Kodak RAW to EXR: conversion guide

Source · Kodak RAW
Target · EXR

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What happens when you convert Kodak RAW to EXR?

RAW development

Kodak RAW needs camera- and file-aware development to produce a rendered EXR image. White balance, exposure, camera colour interpretation and, where applicable, demosaicing determine that rendering. The destination does not retain the original RAW development latitude. No development settings or camera support are implemented yet.

Developing into an HDR workspace

RAW capture values are not automatically a finished SDR or HDR picture. An HDR-capable destination can hold a developed high-range image, but exposure, camera calibration, colour space and highlight handling determine which captured information reaches it. The future engine defines that development; neither sensor values nor a wider dynamic range are guaranteed to survive.

Transparency

The target can store an alpha channel, but converting an opaque image does not create transparent areas. Removing a background is a separate editing step.

Encoding mode

EXR supports lossy and lossless codecs. Choose one for the sample types and required precision; .exr alone does not guarantee exact channel preservation. EXR permits different encoding modes or container representations. Its format name alone does not promise lossless output, a quality setting or a size reduction. The future engine must choose a supported codec and sample representation; inspect the target’s compression notes below.

Kodak RAW

Source

Kodak RAW

Kodak Digital Camera Raw (DCR / KDC)

Compression: Depends on variantTransparency: NoMetadata: Capture metadata

A registry group for Kodak DCR and KDC raw images, with decoding requirements specific to the camera.

Explore Kodak RAW format →
EXR

Target

EXR

OpenEXR

Compression: Lossy & losslessTransparency: YesMetadata: Typed header attributes, Chromaticities

HDR raster data for rendering and compositing, with named channels and lossless or lossy codecs.

Explore EXR format →

Is Kodak RAW → EXR right for you?

Good choice when

  • EXR fits your delivery use: Render passes & HDR compositing.
  • You need a developed image for a non-RAW application.
  • You need a developed image for an HDR working pipeline.
  • Your receiving application supports the required EXR variant.
  • You need a EXR-compatible workflow that can hold transparency added in a separate edit.

Probably not when

  • You need the original sensor data and freedom to redevelop it.
  • You need untouched camera samples rather than a rendered image.
  • You need a guaranteed quality or file size before encoder settings exist.
  • You require identical samples without a defined colour and precision policy.
  • You expect automatic background removal or transparency.

Kodak RAW to EXR conversion details

RAW development
Kodak RAW needs camera- and file-aware development to produce a rendered EXR image. White balance, exposure, camera colour interpretation and, where applicable, demosaicing determine that rendering. The destination does not retain the original RAW development latitude. No development settings or camera support are implemented yet.
Developing into an HDR workspace
RAW capture values are not automatically a finished SDR or HDR picture. An HDR-capable destination can hold a developed high-range image, but exposure, camera calibration, colour space and highlight handling determine which captured information reaches it. The future engine defines that development; neither sensor values nor a wider dynamic range are guaranteed to survive.
Transparency
The target can store an alpha channel, but converting an opaque image does not create transparent areas. Removing a background is a separate editing step.
Encoding mode
EXR supports lossy and lossless codecs. Choose one for the sample types and required precision; .exr alone does not guarantee exact channel preservation. EXR permits different encoding modes or container representations. Its format name alone does not promise lossless output, a quality setting or a size reduction. The future engine must choose a supported codec and sample representation; inspect the target’s compression notes below.
Sample precision & colour
Source and target sample models can differ in precision, channel layout, colour space and transfer function. Lossless compression only preserves the samples actually encoded; a precision reduction or colour conversion can already change them. The future engine defines numeric mapping, orientation and colour conversion; canonical depth facts are listed below where available.
Metadata & colour
Format support does not guarantee that an export preserves metadata or colour profiles. Retention and colour handling depend on the future converter; its engine is not implemented yet.
Compression
Kodak RAW: Depends on variant → EXR: Lossy & lossless Kodak RAW: ExifTool and LibRaw document DCR/KDC recognition and camera support. They do not justify one global bit depth or compression claim across both extensions. Treat the registry group as navigation identity while retaining the actual file type and model for processing. EXR: EXR supports lossy and lossless codecs. Choose one for the sample types and required precision; .exr alone does not guarantee exact channel preservation.
Transparency
Kodak RAW: No → EXR: Yes
Colour depth
Kodak RAW: Camera and recording mode → EXR: HALF 16 / FLOAT 32 / UINT 32
HDR
EXR: Floating-point working values
Multiple images
EXR: Multipart
Sensor data
Kodak RAW: Raw development required
Dimensions
Pixel dimensions, page geometry, rendering resolution, resizing and orientation need explicit converter policies. The future engine has not defined them yet.
Metadata
Kodak RAW: Capture metadata → EXR: Typed header attributes, Chromaticities. Which fields are copied, rewritten or omitted will depend on the future engine; retention is not implemented yet.

Common questions

Will EXR still be an editable camera RAW?

Kodak RAW needs camera- and file-aware development to produce a rendered EXR image. White balance, exposure, camera colour interpretation and, where applicable, demosaicing determine that rendering. The destination does not retain the original RAW development latitude. No development settings or camera support are implemented yet.

Will RAW to HDR preserve the original sensor values?

RAW capture values are not automatically a finished SDR or HDR picture. An HDR-capable destination can hold a developed high-range image, but exposure, camera calibration, colour space and highlight handling determine which captured information reaches it. The future engine defines that development; neither sensor values nor a wider dynamic range are guaranteed to survive.

Will the background become transparent?

The target can store an alpha channel, but converting an opaque image does not create transparent areas. Removing a background is a separate editing step.

Are bit depth and colour values guaranteed to match?

Source and target sample models can differ in precision, channel layout, colour space and transfer function. Lossless compression only preserves the samples actually encoded; a precision reduction or colour conversion can already change them. The future engine defines numeric mapping, orientation and colour conversion; canonical depth facts are listed below where available.

Will metadata and colour profiles be retained?

Kodak RAW: Capture metadata → EXR: Typed header attributes, Chromaticities. Which fields are copied, rewritten or omitted will depend on the future engine; retention is not implemented yet.