def rle_decode_pcx_style(data):
    out = bytearray()
    i = 0
    n = len(data)
    while i < n:
        b = data[i]
        if (b & 0xC0) == 0xC0:
            count = b & 0x3F
            i += 1
            if i >= n:
                break
            val = data[i]
            out.extend([val]*count)
            i += 1
        else:
            out.append(b)
            i += 1
    return bytes(out)

base = "/home/aria/kellogg_remake/extracted_pre/"
for fn in ["TONY.BOB","O.BOB","A.BOB"]:
    data = open(base+fn,"rb").read()
    dec = rle_decode_pcx_style(data)
    from collections import Counter
    c = Counter(dec)
    print(fn, "distinct values:", len(c), "min", min(dec), "max", max(dec))
    top = c.most_common(10)
    print("  top10:", top)
    below16 = sum(v for k,v in c.items() if k<16)
    print(f"  fraction of pixels <16: {below16/len(dec):.3f}  total_pixels={len(dec)}")