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We have a large number of GeoTIFF images that are georeferenced. Understandably, they are extremely large, due to the TIFF format.

Ideally we would like to use jp2 images, however this image type does not allow you to embed geospatial information, like TIFF.

Is there an alternative to TIFF that allows a more compressed format, and still allows for the geospatial information to be embedded into the image (so we only have to work with a single file)?

  • What types of values are you holding in your TIFF files? Are you using typical compression algorithms when making your TIFFs (e.g. 'deflate')? Is there a way of converting them to economize on space (e.g. Doubles with 1 decimal point can be multiplied by 10 and re-encoded as Int/Byte)? – Trevor J. Smith Mar 15 '18 at 13:37
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    Tiff format does not need to be uncompressed so it is not right to say "they are extremely large, due to the TIFF format". You can select your favorite compression method, for example LZW or DEFLATE for lossless compression, or JPEG for lossy, but more effective compression. You are also wrong when you write about JPEG2000 "this image type does not allow you to embed geospatial information". There is even an OGC standard about that opengeospatial.org/standards/gmljp2. – user30184 Mar 15 '18 at 13:38
  • @user30184, those links are fantastic. Thank you. – Map Man Mar 15 '18 at 14:11
  • @user30184 I think your comment has enough to qualify as an answer that I would upvote. – PolyGeo Mar 15 '18 at 21:03
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As commented by @user30184:

Tiff format does not need to be uncompressed so it is not right to say "they are extremely large, due to the TIFF format". You can select your favorite compression method, for example LZW or DEFLATE for lossless compression, or JPEG for lossy, but more effective compression. You are also wrong when you write about JPEG2000 "this image type does not allow you to embed geospatial information". There is even an OGC standard about that http://www.opengeospatial.org/standards/gmljp2.

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