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Questions tagged [dcraw]

dcraw is an open-source computer program which is able to read numerous raw image formats, typically produced by high-end digital cameras.

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How to open LinearDNG in ObjectiveC/C++?

I've trying to open LinearDNG file in my MacOS app. As far as I've investigated, that's not possible with CoreImage. So, the questions: Is it possible to open LinearDNG file as 16-bit/8-bit RGBA data with CoreImage? Is it possible to open LinearDNG…
olha
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Saving CFA array data as DNG

I'm looking for a simple method (preferably C/C++/Python or even a shell command) to save RAW CFA data from array to a DNG file. Something that would be like the following example in android…
Tal Klinger
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Saving raw CFA buffer to raw image

I'm trying to save a raw sensor buffer as a raw file using PIL. The buffer contains the CFA data (at 8-bit per pixel) and I'd like to save it as a raw CFA image that I'd be able to process later with and LibRaw (dcraw). I've tried using PIL to save…
Tal Klinger
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Converting *.raw to *.tiff

There was such a problem. Requires conversion of *.RAW files received the camera 4K NDVI CAMERA for GitUp G3. I use libraw.h, which contains dcraw.c. She works with the GitUp Git2 camera format. My file she does not recognize it and deduces…
user9422776
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Libraw - How can I get a image just with the red pixels using Libraw?

I'm using Libraw to a project which is about manipulating raw image files. I need to implement a feature that from a raw file I need to export an image just with the red pixels (and other 3 images for blue, green and green2 pixels). I've tried the…
Nuno Tavares
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Why isn't Octave reading in the entire 14 bits of my .NEF raw files?

I am using a Nikon D5200. I intend to do some image processing on the raw images shot with the camera. But I am encountering a problem when I read the raw images using GNU Octave. Rather than giving bit depth of 16 (since the .NEF are shot at 14-bit…
karthikeyan
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Loading and saving raw images

I'm looking to be able to read in pixel values as captured in a raw NEF image, process the data for noise removal, and then save the new values back into the raw image format maintaining all the metadata for later use. I've seen dcraw can read in…
Richard
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DNG gives me original picture not the edited one

When we use UFraw or other programs based on DCRAW we get the original picture, not the edited one. When our photograffer takes a picture in DNG. Afterwards edits on this picture are done with photoshop or Lightroom. Picture is saved again in…
Guy Forssman
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Extracted thumbnail from DNG image using DCRaw

I am using DCRaw as a command line utility to extract thumbnails from DNG images. The thumbnail colors are way off and inverting them will not help. I took a photo with my Camera and the preview looks like this: Here is how I call DCRAW: Settings…
Zaid Amir
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Better thumbnail creation of raw images

I'm building a web application (RoR) that manages images that are in raw image format. I need to create thumbnail/web versions of these images to be displayed on the site. Currently, I'm using imagemagick, which delegates to dcraw to produce the…
cgat
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How to get the raw data of CR2 image using LibRaw(c++)

LibRaw is a library for reading RAW files from digital photo cameras (CRW/CR2, NEF, RAF, DNG, MOS, KDC, DCR, etc.; virtually all RAW formats are supported). I want to know how to use LibRaw to get the raw data of a Canon CR2 image. typedef…
Chan Xiang
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