Function scan_line

modules/basic_shape_processor.py:214–222

(pixels, limit)

    detected_widths = []
    
    def scan_line(pixels, limit):
        if len(pixels) < limit + 1:
            return None
        diffs = np.abs(np.diff(pixels[:limit+2].astype(int)))
        threshold = 35  # 提高阈值，减少误检（原值20太敏感）
        candidates = np.where(diffs > threshold)[0]
        if len(candidates) > 0:
            return candidates[0] + 1
        return None

    num_samples = 5