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makedng(1) General Commands Manual makedng(1)

NAME

makedng - pack raw sensor data into a dng file with metadata

SYNOPSIS

makedng [OPTIONS] input-file output-file

OPTIONS := { -w width | -h height | -p pixfmt | -m make,model | -s software | -o orientation | -n r,g,b | -b r,g,b | -e program }

DESCRIPTION

Read raw sensor data from a file and generate a DNG 1.4 compliant file with the metadata to correctly render the file.

OPTIONS

-w width, -h height, --width width, --height height

Set the width and height of the source data. This is a required option.

-p pixelfmt, --pixfmt pixelfmt

Set the pixelformat for the source data. This accepts a V4L2 fourcc code or the V4L constant name like "RGGB" and "SRGGB8". This is a required option.

-m make,model, --model make,model

Set the camera Make and Model as a comma separated string.

-s software, --software software

Set the name of the camera software used to take the picture.

-o orientation, --orientation orientation

Set the orientation of the image data as a number from 1-8 from the DNG specification.

-c dcp-file, --calibration dcp-file

Load a DCP calibration file and append the color profile to the final DNG.

-n red,green,blue, --neutral red,green,blue

Set the neutral whitepoint for the picture as the 3 floating point gain values.

-b red,green,blue, --balance red,green,blue

Set the analog sensor gain for the three color channels as three comma separated floats.

-e program, --program program

Set the exposure program in the EXIF data using one of the program numbers from the DNG spec.

-t seconds, --exposure seconds

Set the exposure time for the picture in seconds (eg. 0.01 for 1/100)

-i iso-speed, --iso iso-speed

Set the ISO speed rating for the picture

-f fnumber, --fnumber fnumber

Set the aperture size, or f-number of the picture (2.2 for f/2.2)

-l focal-length,crop-factor | -l focal-length, --focal-length len,crop, --focal-length len

Set the focal length for the lens. If no crop factor for the system is supplied a 35mm full-frame sensor is assumed.

PIXEL FORMATS

The pixel format argument accepts the following values:

8-bit bayer formatted data, this matches with MIPI RAW8:

RGGB, SRGGB8: RG,GB bayer pixel data
GRBG, SGRBG8: GR,BG bayer pixel data
GBRG, SGBRG8: GB,RG bayer pixel data
BGGR, SBGGR8: BG,GR bayer pixel data

10-bit bayer formatted data. transmitted as 16-bit format in 8 bytes:

RG10, SRGGB10: RG,GB bayer pixel data
BA10, SGRBG10: GR,BG bayer pixel data
GB10, SGBRG10: GB,RG bayer pixel data
BG10, SBGGR10: BG,GR bayer pixel data

10-bit bayer formatted data packed into 5 bytes, this matches with MIPI RAW10:

pRAA, SRGGB10P: RG,GB bayer pixel data
pgAA, SGRBG10P: GR,BG bayer pixel data
pGAA, SGBRG10P: GB,RG bayer pixel data
pBAA, SBGGR10P: BG,GR bayer pixel data

12-bit bayer formatted data, transmitted as 16-bit format in 8 bytes:

RG12, SRGGB12: RG,GB bayer pixel data
BA12, SGRBG12: GR,BG bayer pixel data
GB12, SGBRG12: GB,RG bayer pixel data
BG12, SBGGR12: BG,GR bayer pixel data

12-bit bayer formatted data packed into 6 bytes, this matches with MIPI RAW12:

pRCC, SRGGB12P: RG,GB bayer pixel data
pgCC, SGRBG12P: GR,BG bayer pixel data
pGCC, SGBRG12P: GB,RG bayer pixel data
pBCC, SBGGR12P: BG,GR bayer pixel data

16-bit bayer formatted data:

RG16, SRGGB16: RG,GB bayer pixel data
GR16, SGRBG16: GR,BG bayer pixel data
GB16, SGBRG16: GB,RG bayer pixel data
BYR2, SBGGR16: BG,GR bayer pixel data

EXPOSURE PROGRAMS

The defined exposure programs in the DNG specification are:

  • 0: Undefined exposure program (default)
  • 1: Full manual program
  • 2: Full auto program
  • 3: Aperture priority
  • 4: Shutter priority
  • 5: Creative program
  • 6: Action program (fast shutter)
  • 7: Portrait program (Large aperture)
  • 8: Landscape program (Small aperture)
2025-11-11 makedng