Bike Map — Strava filter

Filter

Shared filter for every city. Keeps blue/purple route ink; drops pale water strokes. Use All heat candidates to check color picking, then Popular only for the network.

Show Original All heat candidates Popular only

keep darkest 53% of candidates Popular = the darkest heat pixels among candidates max brightness 552 Ignore pale ink above this when building candidates (water wakes) min_fragment_px 427 Drop speck noise smaller than this Strip label-shaped blobs

Georeference

Screenshot has no CRS — set W/S/E/N to match the visible map extent. Seeded from OSM export bbox; tighten until the overlay lines up (Madison is usually much tighter than the export).

City bounds

N W E S

Show OSM align overlay on heatmaps

Export

Loading…

City A —

City B —