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add line correction and scar removal nodes

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matei jordache
2026-03-27 21:57:43 -07:00
parent fa9aeaa4a9
commit e10a30c08f
6 changed files with 742 additions and 2 deletions
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6
GWYDDION_FEATURE_GAP.md
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@@ -8,8 +8,8 @@ Reference for future implementation. Grouped by value to typical SPM workflows.
| # | Feature | Gwyddion Source | Description |
|---|---------|---------------|-------------|
| 1 | Line Correction | linecorrect.c, linematch.c | Row-by-row median/polynomial alignment. Essential for raw SPM data with scan-line artifacts. |
| 2 | Scar Removal | scars.c | Detect and interpolate scan-line defects (horizontal streaks). |
| ~~1~~ | ~~Line Correction~~ | ~~linecorrect.c, linematch.c~~ | ~~Row-by-row median/polynomial alignment. Essential for raw SPM data with scan-line artifacts.~~ **DONE** |
| ~~2~~ | ~~Scar Removal~~ | ~~scars.c~~ | ~~Detect and interpolate scan-line defects (horizontal streaks).~~ **DONE** |
| 3 | Facet Leveling | facet-level.c | Orient the dominant surface facet to horizontal. Better than plane level for terraced/stepped surfaces. |
| ~~4~~ | ~~Morphological Mask Ops~~ | ~~mask_morph.c~~ | ~~Erode, dilate, open, close on grain masks. Needed to clean up thresholded masks.~~ **DONE** |
| ~~5~~ | ~~1D FFT Filter~~ | ~~fft_filter_1d.c~~ | ~~Bandpass/lowpass/highpass filtering of LINE profiles.~~ **DONE** |
@@ -73,11 +73,13 @@ For reference, these Gwyddion equivalents are already covered:
| Plane Level | level | level.c |
| Polynomial Level | level | polylevel.c |
| Fix Zero | level | level.c (fix_zero) |
| Line Correction | level | linecorrect.c, linematch.c |
| Gaussian Filter | filters | filters.c (gaussian) |
| Median Filter | filters | filters.c (median) |
| Edge Detect | filters | edge.c (sobel, prewitt, laplacian, LoG) |
| 1D FFT Filter | filters | fft_filter_1d.c (lowpass, highpass, bandpass, notch) |
| 2D FFT Filter | filters | fft_filter_2d.c (lowpass, highpass, bandpass, notch) |
| Scar Removal | filters | scars.c |
| Statistics | analysis | stats.c |
| Height Histogram | analysis | linestats.c (dh) |
| 2D FFT | analysis | fft.c |