Aligns a PPL (plane-polarized light) image to an XPL (cross-polarized light) reference image using SIFT feature matching. Designed for images of the same slide taken after remounting (e.g., adding polarizing filters). Automatically validates that scale and rotation are reasonable and falls back to translation-only if needed.
Arguments
- ppl_path
Path to PPL image
- xpl_path
Path to XPL image (reference)
- output_path
Path to save aligned PPL image. If a directory, generates filename from input.
- method
Alignment method: "similarity" (rotation+scale+translation with automatic fallback to translation if checks fail) or "translation" (translation only, no rotation/scale)