Flip spectra images?

[Gasman]

Hi folks

I stripped my spectroscope down yesterday and unbeknown to me I replaced the grating the wrong way round and last night took a hundred fits files and now need to flip them all 180 degs ;-(( Is there a way of mass flipping them all or do Ihave to flip each one individually please ;-(((((

Cheers

Steve

[David Smith]

In Linux I suspect something like imagemajick can do this in command line. A quick search turns up a few suggestions, something like this

convert image.jpg -rotate 90 image-rotated.jpg

then just replace the file name(s) with wild cards

This might be a good place to start

http://www.howtogeek.com/109369/how-to-quickly-resize-convert-modify-images-from-the-linux-terminal/

I use imagemajick to create animations and other general batch processing of image files. Not had the need to batch rotate images before though.

Not sure in Windoze.

[Joseki]

There's BIMP (GIMP plugin) for batch editing, and Phatch (stand alone batch editor), that should do the job 'out of the box' (and would work on Windows), a google search threw up a number of different options.

[Gasman]

Thanks for the info guys but I not sure these packages will work with fits files?? Will try them tonight.

Cheers

Steve

[Joseki]

Oh right, sorry I don't know about fits files

Sent from my GT-I9300 using Tapatalk

[David Smith]

Have to admit I am not entirely sure as I have never tried it but FITS is listed as supported on the imagemajick site

http://www.imagemagick.org/script/formats.php

Table towards the bottom with supported formats listed inc FITS

[Merlin66]

Steve,

Does that mean you were/are using the unblazed 1st order??

ImageJ seems to do batch flips (transforms) of fits files.....

http://imagej.nih.gov/ij/

[robin_astro]

How About the 

MIRRORXY2 [iN] [OUT] [NUMBER]

command in IRIS? 

http://www.astrosurf.com/buil/iris/tutorial17/doc30_us.htm

It batch flips a set of images in both X and Y so they will also be upside down as well but that should not be a problem

(Not sure if MIRRORX2 works which would just flip them left to right)

Robin

[robin_astro]

Or even better in ISIS (I knew I had seen it somewhere!)

Tools, Image Processing 1, Image Permutation, Horizontal

Is there no end to what  ISIS can do ? 

Robin

[Gasman]

Thanks Ken!.

Cheers for that Robin I did wonder if ISIS had that feature somewhere. I did think of trying to process them as is and then flip the final image but ISIS would read the argon/neon image wrong for the calibration. MIght be possible doing that with BASS, flip the final image and then calibrate it!. Its only until I have time to adjust the grating again.

best

Steve

[Merlin66]

Steve,

Yes you can flip both the reference and target in BASS prior to corrections and calibrating.

[Gasman]

Lifesaver Robin thanks . Had to fiddle with the numbering a bit but ISIS did exactly what I wanted, wonder if it makes tea too .

cheers

Steve

[jnp]

There is also the Bulk Image manipulation screen in BASS to do flips and math operations to multiple fits. You are spoilt for choice!