Use RAW library to achieve automatic image property detection about hdr-plus HOT 15 CLOSED

Thanks! I will look into this!

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Actually, if input file has DNG format, then the following should be enough:

1. Obtain libexiv2:

apt install libexiv2-dev

2. Somewhere in CMakeLists.txt add:

find_package(Exiv2 REQUIRED)

3. Then read image dimensions as follows:

const Exiv2::Image exiv_image = Exiv2::ImageFactory::open(path);
exiv_image->readMetadata();
const Exiv2::ExifData exiv_data = image->exifData();
// Now read dimensions of Exif.Image
// Also there are chance that you have to choose another IFD, like "Exif.SubImage1.ImageWidth". 
// That may happen if DNG contains a JPEG thumbnail
const int width = exiv_data["Exif.Image.ImageWidth"].toLong(); 
const int height = exiv_data["Exif.Image.ImageHeight"].toLong();
// Also you have to read and use and consider during processing:
// * WhiteLevel and BlackLevel
// * CFAPattern
// * AsShotNeutral, ColorIlluminant1/ColorIlluminant2
// * Exif.Image.Orientation
// * and many more

Thus topic of this issue is wider than just reading of image dimensions.

Thank you!

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I am creating a prototype! Thanks for the info, very useful!

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Hi! Any progress on this? Can I help you somehow?

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Also, if you are looking for more bursts, I would recommend to use HDR+ dataset: https://hdrplusdata.org/

Images there have different bayer patterns, so you have to support them in demosaicing. White balance differs too.

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Sorry I have been really busy lately; I am sorry I have not provided updates as I have not had time to work on it. I might possibly be able to work on it later this week!

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I have been trying to implement it; no success though. Sorry for the lack of response. Any help would be appreciated!

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Could you please publish a branch with your current progress? Any progress and even if the code not clean.
Unfortunately I'm very limited in time :-( but hopefully will find time to look at the code on weekend.

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It fails to build currently; but I will post it later today!

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Sorry for not posting the code I think I know what is wrong with it!!

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Ok I uploaded the code at: https://github.com/Titaniumtown/hdr-plus

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Ok I uploaded the code at: https://github.com/Titaniumtown/hdr-plus

#36

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Thank you for fast merge, @Titaniumtown !

Also, there are imperfection in my implementation. I do not crop 'masked pixels' from RAW, and now they appear in the output. :-(

The problem is located here:
https://github.com/timothybrooks/hdr-plus/blob/master/src/InputSource.cpp#L34

I'll fix that and make another PR shortly.

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Bump! Are you going to make a pull request?

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Oh, sorry for that. :-(
I'll try to look at this on a weekend.
The thing is to copy pixels according to ActiveArea Raw tag.

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