[SYSTEMDS-3650] I/O Support Cloud-Optimized GeoTIFF #2195
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…c. in order to parse actual image data. Extended IFDTagDictionary to accomodate that.
…floating point, rational, signed.
…od for reading bytes, now fully based on Java built-in
… (we seem to have handled that wrong)
…alues fit into the 4 bytes)
…aned logic for multibands, sorting if appendtoSparse was used.
…builder of tileProcessor, parallel cases adjusted
…ading # Conflicts: # src/main/java/org/apache/sysds/runtime/io/ReaderCOGParallel.java
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Summary
Add support for reading COGs (Cloud-optimized GeoTIFFs). It enables both sequential and parallel reading.
Details
This PR adds the
cogformat to thereadfunction in DML. In general, any tiled TIFFs with no compression or Deflate compression can be read. The implementation is tested with a number of different combinations for number of tiles, bands, data types etc.All functionality is implemented directly in Java without additional dependencies. A small section in the DML language reference now mentions the COG format.