- 2007.07.03 19:04 "Re: [Tiff] BigTIFF extension?", by Stephen Carlsen
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2007.07.03 19:09 "Re: [Tiff] BigTIFF extension?", by Bob Friesenhahn
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2007.07.04 15:58 "Re: [Tiff] BigTIFF extension?", by Phil Harvey
- 2007.07.04 11:37 "Re: [Tiff] BigTIFF extension?", by Phil Harvey
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2007.07.04 17:13 "[Tiff] 16-Bit-Per-Channel Lossless Compression", by Stephen Carlsen
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2007.07.04 17:24 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Andy Cave
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2007.07.04 17:26 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Andy Cave
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2007.07.04 17:49 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Stephen Carlsen
- 2007.07.04 18:00 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Joris Van Damme
- 2007.07.04 20:37 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Andy Cave
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2007.07.05 10:56 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Andrey Kiselev
- 2007.07.05 12:03 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Andy Cave
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2007.07.05 17:58 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Stephen Carlsen
- 2007.07.04 18:02 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Joris Van Damme
- 2007.07.05 18:30 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Joris Van Damme
- 2007.07.06 01:46 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Chris Cox
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2007.07.04 17:49 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Stephen Carlsen
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2007.07.04 17:26 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Andy Cave
- 2007.07.04 17:28 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Michael Wolf
- 2007.07.04 17:36 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Andrew Brooks
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2007.07.04 17:24 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Andy Cave
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2007.07.04 15:58 "Re: [Tiff] BigTIFF extension?", by Phil Harvey
- 2007.07.03 19:17 "Re: [Tiff] BigTIFF extension?", by Andy Cave
- 2007.07.04 11:53 "Re: [Tiff] BigTIFF extension?", by Phil Harvey
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2007.07.04 20:52 "Re: [Tiff] BigTIFF extension", by Joris Van Damme
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2007.07.04 21:04 "Re: [Tiff] BigTIFF extension", by Toby Thain
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2007.07.05 05:07 "Re: [Tiff] BigTIFF extension", by Joris Van Damme
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2007.07.05 08:09 "Re: [Tiff] BigTIFF extension", by Andy Cave
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2007.07.05 13:40 "Re: [Tiff] BigTIFF extension", by Joris Van Damme
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2007.07.05 21:00 "Re: [Tiff] BigTIFF extension", by Chris Cox
- 2007.07.05 21:19 "Re: [Tiff] BigTIFF extension", by Joris Van Damme
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2007.07.05 22:13 "Re: [Tiff] BigTIFF extension", by Bob Friesenhahn
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2007.08.06 22:48 "RE: [Tiff] Transparency ... associated or unassociated alpha is morecompatible?", by Chris Cox
- 2007.08.06 22:32 "RE: [Tiff] Transparency ... associated or unassociated alpha is morecompatible?", by Chris Cox
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2007.08.06 22:48 "RE: [Tiff] Transparency ... associated or unassociated alpha is morecompatible?", by Chris Cox
- 2007.07.06 12:36 "Re: [Tiff] BigTIFF extension", by Gary McGath
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2007.07.05 21:00 "Re: [Tiff] BigTIFF extension", by Chris Cox
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2007.07.05 13:40 "Re: [Tiff] BigTIFF extension", by Joris Van Damme
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2007.07.05 08:09 "Re: [Tiff] BigTIFF extension", by Andy Cave
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2007.07.05 16:26 "Re: [Tiff] BigTIFF extension", by Joris Van Damme
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2007.07.05 04:19 "RE: [Tiff] BigTIFF extension", by Kemp Watson
