def s2i(jsonsig, input_image=BLANK_IMAGE, pincolor=(0,0,255),
force_no_sig_image=False, nosig_image=NO_SIG_IMAGE):
if force_no_sig_image==True:
im = Image.open(nosig_image)
return im
#Decode valid json or return None
try:
l=json.loads(jsonsig)
except(exceptions.ValueError):
im = Image.open(nosig_image)
return im
#Make sure its a signature or return None
if not l[0].has_key('lx') or not l[0].has_key('my'):
im = Image.open(nosig_image)
return im
#create a blank image from out template
im = Image.open(input_image)
#create a drawing object
draw = ImageDraw.Draw(im)
#iterate over our list of points and draw corresponding lines
for i in l:
draw.line((i['lx'], i['ly'], i['mx'], i['my']), fill=pincolor, width=1)
#delete our draw object (cleanup and free the memory)
del draw
# save image
#im.save(output_image, "PNG")
return im
def s2if(jsonsig, output_image="signature.png", input_image=BLANK_IMAGE,
pincolor=(0,0,255)):
#Decode valid json or return None
try:
l=json.loads(jsonsig)
except(exceptions.ValueError):
return None
#Make sure its a signature or return None
if not l[0].has_key('lx') or not l[0].has_key('my'):
return None
#create a blank image from out template
im = Image.open(input_image)
#create a drawing object
draw = ImageDraw.Draw(im)
#iterate over our list of points and draw corresponding lines
for i in l:
draw.line((i['lx'], i['ly'], i['mx'], i['my']), fill=pincolor, width=1)
#delete our draw object (cleanup and free the memory)
del draw
# save image
im.save(output_image, "PNG")
#get its path
BASE_DIR = os.path.dirname(os.path.abspath(output_image))
IMAGE_PATH = os.path.join(BASE_DIR, output_image)
return IMAGE_PATH
