Single-file app: load HDF5 (/images, /labels) + query image → Stage A shortlist → Stage B shifted IoU refine.
Includes minimal progress, worker status, error logging, and a Top-64 overlay visualizer.
Must contain /images (N,64,64) uint8 and /labels (N) ints.
Resized to 64×64 (nearest) and binarized; optionally dilated.
0 disables
0 = auto

Status

Idle.
Stage A
Stage B

Results

Select a dataset + query image.
Top 64 templates with query mask overlay (red, semi-transparent)

Log

(empty)