LibRaw technical support

Stable LibRaw versions: technical support, errors, API questions

Static build of libraw for windows 64bit

Submitted by Vahagn on

Hello,

I understand this is probably a naive question, but I've been trying to make a static build using /mt flag in visual studio. I downloaded LibRaw 18 from the git repository and built the libjpeg-turbo, added the paths to libraries in LibRaw solution and I am trying to build it. I continually get this error

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image for " histograms: libraw, dcraw, Capture NX-D"

Submitted by CEDavila on

Hopefully, the histogram images will post now...

Hi all,

I wish to convert raw .NEF files taken with a Nikon D40. I compared Nikon's Capture NX-D utility, libraw, and dcraw. First, I generated .tiff files with each of these. For NX-D, I converted without making any adjustments. With libraw, I used:

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Libraw and file descriptors

Submitted by amandra on

With recent changes to Android, simple files are an endangered species and we have to rely on file descriptors. My c++ is rudimentary at best, but if I follow the docs and code to open a file descriptor I'd need to use:

LibRaw::open_datastream

I'd pass in an extension of LibRaw_abstract_datastream that would very closely resemble the existing:

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exp_shift doesn't work as expected

Submitted by mko on

I wanted to use the following values to shift exposure :

    imgdata.params.exp_correc = 1;
    imgdata.params.exp_shift = 1.0;
    imgdata.params.exp_preser = 0;

but only value 1.0 <= exp_shift <= 8.0 seems to result in a different exposed output ( lighter ).
All images created with setting 0.25 <= exp_shift < 1.0 look the same ( not darker ) ?

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LibRaw on Visual Studio with Target Machine x64

Submitted by imnet4all on

I can understand it is a naive question but I have searched enough and was wondering if it is at all possible to run libraw on a visual studio project with platform and target machine set to x64. Everything works fine when platform and target machine are x64, but it complains of unresolved externals whenever they 're set to x64. I wanted to integrate it into a large project which has been aimed for 64 bits so far anyway. Thank you in advance.

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