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a moving obstructed Captcha solution in google apps
avishalom/eppur-si-mouve
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this is a small app to generate animated gifs from texts.
obstructions and backgrounds may be added and animated as well
so these can be used as captchas.
see eppur-si.appspot.com for a demo.
this can be used as a secure (two-step) or non secure online image generation.
(the url of the first step includes the word, see that for a demo.)
it uses the
images2gif python module. (but not all of it . - thanks to the authors of that..)
imagesH.py is uses that library and includes code for generating obfuscations for the animated captcha.
sample usage
in the main itself
def main():
for aye in range(2):
v=VISCHA('Example 32',aye,{'dx'=4,'shape'=1})
with open('ffexample{}.gif'.format(aye),'w') as FP:
v.writeImage_fp(FP)
these are the possible parameters parameters.
{ 'font' : 0,
'font_size' : 36,
'screen_d' : 14,
'screen_r' : 16,
'wobble' : 0,
'dx' :0 ,
'dy' :0,
'duration' : 10,
'width' : 300,
'height' : 120,
'wordCount' : 10,
'shape' : 0,
'bgColor' : 255,
'bgwColor' : 100,
'screenColor': 155,
'fgColor' : 100 },
muove.py contains the google app code that receives the requests as described in the appspot page , and dispatches the right calls.
this is setup to work with google app engine.
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