`unwrap_error_phase_closure`: use user-defined `connCompMinArea` by Alex-Lewandowski · Pull Request #1336 · insarlab/MintPy

Alex-Lewandowski · 2025-03-28T20:23:10Z

Make correct_unwrap_error_phase_closure use user-defined connCompMinArea when labeling connected components. It currently always uses the default.

Description of proposed changes

Fixes #1335

adds a cc_min_area arg to correct_unwrap_error_phase_closure so it can be passed to cc_obj.label(min_area=cc_min_area).
- If min_area is not passed label, it uses the default of 2.5e3

Reminders

Fix User-defined connCompMinArea not used during unwrapping error correction with phase_closure method #1335
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Summary by Sourcery

Modify the phase closure error correction function to allow user-defined minimum area for connected component labeling

New Features:

Introduce a new optional parameter cc_min_area to control the minimum area threshold for connected component labeling

Bug Fixes:

Fix the default connected component labeling by adding a configurable minimum area parameter

Enhancements:

Add flexibility to the phase closure error correction by allowing custom minimum area for connected component labeling

Summary by Sourcery

Modify the phase closure error correction function to allow user-defined minimum area for connected component labeling

New Features:

Add an optional cc_min_area parameter to correct_unwrap_error_phase_closure function to control the minimum area threshold for connected component labeling

Bug Fixes:

Enable flexible configuration of minimum area for connected component labeling, addressing the default hard-coded value

Enhancements:

Improve function flexibility by allowing custom minimum area parameter for connected component labeling

…rea when labeling connected components

sourcery-ai · 2025-03-28T20:23:16Z

Reviewer's Guide by Sourcery

This pull request modifies the correct_unwrap_error_phase_closure function to allow users to specify the minimum area for connected component labeling via the cc_min_area argument. This change provides more flexibility in the phase closure error correction process.

Sequence diagram for `correct_unwrap_error_phase_closure` with user-defined `connCompMinArea`

sequenceDiagram
  participant user as User
  participant correct_unwrap_error_phase_closure as correct_unwrap_error_phase_closure
  participant conncomp_obj as conncomp.connectComponent

  user->>correct_unwrap_error_phase_closure: Call correct_unwrap_error_phase_closure(ifgram_file, common_regions, water_mask_file, ccName, dsNameIn, dsNameOut, cc_min_area)
  correct_unwrap_error_phase_closure->>conncomp_obj: cc_obj = conncomp.connectComponent(conncomp=cc, metadata=stack_obj.metadata)
  correct_unwrap_error_phase_closure->>conncomp_obj: cc_obj.label(min_area=cc_min_area)
  conncomp_obj-->>correct_unwrap_error_phase_closure: labelImg
  correct_unwrap_error_phase_closure->>correct_unwrap_error_phase_closure: measure.regionprops(cc_obj.labelImg)
  correct_unwrap_error_phase_closure-->>user: Returns corrected unwrap phase

File-Level Changes

Change	Details	Files
Modified the `correct_unwrap_error_phase_closure` function to accept a `cc_min_area` argument, allowing users to specify the minimum area for connected component labeling.	Added `cc_min_area` as an argument to the `correct_unwrap_error_phase_closure` function. Passed the `cc_min_area` argument to the `cc_obj.label()` function. Added `cc_min_area` to the `run_unwrap_error_phase_closure` function.	`src/mintpy/unwrap_error_phase_closure.py`

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#1335	Ensure the `correct_unwrap_error_phase_closure` function uses the user-defined `connCompMinArea` value when labeling connected components, instead of the default value.	✅
#1335	The code should use the user-defined `connCompMinArea` value when labeling connected components during phase closure unwrapping error correction.	✅

Possibly linked issues

User-defined connCompMinArea not used during unwrapping error correction with phase_closure method #1335: The PR fixes the issue by adding a cc_min_area arg to correct_unwrap_error_phase_closure so the user-defined connCompMinArea can be passed to the connected component labeling function.

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sourcery-ai

Hey @Alex-Lewandowski - I've reviewed your changes - here's some feedback:

Overall Comments:

Consider adding a check to ensure cc_min_area is a positive value.

Here's what I looked at during the review

🟢 General issues: all looks good
🟢 Security: all looks good
🟢 Testing: all looks good
🟢 Complexity: all looks good
🟢 Documentation: all looks good

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src/mintpy/unwrap_error_phase_closure.py

Alex-Lewandowski · 2025-03-28T23:25:37Z

Overall Comments:

Consider adding a check to ensure cc_min_area is a positive value.

Good thought, but maybe it would be best to check in the unwrap_error_phase_closure and unwrap_error_bridging CLIs?

+ objects.conncomp.label_conn_comp: skip removing small objects if there is only one label + cli.unwrap_error_phase_closure: add checking for --num-sample and --min-area

yunjunz

LGTM. Thank you @Alex-Lewandowski!

Make correct_unwrap_error_phase_closure use user-defined connCompMinA…

81f72d1

…rea when labeling connected components

Alex-Lewandowski added the bug label Mar 28, 2025

Alex-Lewandowski marked this pull request as ready for review March 28, 2025 21:00

sourcery-ai bot reviewed Mar 28, 2025

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src/mintpy/unwrap_error_phase_closure.py Show resolved Hide resolved

Alex-Lewandowski requested a review from forrestfwilliams March 28, 2025 21:02

yunjunz self-requested a review April 1, 2025 08:40

conncomp: skip remove_small_objects if num_label <= 1

88133bf

+ objects.conncomp.label_conn_comp: skip removing small objects if there is only one label + cli.unwrap_error_phase_closure: add checking for --num-sample and --min-area

yunjunz approved these changes Apr 1, 2025

View reviewed changes

yunjunz changed the title ~~Unwrap error correction with phase_closure should use user-defined connCompMinArea~~ unwrap_error_phase_closure: use user-defined connCompMinArea Apr 1, 2025

yunjunz merged commit 4bbca8c into main Apr 1, 2025
8 checks passed

yunjunz deleted the bug/unw_err_phase_closure_use_min_cc_size branch April 1, 2025 09:38

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`unwrap_error_phase_closure`: use user-defined `connCompMinArea`#1336

`unwrap_error_phase_closure`: use user-defined `connCompMinArea`#1336
yunjunz merged 2 commits intomainfrom
bug/unw_err_phase_closure_use_min_cc_size

Alex-Lewandowski commented Mar 28, 2025 •

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Sequence diagram for correct_unwrap_error_phase_closure with user-defined connCompMinArea

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Alex-Lewandowski commented Mar 28, 2025 •

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Sequence diagram for `correct_unwrap_error_phase_closure` with user-defined `connCompMinArea`