.FIT files : XnviewMP vs Xnview ??

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Benji
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.FIT files : XnviewMP vs Xnview ??

Post by Benji » Sat Dec 21, 2013 7:30 am

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 :

Image

Image

Ben

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Re: .FIT files : XnviewMP vs Xnview ??

Post by xnview » Mon Dec 23, 2013 4:47 pm

strange, could you send me the fits file?
Pierre.

Benji
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Re: .FIT files : XnviewMP vs Xnview ??

Post by Benji » Mon Dec 23, 2013 5:10 pm

Here is a link to a file

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

hope it works...

Ben

Benji
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Re: .FIT files : XnviewMP vs Xnview ??

Post by Benji » Tue Dec 24, 2013 8:23 am

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...

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Re: .FIT files : XnviewMP vs Xnview ??

Post by xnview » Thu Dec 26, 2013 3:26 pm

I have the same in the 2 versions
Clipboard-1.jpg
Pierre.

Benji
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Re: .FIT files : XnviewMP vs Xnview ??

Post by Benji » Thu Dec 26, 2013 4:57 pm

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

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Re: .FIT files : XnviewMP vs Xnview ??

Post by xnview » Mon Dec 30, 2013 4:25 am

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

Benji
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Re: .FIT files : XnviewMP vs Xnview ??

Post by Benji » Mon Dec 30, 2013 8:12 am

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

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Re: .FIT files : XnviewMP vs Xnview ??

Post by xnview » Fri Jan 03, 2014 12:46 am

Sorry but i means in PNG for example
Pierre.

niccoc1603
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Re: .FIT files : XnviewMP vs Xnview ??

Post by niccoc1603 » Tue Mar 05, 2019 7:46 pm

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

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