Would you like some datasets compressed with ERDAS ECW/JP2 SDK?

[VirtualTim]

I work for Hexagon Geospatial, so if it would help this project I could provide some JP's compressed with our SDK.
I see you have Kakadu compressed datasets, so I just thought hat maybe files compressed with an alternate compressor could be useful.

Some more information from the official download site.

[bitsgalore]

@VirtualTim Yes, that would actually be really useful, thanks!

[VirtualTim]

I've attached some datasets that I think will be useful. I did this instead of creating a PR, as I wasn't really sure about things like naming conversions.

Here's why I included each dataset:

Dataset	Reason
nullinput.uint8-rgb-null-2tileparts	null pattern (synthetic dataset) with:   max Lplt = 2^5-1   max plt's per tile-part = 2 This was created to be a small (for unit tests) dataset that's more representative of the larger datasets (>~4GB) the ERDAS APOLLO GeoCompressor can create.
sandiego3i_5.2	Created with ECW JPEG 2000 SDK v5.2.0.172
sandiego3i_5.5	Created with ECW JPEG 2000 SDK v5.5.0.2042 (latest 2021 release)
sandiego1m_null.jp2	Created with ECW JPEG 2000 SDK v3.5.0.4 Has "holes" to demonstrate alpha

A lot of this is probably too much information, but I figured I'd let you decide what's superfluous.

jpylyzer-test-files.zip

[VirtualTim]

Oh also nullinput.uint8-rgb-null-2tileparts has plt markers.

[bitsgalore]

@VirtualTim Hi Tim, I had completely forgotten about this, but I just added the files to the repo (with a 2.5 year delay!):

c2676fd

I also included them in the Jpylyzer unit tests.

Thanks again for making these images available!