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Digital Negative (DNG) is an open, lossless raw image format developed by Adobe and used for digital photography.It was launched on September 27, 2004. [1] The launch was accompanied by the first version of the DNG specification, [2] plus various products, including a free-of-charge DNG converter utility.
The raw file (left) before highlight and shadow details were recovered using the levels tool (right) When a camera saves a raw file it defers most of this processing; typically the only processing performed is the removal of defective pixels (the DNG specification requires that defective pixels be removed before creating the file [36]).
ORF files have to be copied to a PC's hard disk, and then one can resort to an extensive array of adjustments. The format allows users to achieve maximum precision by setting their own white balance and saturation values, which is not feasible in JPEG or TIFF. This approach is used by experienced professional and devoted amateur photographers.
The program is a command line tool which takes a list of raw image files to process, along with any image adjustment options desired. dcraw also serves as the basis for various high-level raw image-processing applications (such as viewers and converters), both free and open source software as well as proprietary software.
The Lumiere camera system also includes Lumiere-REC, a software development kit (SDK) that allows users to record image data and output to movie industry-standard CinemaDNG RAW file format." [15] [16] Ikonoskop (April 2009): Ikonoskop announces an HD digital cinema camera that records in CinemaDNG.
Free and open-source software portal; LibRaw is a free and open-source software library for reading raw files from digital cameras. It supports virtually all raw formats. It is based on the source code of dcraw, with modifications, [4] and "is intended for embedding in raw converters, data analyzers, and other programs using raw files as the initial data."
Camera file systems can usually be accessed by directly mounting them via the USB mass storage device class protocol, which exposes the file layout, whether DCF compliant or otherwise. Alternatively, and independent of DCF, files may be accessed via the Picture Transfer Protocol , which provides an object-oriented view and need not expose the ...
RawTherapee is a free and open source application for processing photographs in raw image formats such as those created by many digital cameras. [5] It comprises a subset of image editing operations specifically aimed at non-destructive post-production of raw photos and is primarily focused on improving a photographer's workflow by facilitating the handling of large numbers of images.