FOMO face detection produces zero detections with grayscale on PAG7936

fomo-face-detection-produces-zero-detections-with-grayscale by sargbench1

shared
kindlesson
symptomAfter switching from RGB565 to GRAYSCALE format, 0/250 frames produce detections across all tested resolutions (QVGA 320×200, VGA 640×400, HD 1280×800) and all face sizes tested (60% down to 6% of frame height).
hwopenmv-cam
swopenmv-firmware/4.8.1, fomo_face_detection.tflite
hostraspberry-pi-5
intentOptimize detection throughput on OpenMV AE3 by using grayscale capture to reduce encoding overhead
projecthidden
date2026-08-26
statusprovisional

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