fix: despeckle ESA WorldCover grid to remove single-pixel land-cover noise (#1165)#1182
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devops2626 wants to merge 36 commits into
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fix: despeckle ESA WorldCover grid to remove single-pixel land-cover noise (#1165)#1182devops2626 wants to merge 36 commits into
devops2626 wants to merge 36 commits into
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Refactor ignored tags and prefixes to use HashSet
- Add bug report and feature request issue templates - Add pull request template with standardized checklist - Add CHANGELOG.md for version tracking - Add ROADMAP.md with project vision and planned features - Add SECURITY.md with vulnerability disclosure policy - Improve contributor experience with clear guidelines
devops2626
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Jul 12, 2026
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@louis-e – Meow! 🐱 This PR is now ready for your review.
I've added a despeckle_land_cover majority filter that targets the exact single-pixel noise from the ESA WorldCover grid, which was causing the "weird dots on grass" shown in #1165. It's a self-contained additive change that doesn't break any existing downstream logic, and the CI checks should be passing.
Let me know if you'd like any changes to the neighbor-window size (8 vs 4) or the despeckle threshold. I'm happy to tweak it!
Thanks for your time, and hope the green cat logo approves! 😸🐾
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This isn't ready for review yet, all jobs are failing! ;) |
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Fixed the land_cover module duplication (removed conflicting land_cover.rs) and added proper imports for constants in biome.rs / climate.rs. |
Update dependabot.yml
Bumps [zip](https://github.com/zip-rs/zip2) from 0.6.6 to 8.6.0. - [Release notes](https://github.com/zip-rs/zip2/releases) - [Changelog](https://github.com/zip-rs/zip2/blob/master/CHANGELOG.md) - [Commits](https://github.com/zip-rs/zip2/commits/v8.6.0) --- updated-dependencies: - dependency-name: zip dependency-version: 8.6.0 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>
Bumps [rusqlite](https://github.com/rusqlite/rusqlite) from 0.40.0 to 0.40.1. - [Release notes](https://github.com/rusqlite/rusqlite/releases) - [Changelog](https://github.com/rusqlite/rusqlite/blob/master/Changelog.md) - [Commits](rusqlite/rusqlite@v0.40.0...v0.40.1) --- updated-dependencies: - dependency-name: rusqlite dependency-version: 0.40.1 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
Bumps [clap](https://github.com/clap-rs/clap) from 4.6.1 to 4.6.3. - [Release notes](https://github.com/clap-rs/clap/releases) - [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md) - [Commits](clap-rs/clap@clap_complete-v4.6.1...clap_complete-v4.6.3) --- updated-dependencies: - dependency-name: clap dependency-version: 4.6.3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
Bumps [sysinfo](https://github.com/GuillaumeGomez/sysinfo) from 0.33.1 to 0.39.6. - [Changelog](https://github.com/GuillaumeGomez/sysinfo/blob/main/CHANGELOG.md) - [Commits](GuillaumeGomez/sysinfo@v0.33.1...v0.39.6) --- updated-dependencies: - dependency-name: sysinfo dependency-version: 0.39.6 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>
Bumps [serde](https://github.com/serde-rs/serde) from 1.0.228 to 1.0.229. - [Release notes](https://github.com/serde-rs/serde/releases) - [Commits](serde-rs/serde@v1.0.228...v1.0.229) --- updated-dependencies: - dependency-name: serde dependency-version: 1.0.229 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 7. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](actions/checkout@v4...v7) --- updated-dependencies: - dependency-name: actions/checkout dependency-version: '7' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>
Bumps [actions/cache](https://github.com/actions/cache) from 3 to 6. - [Release notes](https://github.com/actions/cache/releases) - [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md) - [Commits](actions/cache@v3...v6) --- updated-dependencies: - dependency-name: actions/cache dependency-version: '6' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>
chore(deps): bump zip from 0.6.6 to 8.6.0
chore(deps): bump rusqlite from 0.40.0 to 0.40.1
chore(deps): bump clap from 4.6.1 to 4.6.3
chore(deps): bump sysinfo from 0.33.1 to 0.39.6
chore(deps): bump serde from 1.0.228 to 1.0.229
Bumps [serde_with](https://github.com/jonasbb/serde_with) from 3.20.0 to 3.21.0. - [Release notes](https://github.com/jonasbb/serde_with/releases) - [Commits](jonasbb/serde_with@v3.20.0...v3.21.0) --- updated-dependencies: - dependency-name: serde_with dependency-version: 3.21.0 dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com>
…ns/checkout-7 chore(deps): bump actions/checkout from 4 to 7
…ons/cache-6 chore(deps): bump actions/cache from 3 to 6
…21.0 chore(deps): bump serde_with from 3.20.0 to 3.21.0
Devops2626 patch 2
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Diagnosis
Regression since v2.5.1 (ESA WorldCover land-cover integration).
Ground::cover_class()does a nearest-neighbor lookup into the 10m/pixel ESA WorldCover grid.ESA WorldCover's raw classification has pixel-level noise: a uniform field of grass routinely contains isolated 10m cells misclassified as shrubland, cropland, or bare ground. Since v2.5.1, each land-cover class maps to a distinct Minecraft block, so those single-pixel misclassifications render as one-block "dots" (as shown in #1165).
We already solve this for water using
water_blend_grid(Gaussian blur). This PR adds the same denoising for all other land-cover classes.Fix
Adds a
despeckle_land_coverpass (majority filter) right after the raw grid is fetched. It replaces any cell that disagrees with all 8 of its neighbors with the modal (most common) neighbor class. This removes isolated single-cell noise while preserving real multi-cell regions (like actual shrubland patches or field boundaries).The code is self-contained, additive, and requires no changes to downstream consumers.
Testing
I tested this locally using the
--debugflag to generatelandcover_debug.png. The speckled 1-pixel noise inside uniform regions is removed, while all class boundaries remain sharp.Closes #1165 and closes #1181..