from PIL import Image
fname = "ARMY0.PIC"
width = 320
height = 43200*8//(4*width)

transform = {0 :(0x00,0x00,0x00),
             1 :(0x00,0x00,0x7F),
             2 :(0x00,0x7F,0x00),
             3 :(0x00,0x7F,0x7F),
             4 :(0x7F,0x00,0x00),
             5 :(0x7F,0x00,0x7F),
             6 :(0x7F,0x7F,0x00),
             7 :(0x7F,0x7F,0x7F),
             8 :(0x00,0x00,0x00),
             9 :(0x00,0x00,0xFF),
             10:(0x00,0xFF,0x00),
             11:(0x00,0xFF,0xFF),
             12:(0xFF,0x00,0x00),
             13:(0xFF,0x00,0xFF),
             14:(0xFF,0xFF,0x00),
             15:(0xFF,0xFF,0xFF)}

content = bytearray(open(fname,'rb').read())
im = Image.new("RGB", (width,height))

data = []

for b in content:
    bh = b>>4 & 0x0f
    bl = b & 0x0f
    data.append(transform[bh])
    data.append(transform[bl])

im.putdata(data)

im.save(fname +".png", "PNG")