LibTiff Mailing List

TIFF and LibTiff Mailing List Archive
December 2007

Previous Thread
Next Thread

Previous by Thread
Next by Thread

Previous by Date
Next by Date

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

2007.12.28 17:30 "Interleaving images from multiple Tiff files", by Richard Nolde

Andrew,
Two solutions come to mind. A very inefficient way to do this would be 
to use tiffsplit to break each input file into separate output files and 
then tiffcp to put them back together in a different order.

If you want to do this on a regular basis, look at tiffcp and modify the 
logic that reads files sequentially to read them in parallel.  This will 
require you to rewrite the main function to use multiple file handles, 
one  for each input file given as a parameter, and one for the single 
output file. Loop through your reads one input file at at time, writing 
each image to a single output file in sequence. You will have to 
maintain separate indices for the read image and the write image, but 
that should not be too hard. Of course, this assume that you are using 
all the input images.  You could select individual images from the input 
image with the current logic in tiffcp if you always want the same 
sequence from each input file.  If you want to select independently from 
each input file, build a list structure for each one and modify the 
parser to associate each list with a specific input file.

Richard Nolde
> Message: 3
> Date: Fri, 28 Dec 2007 11:37:49 +0000
> From: Andrew Wan <andrew_wan1980@hotmail.com>
> Subject: [Tiff] FW: HELP: how to merge 2 tiffs into 1
> To: <tiff@lists.maptools.org>
> Message-ID: <BAY139-W22898EFD9605145F1AC09AE3550@phx.gbl>
> Content-Type: text/plain; charset="windows-1252"
>
> Apologies for confusion of my post. What I mean is merging 2 tiff
> files.... where EACH tiff file has multiple TIFF images inside them. So
> tiff1.tiff has 25 images inside the file. tiff2.tiff has 25 images inside
> the file. What I want to do is extra the images from each file and put
> them into a new tiff file. Problem is, I want to INTERLACE the ordering.
> Get what I mean?
>
>
> From: andrew_wan1980@hotmail.comTo: tiff@lists.maptools.orgSubject: HELP:
> how to merge 2 tiffs into 1Date: Thu, 27 Dec 2007 17:40:46 +0000
>
>
> I read the documentation and want to write a program to merge two tiff
> files which has directories inside them. I can load the 2 tiff files and
> cycle through the directories. But how does one alternatively extract each
> image and create a new image with all the directories interlaced? eg.
> tiff1.dir1, tiff2.dir1, tiff1.dir2, tiff2.dir2....  
>
>
>