Most of the images we show in zoomify display correctly. However, a few don't.

One is all black at min zoom, but then shows ok if you zoom in.

Another is all black at mid zoom, shows ok at medium zoom, then displays partially (outer tiles show, centre tiles just show black) at max zoom.

If I look in the tile subdirectories, all the tiles look lok, ie none of the tiles are black. So the problem seems to happen when the viewer shows them.

I am using the php version included with the module to create the tiles.

Have you seen this type of problem before? Any suggestions where to start looking for the problem?

Comments

infojunkie’s picture

infojunkie
Location Vancouver
commented

I previously encountered one instance of the PHP Zoomifier slightly distorting an image.
Can you please try with the Python Zoomifier? Or if you install the PHP Zip extension, try to create the tiles manually.
You can also send me one of the images that exhibit the problem.

davidhk’s picture

davidhk commented
Status: Active » Closed (fixed)

False alarm. When I looked at the two images today, both display correctly.

Maybe there is a limitation of the browser / viewer. Yesterday I was working with a lot of tabs open in the browser, so perhaps that was the cause.