drewnoakes/metadata-extractor

Support Sigma X3F camera RAW format

Open

#76 opened on Jan 23, 2015

View on GitHub
 (16 comments) (0 reactions) (0 assignees)Java (2,411 stars) (470 forks)batch import
format-camera-rawhelp wanted

Description

Sigma's X3F files appear to contain Exif data, yet do not start with a regular TIFF preamble.

Also known as the Foveon X3 format or "FOVb".

References:

Contributor guide

Tech stack
java
Domain
backend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
JavaExif metadataX3F formatmetadata extractor library
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Examine the library's existing metadata reader implementations (e.g., JpegReader, TiffReader) in the source directory to understand the pattern for adding new format support. Use the referenced X3F specification PDF and the C implementation at github.com/rolkar/x3f to understand the binary structure. Review the issue comments for any maintainer guidance or previous attempts. Look for any existing tests for similar raw formats to use as a template.