27 lines
883 B
Markdown
27 lines
883 B
Markdown
# Tip Deconvolution
|
|
|
|
Reconstruct the true surface from a tip-broadened measured AFM image. Uses morphological grey erosion (Villarrubia algorithm). Equivalent to gwy_tip_erosion (tip.c).
|
|
|
|
## Inputs
|
|
|
|
| Name | Type | Required | Description |
|
|
|------|------|----------|-------------|
|
|
| field | DATA_FIELD | Yes | Measured AFM image |
|
|
| tip | DATA_FIELD | Yes | Tip shape field, e.g. from Tip Model or Blind Tip Estimate |
|
|
|
|
## Outputs
|
|
|
|
| Name | Type | Description |
|
|
|------|------|-------------|
|
|
| surface | DATA_FIELD | Reconstructed true surface |
|
|
|
|
## Controls
|
|
|
|
None.
|
|
|
|
## Limitations
|
|
|
|
- The tip pixel size must match the image pixel size exactly; mismatched calibrations will produce incorrect results.
|
|
- Deconvolution can only reduce tip broadening; it cannot recover information lost below the noise floor.
|
|
- Very large tip sizes are slow due to the nested loop over all tip pixels.
|