Flip images (pre & post meridian flip) for Blink

[Ara Jerahian]

This is more of a request for guidance than an issue.  I normal blink my raw files after each session to see how many subs I may need to cull out for wind, shakes, bad focus, etc.  Of course, some of my images are upside down because of meridian flips.  I've been thinking it would be nice for Blink to automatically flip these images (only for viewing) so all the raw subs are in the same orientation, but I have to assume this isn't implemented for a good reason.

So, I ask here, how do folks Blink such a combination of images?  Do you do a batch rotation to the individual files before blinking?  Am I missing some obvious option, process, or script that would do this easily for me?  Other than for the Blink process, PI star aligns everything and rotates images appropriately during registration, so I basically just need to have them flipped temporarily for Blink before I put any time & effort in calibration.

Thoughts and guidance would be appreciated.

Regards,
Ara

[pfile]

at a slight cost of computation time, i usually do this backwards - use SFS to eliminate the frames that have bad statistical properties, then calibrate/register and then run blink, eliminating the frames that SFS could not understand were bad (like those with double stars or weird gradients...)

or i just suck it up and deal with the rotations; usually i need to be pretty zoomed in on the images in blink to find the kinds of artifacts i'm looking for anyway, so the rotation doesn't bother me as much.

rob

[Ara Jerahian]

Thanks Rob...I guess I'll suck it up

[pfile]

i guess aside from this, i don't know how Blink would know to automatically rotate the images - i don't think there's any real standard for indicating the pier side in the FITS header. i guess with all the astrometric stuff in PI now it might be able to tell what side of the pier the frame was taken from just from the location and time in the fits header but that seems like a lot of work to calculate.

rob