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How to report on compression method used in a GeoTiff?

22 days ago
May 29, 2025
2 replies
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+13

nicholas
Contributor
115 replies

I am building a workbench that has a GeoTiff Reader, and uses the RasterPropertyExtractor and CoordinateSystemExtractor transformers to report on various qualities of the input image. The bounds, the cell sizes, etc.

I am hoping for a transformer that reports on the compression method of the input image. LZW or JPEG or something else?

Something similar to CoordinateSystemExtractor but instead a CompressionExtractor

Best answer by takashi

Hi @nicholas ,

GeoTIFF reader reads the compression method as a format attribute called “geotiff_compression_method”, if the source GeoTIFF file was compressed.

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takashi
7683 replies
Best Answer
22 days ago
May 29, 2025

Hi @nicholas ,

GeoTIFF reader reads the compression method as a format attribute called “geotiff_compression_method”, if the source GeoTIFF file was compressed.

+13

nicholas
Author
Contributor
115 replies
17 days ago
June 3, 2025

Thankyou @takashi

I took your advice.

I also added a NulAttributeMapper for those cases when the image is not compressed.

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How to report on compression method used in a GeoTiff?