Improve sharpness of mbtiles output from custom TMS source

[ramyaragupathy]

Using the 5cm imagery we generated using drones in Amlapura area of Bali, attempted created a mbtiles for offline access in ODK.

However the output was pixelated and did not match the resolution input. Attaching a screenshot of the output mbtile and the actual image

screenshot of the 5cm imagery from oam	mbtiles output from fmtm

@spwoodcock @manjitapandey @Sujanadh

[spwoodcock]

Fixed by osm-fieldwork update https://github.com/hotosm/osm-fieldwork/releases/tag/0.13.0

Will be installed before next release but blocked by #1646

[manjitapandey]

This is the resolution of mbtiles for now. I guess this has been significatly improved than previous.

[spwoodcock]

Depends on if this was tested with a satellite provider or a drone TMS provider.

The image above looks reasonably low resolution, so I imagine this is esri or bing. The issue was with drone TMS data that has zoom levels great than 18/19.

I have verified this is fixed though, so all good to close 👍

[manjitapandey]

I have tested it with drone TMS provider copying the same TMS layer ramya was using of Bali. So i think we need to reconsider this issue before closing.

[spwoodcock]

You tested with the TMS provider and the imagery was still blurry?

[manjitapandey]

Yeah the same TMS tile of Bali, The imagery has been improved by still blurry like above.

[manjitapandey]

@spwoodcock , any success around this issue. I can also test on other multiple tms layers to validate.

[spwoodcock]

mbtile output is working nicely:

I'm also checking pmtiles, but mbtiles was the main requirement here for ODK Collect, so closing 👍

[manjitapandey]

Yeah, I tested on other mb tiles. The resolution is much higher and satisfactory now.