[Openev-discuss] from batch files to tiffs

[Jim J. <ju...@pr...>]

Hi,

    Since a solution to the batch file problem is imminent, I'm going to
go ahead and discuss my original reason for wanting to post to the
discussion group/forum.
    When I import a SDTS file into OPenEV, the program automatically
creates a tiff file for the DEM. Is there anything unusual about these tiff?
When I try to display them on image browsers, they invariably are distorted.
Each browser seems to display a different interpretaion of the data.

What follows are the results of running tiffinfo.exe and tiffdump.exe  from
libtiff on one of the files (5760CATD.tif).

-------------------------------------- tiffinfo 
-------------------------------------------
=====================================================
MS-DOS command line output for tiffinfo.exe:

D:\LibTiff_3.5.7\bin>tiffdump 5760catd.tif > catd_dump.txt

D:\LibTiff_3.5.7\bin>tiffinfo 5760catd.tif > catd_info.txt
5760catd.tif: Warning, unknown field with tag 33550 (0x830e) ignored.
5760catd.tif: Warning, unknown field with tag 33922 (0x8482) ignored.
5760catd.tif: Warning, unknown field with tag 34735 (0x87af) ignored.
======================================================
contents of  catdinfo.txt:

TIFF Directory at offset 0x80008
   Image Width: 378 Image Length: 466
   Tile Width: 256 Tile Length: 256
   Bits/Sample: 16
   Sample Format: signed integer
   Compression Scheme: None
   Photometric Interpretation: min-is-black
   Samples/Pixel: 1
   Planar Configuration: single image plane
TIFF Directory at offset 0x8014a
   Subfile Type: reduced-resolution image (1 = 0x1)
   Image Width: 189 Image Length: 233
   Tile Width: 128 Tile Length: 128
   Bits/Sample: 16
   Sample Format: signed integer
   Compression Scheme: None
   Photometric Interpretation: min-is-black
   Samples/Pixel: 1
   Planar Configuration: single image plane
TIFF Directory at offset 0x8020c
   Subfile Type: reduced-resolution image (1 = 0x1)
   Image Width: 95 Image Length: 117
   Tile Width: 128 Tile Length: 128
   Bits/Sample: 16
   Sample Format: signed integer
   Compression Scheme: None
   Photometric Interpretation: min-is-black
   Samples/Pixel: 1
   Planar Configuration: single image plane
TIFF Directory at offset 0x802ae
   Subfile Type: reduced-resolution image (1 = 0x1)
   Image Width: 48 Image Length: 59
   Tile Width: 128 Tile Length: 128
   Bits/Sample: 16
   Sample Format: signed integer
   Compression Scheme: None
   Photometric Interpretation: min-is-black
   Samples/Pixel: 1
   Planar Configuration: single image plane

------------------------------------------ tiffdump 
-----------------------------------------
contents of catddump.txt:

5760catd.tif:
Magic: 0x4949 <little-endian> Version: 0x2a
Directory 0: offset 524296 (0x80008) next 524618 (0x8014a)
ImageWidth (256) SHORT (3) 1<378>
ImageLength (257) SHORT (3) 1<466>
BitsPerSample (258) SHORT (3) 1<16>
Compression (259) SHORT (3) 1<1>
Photometric (262) SHORT (3) 1<1>
SamplesPerPixel (277) SHORT (3) 1<1>
PlanarConfig (284) SHORT (3) 1<1>
TileWidth (322) SHORT (3) 1<256>
TileLength (323) SHORT (3) 1<256>
TileOffsets (324) LONG (4) 4<8 131080 262152 393224>
TileByteCounts (325) LONG (4) 4<131072 131072 131072 131072>
SampleFormat (339) SHORT (3) 1<2>
33550 (0x830e) DOUBLE (12) 3<30 30 0>
33922 (0x8482) DOUBLE (12) 6<0 0 0 410295 4.03967e+006 0>
34735 (0x87af) SHORT (3) 16<1 1 0 3 1024 0 1 1 1025 0 1 1 3072 0 1 26717>
Directory 1: offset 524618 (0x8014a) next 524812 (0x8020c)
SubFileType (254) LONG (4) 1<1>
ImageWidth (256) SHORT (3) 1<189>
ImageLength (257) SHORT (3) 1<233>
BitsPerSample (258) SHORT (3) 1<16>
Compression (259) SHORT (3) 1<1>
Photometric (262) SHORT (3) 1<1>
SamplesPerPixel (277) SHORT (3) 1<1>
PlanarConfig (284) SHORT (3) 1<1>
TileWidth (322) SHORT (3) 1<128>
TileLength (323) SHORT (3) 1<128>
TileOffsets (324) LONG (4) 4<525136 557904 590672 623440>
TileByteCounts (325) LONG (4) 4<32768 32768 32768 32768>
SampleFormat (339) SHORT (3) 1<2>
Directory 2: offset 524812 (0x8020c) next 524974 (0x802ae)
SubFileType (254) LONG (4) 1<1>
ImageWidth (256) SHORT (3) 1<95>
ImageLength (257) SHORT (3) 1<117>
BitsPerSample (258) SHORT (3) 1<16>
Compression (259) SHORT (3) 1<1>
Photometric (262) SHORT (3) 1<1>
SamplesPerPixel (277) SHORT (3) 1<1>
PlanarConfig (284) SHORT (3) 1<1>
TileWidth (322) SHORT (3) 1<128>
TileLength (323) SHORT (3) 1<128>
TileOffsets (324) LONG (4) 1<656208>
TileByteCounts (325) LONG (4) 1<32768>
SampleFormat (339) SHORT (3) 1<2>
Directory 3: offset 524974 (0x802ae) next 0 (0)
SubFileType (254) LONG (4) 1<1>
ImageWidth (256) SHORT (3) 1<48>
ImageLength (257) SHORT (3) 1<59>
BitsPerSample (258) SHORT (3) 1<16>
Compression (259) SHORT (3) 1<1>
Photometric (262) SHORT (3) 1<1>
SamplesPerPixel (277) SHORT (3) 1<1>
PlanarConfig (284) SHORT (3) 1<1>
TileWidth (322) SHORT (3) 1<128>
TileLength (323) SHORT (3) 1<128>
TileOffsets (324) LONG (4) 1<688976>
TileByteCounts (325) LONG (4) 1<32768>
SampleFormat (339) SHORT (3) 1<2>