[Digikam-users] png in light table after export from original jpg is not the same size

[Gary Wilson Jr.]

The original jpg photo downloaded from camera:
dimensions: 5184x3456
size: 11.0 MiB

If I load this picture into the image editor, then export to png,
compression 9, I get:
dimensions: 5184x3456
size: 30.7 MiB

For comparison, if I open the original jpg in gimp, then export to
png, compression 9, I get:
dimensions: 5184x3456
size: 30.3 MiB

Now, the issue I'm seeing is that if I open the original jpg and the
png created with digikam into digikam's light table, both scaled to
fit, the jpg is at 31% scaled and the png is at 63% scaled; however,
if I add the png created with gimp into the light table it scales at
the same 17% as the original image.

Any ideas as to why the digikam png file is acting like it shrank?  If
I open all three files in gimp they all scale to the same size when at
the same scale percentage.

Thanks,
Gary