Generating NTSC with Arduino
Friday, March 12th, 2010Convert an indexed grayscale image (16-color) to a list of hex values for use in arduino program.
png2avr.py
# copy-it-right
import sys
from PIL import Image
def main():
image =Image.open("robert_index.png")
out_f = open("robert_index.txt", "w")
#image = Image.open(sys.argv[1])
assert image.mode == 'P', 'image must be indexed'
#sys.stdout.write(chr(int('11111100', 2)))
for i, px in enumerate(image.getdata()):
if(i%160==0):
out_f.write('\n// '+str(i/160))
print('\n// '+str(i/160))
#sys.stdout.write('\n')
out_f.write(hex(px)+', '),
print(hex(16-px)+', '),
#sys.stdout.write(hex(px))
#print('.')
out_f.close()
if __name__ == '__main__':
main()
Indexed 16 Color Grayscale Image (160×120x4bits)
Displayed through the Arduino to NTSC video
Thanks to MeowJapan.
