fsspec / fsspec/kerchunk

TIFF handling

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#146 5 comments 9 reactions 0 assignees View on GitHub

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Dominant language
Python
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Merged PRs (30d)
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Description

https://github.com/cgohlke/tifffile provides a way to get kerchunk references out of individual TIFF files and sometimes sequences (see long thread: https://github.com/cgohlke/tifffile/issues/125). It also provides access to TIFF tags, which, for the case of GeoTIFF (or COG) will contain coordinates information. We should write a wrapper to persist these tags to the output and, optionally, generate appropriate coordinates.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Read the linked tifffile issue #125 and the tifffile reference-generation behavior first. Then identify the kerchunk wrapper entry point and determine how TIFF tags should be persisted and how optional GeoTIFF or COG coordinates should be represented. Done means the wrapper supports individual TIFFs and applicable sequences with tag persistence and optional coordinate generation.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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