ERAS headshot crop-preview comparison — reproduction bundle

Date: 2026-10-01. Synthetic coordinate-grid PNGs only; no applicant image or ERAS portal.

Three cases were run in the live Residency Headshot crop tool: portrait H50/V50/Z100, portrait H50/V75/Z130, and landscape H80/V50/Z120. Each preview was compared with the actual JPEG downloaded by the tool. After removing the preview border and resizing the JPEG to 299 × 419 with Pillow 12.3.0 Lanczos, red and green marker centers were located and their Euclidean displacement measured. Largest displacement: 1.415 normalized pixels.

This measures crop alignment in these cases only. It does not test pixel identity, other browsers, color, or MyERAS/MyIntealth/program display. See measurements.json for exact values.
