2006.02.13 16:35 "RE: [Tiff] question about planar tiffs", by Ed Grissom
I think I am misunderstanding someone here.
If you have three components (RGB), then (with Planar Configuration==2) the number of strips must be a multiple of three. Michael's 6 strip organization looks fine.
I don't understand what Chris is trying to say. The TIFF spec explicitly says that the red, green, and blue strips can be interleaved. There is no requirement where the data is on disk, just that the StripOffsets and StripByteCounts must be segregated with all the red pointers first, followed by all the green pointers etc. The data can be anywhere in the file, interleaved (by strip) or segregated -- writer's choice.
What am I missing?
--
ed grissom
ed.grissom@intergraph.com
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From: tiff-bounces@lists.maptools.org
[mailto:tiff-bounces@lists.maptools.org]
Sent: Saturday, February 11, 2006 1:07 PM
To: michael Dorrian; tiff@lists.maptools.org Subject: Re: [Tiff] question about planar tiffs
Planar means planar ALL of the red plane, then ALL of the green plane, then ALL of the blue plane. -
Try saving a planar TIFF image from Photoshop CS2 for an example.
On 2/11/06 1:35 AM, "michael Dorrian" <m_dorrian@yahoo.com> wrote:
I can create a planar tif which has 3 or 4 strips. The 4th strip being the
final rows. I have accomplished this but i cannot seem to get a planar tiff
with many strips working?. I was just wondering whether its possible or does
it always have to be organised in 3 or 4 strips?. Lets say i have 6 strips.
Is it organised like this:
1st strip:Red bytes
2nd strip green bytes
3rd strip blue bytes
4th strip red bytes
5th strip green bytes
6th strip blue bytes
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