AWARE [SYSTEMS] Imaging expertise for the Delphi developer
AWare Systems, Imaging expertise for the Delphi developer, Home TIFF and LibTiff Mailing List Archive

LibTiff Mailing List

TIFF and LibTiff Mailing List Archive
April 2006

Previous Thread
Next Thread

Previous by Thread
Next by Thread

Previous by Date
Next by Date

Contact

The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems



Valid HTML 4.01!



Thread

2006.04.04 16:50 "BigTIFF Suggestion", by Larry Michaels
2006.04.04 21:33 "Re: BigTIFF Suggestion", by Chris Cox
2006.04.04 21:56 "Re: BigTIFF Suggestion", by Joris Van Damme
2006.04.05 01:59 "Re: BigTIFF Suggestion", by Bob Friesenhahn
2006.04.05 02:22 "Re: BigTIFF Suggestion", by Joris Van Damme
2006.04.06 09:46 "Re: BigTIFF Suggestion", by Gerben Vos
2006.04.06 15:11 "Re: BigTIFF Suggestion", by Bob Friesenhahn
2006.04.14 17:44 "Re: BigTIFF Suggestion", by <melser.anton@gmail.com>
2006.04.14 18:13 "Re: BigTIFF Suggestion", by Joris Van Damme
2006.04.15 10:18 "Re: BigTIFF Suggestion", by <melser.anton@gmail.com>
2006.04.04 22:09 "Re: BigTIFF Suggestion", by Frank Warmerdam
2006.04.04 22:14 "Re: BigTIFF Suggestion", by Larry Michaels
2006.04.04 22:24 "Re: BigTIFF Suggestion", by Joris Van Damme
2006.04.04 22:34 "Re: BigTIFF Suggestion", by Larry Michaels
2006.04.04 22:42 "Re: BigTIFF Suggestion", by Joris Van Damme
2006.04.04 23:07 "Re: BigTIFF Suggestion", by Larry Michaels
2006.04.05 00:17 "Re: BigTIFF Suggestion", by Joris Van Damme
2006.04.05 02:25 "Re: BigTIFF Suggestion", by Joris Van Damme
2006.04.05 11:12 "Re: BigTIFF Suggestion", by Leonard Rosenthol
2006.04.05 16:13 "Re: BigTIFF Suggestion", by Bill Bither

2006.04.04 22:14 "Re: BigTIFF Suggestion", by Larry Michaels

Our application acquires images from digital cameras and allows images to be
stored in sequences which are currently TIFF files.  It therefore commonly 
needs to append new images to existing TIFFs.   Our users may need to save 
hundreds or even thousands of images in a single TIFF file.  I have 
implemented a few tricks with the LibTIFF code to avoid having to walk through 
the entire directory list each time, but it would be great if the new BigTIFF 
specification could support this capability officially.

I thought that simply adding another eight bytes to the BigTIFF header for an 
last IFD offset value would provide the needed information with minimum 
disruption to the specification.  The value could be optional; If a BigTIFF 
writer did not want to write the offset value, it could simply write zero to 
the field.

I realize that this suggestion would have been more appropriate two years ago, 
but I have only just recently been asked to enhance our application's efficient 
writing of huge image sequence files, and have therefore started investigating 
BigTIFF as an option.


Larry Michaels