General discussion

Cannot find exact forum for your question ? Ask here

Data Flow Logic

Submitted by WoofGM on

It *appears* that LibRaw's normal processing sequence is to convert the mosaicked image pixel data into an intermediate (YUV?) representation, which may be manipulated for noise, etc; that in turn is converted into a picture-ready RGB (which apparently varies from the camera RGB (or camera CMY); that RGB in turn is gamma-adjusted and then formatted appropriately for the output file format.

• Is this approximately correct? Anything missing especially?

Forums: 

RGB_image = Get_RGB_Image(file)

Submitted by Andrew Cool on

Hi all,

First post here. I'm very much a Newbie in RAW image work, and have only a little knowledge of C.

I run a Canon 6D with a fisheye lens that creates allsky images every 45 seconds during the night.
That's a lot of images, which I need to convert to PNG format with embedded customised metadata (not EXIF).

I program in Interactive Data Language (IDL), and have written a program to create the necessary PNG files with
embedded metadata. However the current workflow is CR2=>TIFF=>PNG which takes a lot of time and a lot of disk space!

Forums: 

Output formats

Submitted by jostein on

I came across this library when searcing for possible solutions to interpolate dead or hot pixels in ML raw footage. The footage can easily be converted to dng images. I seems certain that LibRaw can read these dng files, so I might be able fix my sequence of image files. My question is, what file formats can the library write. Does LibRaw include code to write dng files?

Thanks,
Jostein

Forums: 

Any benchmarks?

Submitted by kanonka on

I'm building an time-lapse app that needs to convert CR2 files (from 5DM3) as fast as possible (using some automated/predefined/default settings, i.e. no user interaction). This is Windoze app (yeah, yeah, I know...). I tried dcraw (needed to dance around for couple hours to make it work in VS2012), and then Canon's native EDSDK. Both gave me about same speed (~6 to 6.3s CR2 to TIF conversion on a pretty good machine - I7-3960, 64GB RAM, SATA3-RAID0 SDD array, etc, etc).

Forums: 

Compatability Matrix

Submitted by jlpoole on

As a newcomer to this project, my first question is: do the libraries support my cameras.

I recommend that you have available at the main page at a high level a link to a table (in wiki?) of RAW formats that are supported &etc.

I have a Nikon D750 and 610, I should not have to spend more than a minute trying to determine if your libraries support these versions.

Forums: 

Pages

Subscribe to RSS - General discussion