image to waveform converter V1

#you have to install the pip library for reading images
import wave, struct, math, random
from PIL import Image
def addsample(S):
   data = struct.pack('<h', S)
   obj.writeframesraw(data)
img = Image.open("Silhouette-image-here.png")
img_BW = img.convert("L")
pixel_data_bw = img_BW.load()
width, height = img_BW.size
sampleRate = 44100.0 # hertz
duration = 1.0 # seconds, this does nothing
frequency = 500 # hertz, this will change the frequency
wavehight = 65534
pixel2wave = wavehight / height
obj = wave.open('sound.wav','w')
obj.setnchannels(1) # mono
obj.setsampwidth(2)
obj.setframerate(sampleRate)
for x in range(width):
   for i in range(-1,2,2):
      rawheight = 0
      for y in range(height):
          if img_BW.getpixel((x, y*i)) < 250:
             rawheight = (height/2-y)*i
             break
      for place_holder in range(int(sampleRate/(frequency/2))):
         addsample(int(rawheight * pixel2wave))
obj.close()
#this was created by DEVIXLER/Scar32