Ornamental Fish Color Brightness Assessment Analysis

Problem

Ornamental fish color fading can vary with lighting, feeding, and temporary stress, so a single saturation threshold or visual check is unreliable. This is especially true when fish in the same tank differ in color depth, or when breeding marriage colors darken or stress causes temporary dullness. This skill quantifies whether side-view images deviate from the expected color range for the selected species subtype.

How It Works

• Input gating: requires a white card, gray card, or ColorChecker in frame, side-view capture, and ≥1080p; otherwise returns color_signal_unreliable.
• Color quantification: applies white-balance correction, lighting normalization, and body segmentation, then extracts trunk HSV-S, HSV-V, mean/std, and dominant hue distribution.
• Baseline comparison: matches the species_subtype baseline, computes palette similarity and z-score.
• Output: returns vibrancy_score_0_100, 7d/30d trends, info/important/urgent/warning alert levels, and a report keyed by tank_id + fish_id + evaluation timestamp.

Boundaries and Notes

It provides color analytics and neutral management suggestions only; it does not diagnose disease, prescribe medication or dosages, or recommend specific feed brands. If the white reference is missing, segmentation confidence is low, or lighting is poor, retake, relight, or place a white card first. For persistent severe deviation or multiple fish in the same tank dulling at once, consult a local ornamental-fish vet or experienced hobbyist.