2006.02.11 09:28 "[Tiff] Are tiled tiffs better for large images with large Dpi?", by michael Dorrian

2006.02.13 16:48 "Re: [Tiff] Are tiled tiffs better for large images with large Dpi?", by Bob Friesenhahn

using jpeg compression.

I think the comment points to the fact that for images that are natural targets for the

JPEG compression method, tiled TIFF files may be better suited.

Take your average photograph: A rectangle (tile) of pixels in the middle of the sky,

the sea, the grass, a wall, etc. contains a lot of redundancy, given that all the pixels

are of very similar color.

A strip, covering the scene from the left end to the right one, will be less uniform.

JPEG works on the level of tiny 8x8 rectangles. I don't see that it makes much difference if the image oranization is in strips or tiled when JPEG is used. The TIFF organization is macroscopic compared to the JPEG organization.

Bob
======================================
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/