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jcelaya / hdrmerge

HDR exposure merging
http://jcelaya.github.io/hdrmerge/
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Support for Linear DNG #209

Open etchelepi opened 3 years ago

etchelepi commented 3 years ago

Trying to open a linear DNG file or an X3F file gives an error.

"Unable to open file: /Input_1.DNG"

Can provide an example file if needed (Very Large Files)

libraw is able to open these files in other tools.

heckflosse commented 3 years ago

hdrmerge only supports mosaiced images by design.

etchelepi commented 3 years ago

That's a little disappointing to hear.

Reading the descp:

HDRMerge creates raw images with an extended dynamic range. It does so using either multiple exposure-bracketed raw files (any camera), or a single raw file which contains multiple exposure-bracketed frames (Fuji EXR and some Pentax cameras). It can import any raw format supported by LibRaw, and outputs a DNG 1.4 image with floating point data. The output raw is built from the less noisy pixels of the input, so that shadows maintain as much detail as possible. This tool also offers a GUI to remove ‘ghosts’ from the resulting image.

And DNG and X3F are supported in Libraw: https://www.libraw.org/supported-cameras

So it isn't clear that it wouldn't be supported to an unfamiliar user.

It still seems desirable for camera's that don't produce mosaic'd outputs to be able to be merged into a HDR image.

heckflosse commented 3 years ago

So it isn't clear that it wouldn't be supported to an unfamiliar user. It still seems desirable for camera's that don't produce mosaic'd outputs to be able to be merged into a HDR image.

I agree, but currently the code is written to merge mosaiced files to a mosaiced output. That does not mean, noone could change/improve that. But it's just the way it is atm

Bra1nsen commented 2 years ago

@etchelepi did you find a good alternative? I would like to know