", by Joe Tracy
2009.08.03 20:20 "Re: .raw extension", by Chris Cox
2009.08.04 14:13 "Re: .raw extension", by Joe Tracy
2009.08.04 16:22 "Re: .raw extension", by Michael Persons
2009.08.04 19:11 "Re: .raw extension", by Chris Cox

2009.08.04 19:11 "Re: .raw extension", by Chris Cox

Joe;

That's a contradiction in terms.

If the file is just raw bytes without any header (or structure), then it is
not a TIFF file.
TIFF can include a raw, uncompressed byte dump - but it must have a header
and normal TIFF structure.

Chris


On 8/4/09 7:13 AM, "Joe Tracy" <JTracy@akimn.com> wrote:

No,  they are raw uncompressed 16 bit tiff files without a header.  I
received a suggestion on using the ChannelInputStream class so I am going to
give this a try.

Thanks,
joe

________________________________

From: Chris Cox [mailto:ccox@adobe.com]
Sent: Monday, August 03, 2009 3:21 PM
To: Joe Tracy; TIFF
Subject: Re: [Tiff] .raw extension

Are these RAW files from a digital camera?  If so, LibTIFF won't be able to
do much with them --  because RAW files are not simple pixels, they are a
record of the sensor data and need to be demosaic'd before they become
useful images.  Take a look at dcraw.

Chris



On 8/3/09 11:01 AM, "Joe Tracy" <JTracy@akimn.com> wrote:
Has anyone used libtiff to read in a .raw file?  The files I have are raw,
uncompressed tiff images (16 bit).  I would like to read them in, write a
header and create a tiff file of them.

Thanks,
Joe