XnView Software

Hello,

would like to use MP to view/zoom/sortout batches of numerous astronomical pictures : very dark pictures (left left side of histogram).

Xnview shows the FITS files as wished, very fast, with a medium stretch. But no possibility to enlarge the thumnails as I would like, and no possibility to open a picture separately (like double click in MP), nor full-screen.

XnviewMP allows opening files separately by double click, and full-screen view. But the FITS files appear very dark, with no stretch. Obviously the FITS files are not decoded in the same way in the 2 programs ? Not possible to use it as is.

In both cases (classic and MP), gamma correction does not work.

Would it be possible to have best of both : features of MP with viewing quality of classic ?

Same pictures seen in both softs :





Ben

strange, could you send me the fits file?

Here is a link to a file

https://www.dropbox.com/s/x832q80249k6g ... 01-001.fts

hope it works...

Ben

OK, I could get xnview classic work better (reinstall and apply all file formats). I can have single files opened and full screen view working.

Not so bad, but thumbnails are much too dark now...

I have the same in the 2 versions

I now have also the same views in both versions. Impossible to recreate the same viewing as in initial post, really dont know how I did it

But anyway, my initial problem remains that fits files viewing is much too dark, and can't find a way to view my files easily.

Basicaly for viewing my fits files, I currently use an veeeeery old version of acdsee. It uses a fits plugin wich applies an adaptative linear stretch, which delivers comfortable view for this type of very dark files... But this old soft is veeeery slow. Wish I could find something like this in xnview.

example of thumbnails on the same directory :

https://imageshack.com/i/0w3ac8j

https://imageshack.com/i/nrqllnj


Ben

are you able to save it with this old version using this linear stretch?

Sorry not possible to save in fits format. It is only a decode plugin.

Only thing I have is this plugin properties screen : one can choose several stretching profiles, and looks like the plugin uses the cblack and cwhite values which are in the fits header.

https://imageshack.com/i/git1sgj

Sorry but i means in PNG for example

It would be nice to have stretch curve applied to FITS thumbnails, they are pretty much unusable without any stretching applied