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2007.07.04 16:56 "[Tiff] BigTIFF extension", by Kemp Watson
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2007.07.04 17:35 "Re: [Tiff] BigTIFF extension", by Andrew Brooks
- 2007.07.04 18:13 "Re: [Tiff] BigTIFF extension", by John Aldridge
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2007.07.04 18:25 "Re: [Tiff] BigTIFF extension", by Phil Harvey
- 2007.07.04 18:52 "Re: [Tiff] BigTIFF extension", by Toby Thain
- 2007.07.04 19:17 "Re: [Tiff] BigTIFF extension", by Frank Warmerdam
- 2007.07.05 20:31 "Re: [Tiff] BigTIFF extension", by Chris Cox
- 2007.07.05 15:14 "[Tiff] BigTIFF - Aware Aperio version diff", by Kemp Watson
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2007.07.04 17:35 "Re: [Tiff] BigTIFF extension", by Andrew Brooks
- 2007.07.05 04:54 "RE: [Tiff] BigTIFF extension", by Stephen Carlsen
- 2007.07.05 16:32 "RE: [Tiff] BigTIFF extension", by Kemp Watson
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2007.07.04 16:56 "[Tiff] BigTIFF extension", by Kemp Watson
- 2007.07.05 18:56 "Re: [Tiff] BigTIFF extension", by Toby Thain
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2007.07.05 04:19 "RE: [Tiff] BigTIFF extension", by Kemp Watson
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2007.07.05 05:07 "Re: [Tiff] BigTIFF extension", by Joris Van Damme
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2007.07.05 10:06 "Re: [Tiff] BigTIFF extension", by John Aldridge
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2007.07.05 13:23 "[Tiff] Re: Tiff Digest, Vol 38, Issue 12", by Gary McGath
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2007.07.05 13:56 "Re: [Tiff] Re: Tiff Digest, Vol 38, Issue 12", by Joris Van Damme
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2007.07.05 14:14 "Re: [Tiff] Re: Tiff Digest, Vol 38, Issue 12", by Gary McGath
- 2007.07.05 14:39 "Re: [Tiff] Re: Tiff Digest, Vol 38, Issue 12", by Joris Van Damme
- 2007.07.05 15:26 "Re: [Tiff] Re: Tiff Digest, Vol 38, Issue 12", by Andrey Kiselev
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2007.07.05 14:14 "Re: [Tiff] Re: Tiff Digest, Vol 38, Issue 12", by Gary McGath
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2007.07.05 13:56 "Re: [Tiff] Re: Tiff Digest, Vol 38, Issue 12", by Joris Van Damme
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2007.07.05 13:23 "[Tiff] Re: Tiff Digest, Vol 38, Issue 12", by Gary McGath
- 2007.07.05 16:51 "Re: [Tiff] BigTIFF extension", by Andrew Brooks
- 2007.07.09 16:11 "Re: [Tiff] BigTIFF extension", by Stephen Carlsen
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2007.07.04 21:04 "Re: [Tiff] BigTIFF extension", by Toby Thain
2007.07.06 01:46 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Chris Cox
(sorry this took a while, I've been redoing my compression test code for readability)
processing IMG_2948.Flowers1.pbm width: 3888, height: 2592, channels: 3, 16 bits per sample uncompressed size: 60466176 bytes
RGB, no predictor, interleaved, LZW: 72067928 bytes
RGB, no predictor, interleaved, ZIP: 55539057 bytes
RGB, no predictor, planar, LZW: 68826695 bytes
RGB, no predictor, planar, ZIP: 53133761 bytes YCC1, upLeftMinusMedian diff, bytesplit, planar, ZIP: 27850499 bytes YCC1, MED diff, bytesplit, planar, ZIP: 27852858 bytes
YCC1, paeth2 diff, bytesplit, planar, ZIP: 27981334 bytes
YCC1, paeth diff, bytesplit, planar, ZIP: 28005222 bytes YCC1, avgUpLeft diff, bytesplit, planar, ZIP: 28054460 bytes
All lossless, and I think I can still do better.
Theoretically, because the image is an interpolated result from a Bayer pattern sensor, I should be able to get close to 33% of the uncompressed size, and maybe a little smaller since it's only 14 bits/sample.
Chris
On 7/5/07 10:58 AM, "Stephen Carlsen" <sc42business@mac.com> wrote:
Separating 16-bit data into byte planes before compressing seems to be very effective. I get 40,882,548 bytes using the simple approach of applying LZW (with predictor) to the high byte plane and no compression on the low one.
-rw-r--r-- 1 sc sc 60483984 Feb 15 09:20 IMG_2948.Flowers1.tif
-rw-r--r-- 1 sc sc 40882548 Feb 28 14:25 Flowers1.Zap0.BP.LZW+NONE.tifI am usually have good results with Defalate.
For your file I have:
$ tiffcp -c zip:2 -r 2592 IMG_2948.Flowers1.tif IMG_2948.Flowers1-zip2.tif
$ ls -l IMG_2948.Flowers1*
-rw-r--r-- 1 dron dron 60483984 2007-07-04 22:31 IMG_2948.Flowers1.tif
-rw-r--r-- 1 dron dron 48096986 2007-07-05 14:38 IMG_2948.Flowers1-zip2.tifSo we got 25% here, that is quite good result I think.