from PIL import Image
from PIL import ImagePalette

palettedata = []

for v in range(32):
	r = ((v>>3)&3)*0x55
	g = ((v>>1)&3)*0x55
	b = (v&1)*0xff
	palettedata.extend((r,g,b))

for v in range(32):
	r = ((v>>3)&3)*0x55
	g = ((v>>1)&3)*0x55
	b = 0x80+(v&1)*0x7f
	palettedata.extend((r,g,b))

palettedata.extend([0] * (768-len(palettedata)))


palimage = Image.new("P", (1,1))
palimage.putpalette(palettedata)


im = Image.open("finch.jpg")

im2 = im.resize((40,480)).quantize("P", palette=palimage)
im2.save("finch3.png")

pal = im2.getpalette()

im3 = Image.new("RGB", (16*im2.width,im2.height))
for y in range(im2.height):
	for x in range(im2.width):
		v = im2.getpixel((x,y)) & 31
		r,g,b = pal[3*v:3*(v+1)]
		for xx in range(16):
			im3.putpixel((x*16+xx,y),(r,g,b))

im3.save("finch4.png")

with open("finch.img", "wb") as f:
	f.write(im2.tobytes())
	f.close()