A pure rust library for reading / writing DNG files providing access to the raw data in a zero-copy friendly way. It also contains code for reading / writing a human-readable YAML representation of DNG tags / the IFD structure. The library also supports interacting with DCP (Dng Camera Profile) files, but that is on a best-effort basis since I was unable to find official documentation on that.
This library also contains a pair of cli tools for converting a DNG into a human-readable YAML representation and back.
These are kind of similar to dcpTool's -d and -c but use YAML rather than XML.
```shell
$ target/debug/dump_dng -h
Dump the IFD metadata of a TIFF / DNG image to a human readable yaml representation
Usage: dump_dng [OPTIONS]
Arguments:
Options: -f, --dump-rational-as-float convert Rational and SRational types to float for better readability (this is lossy) -e, --extract extract strips, tiles and larger blobs into a directory. also write the ifd chain as a yaml file there -h, --help Print help information -V, --version Print version information
```
```shell $ target/debug/compile_dng -h Assemble a DNG file from some of other dng files, plain raw files and metadata
Usage: compile_dng [OPTIONS] --yaml
Options:
--yaml
-b, --big-endian
-h, --help Print help information
-V, --version Print version information
```
example:
shell
$ target/debug/dump_dng src/yaml/testdata/axiom_beta_simulated.dcp -f
UniqueCameraModel: "AXIOM Beta"
ProfileName: "AXIOM Beta spectral simulated"
ProfileEmbedPolicy: allow copying
CalibrationIlluminant1: StandardIlluminantA
ColorMatrix1: [
2.698, -1.8779, 0.3348,
0.493, 0.0325, 0.2078,
0.2645, -0.1286, 0.3895,
]
CalibrationIlluminant2: D65Illuminant
ColorMatrix2: [
2.5136, -1.2873, -0.1654,
0.2275, 0.5494, 0.0929,
0.1393, 0.0697, 0.4617,
]
This library should be in a usable state for many applications. However, a more high-level API is not implemented (yet?). For that (and support for other raw formats) you might want to use rawloader.