Leginon

r17357 fixed this
jsloadfromjpg is the variable changed when the pop-up is switched to auto.

Testing (anyone)

1. Go to any myamiweb image viewer and open adjust.php
2. Change the mode from auto to manual.
3. Change Image Contrast to something obvious
4. Switch back to auto adjust.

Reviewed,
Anchi, not sure why the default value:

$currentfftbin='a';

Tested as well, can close out now.

I changed the default to corresponds better to what imcache creates as jpg, although it may still be debatable which we should keep as default. "a" option does not have any effect on the viewer image since they are small, but a smaller bin in that mode will allow users to see more details in the pop-up map when they click on the image. "b" option binning is not ideal at the moment as I had to use resampling on the resulting power spectrum and it looks pixelated. It however will allow a zoom effect in the viewer image, useful when user only interested in the lower resolution part. Since the cache does no binning in real space for any image smaller than 4096, and then bin in the power spectrum to 1024 to reduce the image size, neither option applies to it properly.