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2001.01.23 17:41 "how to 'change' Rows/Strip ?", by Bård Kregnes
2001.01.23 18:00 "Re: how to 'change' Rows/Strip ?", by Helge Blischke

2001.01.23 17:41 "how to 'change' Rows/Strip ?", by Bård Kregnes

Hi!

I've made an VB-application(sic.) using the wang' OCX's who comes with Windows NT. This app. is used for rotating and re-saving tiffs. But it 'messess' up Rows/Strip:

Here's tiffinfo from a scanned image:

bash$ /usr/local/bin/tiffinfo 144729.tif

TIFF Directory at offset 0x8
    Subfile Type: (0 = 0x0)
    Image Width: 1584 Image Length: 1169
    Resolution: 200, 200 pixels/inch
    Compression Scheme: CCITT Group 4
    Photometric Interpretation: min-is-white
    Artist: "010118L000002-1"
    Rows/Strip: 1169
    Planar Configuration: single image plane

And here's tiffinfo after the VB-appl:

TIFF Directory at offset 0x8
    Subfile Type: (0 = 0x0)
    Image Width: 1584 Image Length: 1169
    Resolution: 200, 200 pixels/inch
    Bits/Sample: 1
    Compression Scheme: CCITT Group 4
    Photometric Interpretation: min-is-white
    FillOrder: msb-to-lsb
    Artist: "010118L000876-1"
    Software: "Oi/GFS, writer v00.06.00P, (c) Wang Labs, Inc. 1990, 1991"
    Orientation: row 0 top, col 0 lhs
    Samples/Pixel: 1
    Rows/Strip: 160
    Planar Configuration: single image plane
    Group 4 Options: (0 = 0x0)

I want to make look like 'before' using libtiff. Why: We gotta to deliver the tiff's to an auld and _very_ picky tiffviewer.

Any hints, tips & trix are welcome

TIA

Bård
--
bkr@jdi.no