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added PIL overlay example

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András Veres-Szentkirályi 2013-06-20 10:44:32 +02:00
parent 443e80dc7b
commit 70246de369
1 changed files with 17 additions and 0 deletions
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examples/overlay.py Normal file
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#!/usr/bin/env python
"""
Demonstrates adding text overlay (callsign, RSV, etc.) using PIL
See example output received by slowrx at the following URL:
http://vsza.hu/c6fa52b2c7b20320bdab2da15877f0efbd466e67d37c8d124a557367de9380da.png
"""
from PIL import Image, ImageFont, ImageDraw
from grayscale import Robot8BW
img = Image.open("160x120bw.png")
font = ImageFont.load_default()
draw = ImageDraw.Draw(img)
draw.text((0, 0), "HA5VSA", (255,255,255), font=font)
sstv = Robot8BW(img, 44100, 16)
sstv.write_wav("overlay.wav")