2007.07.03 18:37 "[Tiff] BigTIFF extension?", by Phil Harvey

2007.07.05 17:58 "Re: [Tiff] 16-Bit-Per-Channel Lossless Compression", by Stephen Carlsen

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.tif

Best regards,


I 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.tif

So we got 25% here, that is quite good result I think.