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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">The saga continues...<br>
<br>
I finally found and built tiff-4.0.2, to get tiffinfo.exe. This has revealed a problem with the tiff files built using the ITK that Slicer has created. This version was pulled using this cmake line:<br>
set(ITKv4_GIT_TAG 056d97b66a1ddbae77e2217c5bd96e436c7e44fc) # slicer-v4.6.0-2014-09-19-056d97b<br>
<br>
When I execute 'tiffinfo -D big1300.tif' or any uncompressed tiff bigger than 2 GB tiffinfo gets a seek error when it tries to go over the 2 GB mark:<br>
<br>
...<br>
TIFF Directory at offset 0x7fd0fcf4 (2144402676)<br>
Subfile Type: multi-page document (2 = 0x2)<br>
Image Width: 1300 Image Length: 1300<br>
Resolution: 25.4, 25.4 pixels/inch<br>
Bits/Sample: 8<br>
Compression Scheme: None<br>
Photometric Interpretation: min-is-black<br>
Orientation: row 0 top, col 0 lhs<br>
Samples/Pixel: 1<br>
Rows/Strip: 6<br>
Planar Configuration: single image plane<br>
Page Number: 1265-1300<br>
Software: InsightToolkit<br>
TIFF Directory at offset 0x7fead588 (2146096520)<br>
Subfile Type: multi-page document (2 = 0x2)<br>
Image Width: 1300 Image Length: 1300<br>
Resolution: 25.4, 25.4 pixels/inch<br>
Bits/Sample: 8<br>
Compression Scheme: None<br>
Photometric Interpretation: min-is-black<br>
Orientation: row 0 top, col 0 lhs<br>
Samples/Pixel: 1<br>
Rows/Strip: 6<br>
Planar Configuration: single image plane<br>
Page Number: 1266-1300<br>
Software: InsightToolkit<br>
TIFFFetchDirectory: big1300.tif: Seek error accessing TIFF directory.<br>
TIFFReadDirectory: Failed to read directory at offset 2147790364.<br>
<br>
There is no problem with the compressed version of the image. <br>
<br>
This has added to my confusion. A program built with the same ITK library can read this file, raising the possibility that it is tiffinfo itself that can't handle a memory pointer > 2 GB. But I did build libtiff and tiffinfo using Win64. And Vaa3D also gets
this seek error when reading the file.<br>
<br>
Any ideas?<br>
<br>
Gib<br>
<br>
PS It is probably totally irrelevant to the tiff issue, but I happened to notice that there are a few occurrences in other places of checks for _WIN64, which is not defined.<br>
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