- 2017.08.30 16:17 "Re: [Tiff] problems saving BigTIFF format", by Kemp Watson
- 2017.08.30 16:27 "Re: [Tiff] problems saving BigTIFF format", by Paul Hemmer
- 2017.08.30 16:37 "Re: [Tiff] problems saving BigTIFF format", by Bob Friesenhahn
- 2017.08.30 17:38 "[Tiff] problems saving BigTIFF format", by Roger Leigh
2017.08.30 16:37 "Re: [Tiff] problems saving BigTIFF format", by Bob Friesenhahn
Is anything other than specifying "w8" in TIFFOpen() required to successfully create a BigTIFF file?
When my dataset is < 4GB and I open with "w" and write the data, I can view the image just fine.
When it is > 4GB and I use "w8" to open, all else the same, then the resulting file cannot be opened by any of the image viewers I can find that are said to support BigTIFF (IMARIS, Nikon Elements, FIJI/BioFormats, and VeryLargeImageViewer)
I don't know anything about those programs. Have you tried GraphicsMagick built against libtiff 4.XX?
% gm convert input.png bigtiff:output.tiff
% gm identify output.tiff
output.tiff BIGTIFF 914x610+0+0 DirectClass 8-bit 57.9Ki 0.000u 0m:0.000001s
% gm convert output.tiff output.jpg
Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/