2020.02.09 12:14 "[Tiff] Writing image as strips", by David C. Partridge

2020.02.09 17:51 "Re: [Tiff] Writing image as strips", by Bob Friesenhahn

I worked it out... forgot to enable ZIP compression in the build!

Glad to hear that!

In my experience, there is usually more performance obtained from using the LZW compression algorithm which is included in libtiff.

For the type of images you are using, it is worth setting TIFFTAG_PREDICTOR appropriately for the best compression.

Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt