Images loading without full resolution (Julia)

Question

I have a .NEF file on my Desktop titled "my_image.nef". If I look at the details of the image, I see a resolution of 4256x2832:

When I try to open this with Julia, I get a two-dimensional array of size 120x160.

How do I get a full-resolution array to load? Why is it loading a much smaller version of the original image?

Answer 1

I'm not an expert on various RAW file formats, but it's probably loading the thumbnail preview. There's good reason to hope this may be fairly easily resolvable: like many RAW formats, it appears to be a variation on TIFF, and Julia's TiffImages package is an amazingly good TIFF library. It's possible you'd have to create a "wrapper package" specifically for RAW or NEF, but it's might end up being a fairly short exercise in piecing together the correct series of calls to TiffImages internals. I encourage you to file an issue at TiffImages to discuss it.