LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
July 2011
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
Thread
2011.07.28 18:04 "Re: Using photon lists rather than rasters", by Andreas Kleinert
luckily, at least it says: "TIFF is an image file format. [...] A TIFF file begins with an 8-byte image file header that points to an image file directory (IFD). An image file directory contains information about the image, as well as pointers to the actual image data. The following paragraphs describe the image file header and IFD in more detail." ;-) -------- Original Message -------- Subject: Re: [Tiff] Using photon lists rather than rasters From: Leonard Rosenthol <lrosenth@adobe.com> To: Chris Cox <ccox@adobe.com>, TIFF <tiff@lists.maptools.org> Date: 28.07.2011 13:48 > As much as I hate to correct Chris in public, I am inclined to point out > that while no one disputes that the ORIGINAL definition of "TIFF" was > the acronym stated below, the actual fact is that the spelled out > version NEVER appears in the actual "standard" (TIFF v6). So that > OFFICIALLY it is just "TIFF". > > Leonard > > From: Chris Cox <ccox@adobe.com <mailto:ccox@adobe.com>> > Date: Wed, 27 Jul 2011 16:57:30 -0700 > To: TIFF <tiff@lists.maptools.org <mailto:tiff@lists.maptools.org>> > Subject: Re: [Tiff] Using photon lists rather than rasters > > > Tagged Image File Format. > > I would rather not see a TIFF “image” that is not an image and is not > readable by other software. > TIFF already gets too much abuse with undocumented custom compression > types that render the files useless. > > In this case you are creating a vector display list, for which there are > more appropriate types. > > Personally, I’d just apply a better predictor to improve compression and > keep the image data. If all you need are locations/centroids of photon > hits – you could easily convert the image to a 1 bit/sample > representation and compress that. > > > Chris