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28 lines
674 B
Python
28 lines
674 B
Python
import crcmod
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import colorsys
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from PIL import ImageFont
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font = ImageFont.truetype("/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans.ttf", 34)
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def sanitize_filename(fname):
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# find the first character outside range [32-126]
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for i,c in enumerate(fname):
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if ord(c) < 32 or ord(c) > 126:
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break
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return fname[:i]
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def get_complement(r,g,b):
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r = r/255.0
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g = g/255.0
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b = b/255.0
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h,l,s = colorsys.rgb_to_hls(r, g, b)
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if h > 0.5:
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h -= 0.5
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else:
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h += 0.5
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r,g,b = colorsys.hls_to_rgb(h, l, s)
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return int(r*255), int(g*255), int(b*255)
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crc24_func = crcmod.mkCrcFun(0x1864CFBL) # polynomial from libgcrypt
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