I previously enquired about the proper way to export a whole slide image that was too large to fit in a 2^31 Java array (Qupath unable to write image. The solution was to used the
Tile exporter, which I did. However, there is something mysterious about the resulting tiles. When they are zoomed to fit inside a window in Fiji, there is some noticeable corruption of the image data at the bottom edge. However, it disappears when I zoom in, but only if the magnification is increased to 100 % of the original image size or beyond.
I made a gif that shows the problem in action.
If I open the jpeg in the standard Windows 10 photo viewing app, then the corruption is not present (and the image looks a lot less grainy at low magnification, e.g. about 4 % as shown in screenshot below) compared to the same magnification in Fiji. So what gives? Should I be worried or can I just assume all is peachy?