Digital Negative (DNG) file support

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Évaluation

Difficulté
5/5
Temps estimé
Plus d'une semaine
Accessibilité débutants
35/100
Type d'issue
Fonctionnalité
Clarté
Plutôt claire
Activité
Active
Stack technique
cpp, python
Domaine
computer-vision

Piste de recherche

Start by reading the DNG specification linked in the issue and tracing how nvImageCodec handles the shown Python file-reading example. Identify the codec entry point and what DNG decoding requires; the issue does not name relevant source files or tests. Done means DNG files can be transcoded with GPU acceleration and the reported error is resolved.

Rédigé par le modèle d'indexation à partir du texte de l'issue.

Description

enhancement
Is this a new feature, an improvement, or a change to existing functionality?

New Feature

How would you describe the priority of this feature request

Nice to have (e.g. Adoption is possible, the feature will enhance the use-case even more).

Please provide a clear description of problem this feature solves

Could nvImageCodec support Digital Negative (DNG) files?

DNG is a standard format for camera raw files, the latter which capture unprocessed or minimally processed data directly from the camera sensor.

The standard's specification can be found here

Feature Description

As a software engineer, I would like to be able to have GPU acceleration for .dng image transcoding so that I can include these images into my computer-vision/machine-learning frameworks.

Describe your ideal solution

with open("my_dng_file.dng", "rb") as in_file:
data = in_file.read()

At present, this code errors with cuDevicePrimaryCtxRelease failed: 4

Describe any alternatives you have considered

I have looked into the rawpy library, but it does not provide GPU acceleration.

Additional context

I would be keen to investigate a solution to this problem if someone could point me towards an "entry point" :)

Check for duplicates
  • I have searched the open bugs/issues and have found no duplicates for this bug report
Langage dominant
Jupyter Notebook
Étoiles
164
Forks
26
Merge moyen
27 min
PR mergées (30 j)
1

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