def compare(self, blob):
greetings_query = Greeting.all().order('-date')
greetings = greetings_query.fetch(10)
i = 0
ds = {}
for greeting in greetings:
#w, h, pixels, metadata = reader.read()
temp = greeting.pic
reader1 = png.Reader(bytes=temp)
#w, h, pixels, metadata = reader.read()
png_w1, png_h1, pixels1, info1 = reader1.asDirect()
pixelcount = red = blue = green = 0
#pixelcount = png_w * png_h
i = 0
#print i
#print type(pixels)
reader = png.Reader(bytes=blob)
png_w, png_h, pixels, info = reader.asDirect()
#print pixels
for row in pixels:
j = 0
#print i
row1 = pixels1.next()
for pixel in png.group(row, info['planes']):
pixel1 = png.group(row1, info['planes'])[j]
red = red + abs(pixel[0] - pixel1[0])
green = green + abs(pixel[1] - pixel1[1])
blue = blue + abs(pixel[2] - pixel1[2])
j = j + 1
i = i + 1
ds[red + green + blue] = greeting
#print "difference",pixelcount,red,green,blue
return ds
def compare(self,blob):
greetings_query = Greeting.all().order('-date')
greetings = greetings_query.fetch(10)
i=0
ds={}
for greeting in greetings:
#w, h, pixels, metadata = reader.read()
temp=greeting.pic
reader1 = png.Reader(bytes=temp)
#w, h, pixels, metadata = reader.read()
png_w1,png_h1,pixels1,info1 = reader1.asDirect()
pixelcount = red = blue = green = 0
#pixelcount = png_w * png_h
i=0
#print i
#print type(pixels)
reader = png.Reader(bytes=blob)
png_w,png_h,pixels,info = reader.asDirect()
#print pixels
for row in pixels:
j=0
#print i
row1=pixels1.next()
for pixel in png.group(row,info['planes']):
pixel1= png.group(row1,info['planes'])[j]
red = red + abs(pixel[0]-pixel1[0])
green = green + abs(pixel[1]-pixel1[1])
blue = blue + abs(pixel[2]-pixel1[2])
j=j+1
i=i+1
ds[red+green+blue]=greeting
#print "difference",pixelcount,red,green,blue
return ds
def get(self):
url = self.request.get('url')
# go grab the image
result = urllib2.urlopen(url)
# resize to a 20px thumbnail
img = images.Image(result.read())
img.resize(width=20, height=20)
thumbnail = img.execute_transforms(output_encoding=images.PNG)
# read the thumbnail
r = png.Reader(bytes=thumbnail)
png_w, png_h, pixels, info = r.asDirect()
# analyze the pixel data
pixelcount = red = blue = green = 0
pixelcount = png_w * png_h
for row in pixels:
for pixel in png.group(row, info['planes']):
red = red + pixel[0]
green = green + pixel[1]
blue = blue + pixel[2]
data = {
'url': url,
'mean': {
'r':
red / pixelcount,
'g':
green / pixelcount,
'b':
blue / pixelcount,
'hex':
"#%02X%02X%02X" %
(red / pixelcount, green / pixelcount, blue / pixelcount)
}
}
if self.request.path == '/html':
data['debug'] = {
'w': png_w * 20,
'h': png_h * 20,
}
path = os.path.join(os.path.dirname(__file__),
'templates/image.html')
self.response.out.write(template.render(path, data))
elif self.request.path == '/json':
simplejson.dump(data, self.response.out)
def get(self):
url = self.request.get('url')
# go grab the image
result = urllib2.urlopen(url)
# resize to a 20px thumbnail
img = images.Image(result.read())
img.resize(width=20, height=20)
thumbnail = img.execute_transforms(output_encoding=images.PNG)
# read the thumbnail
r = png.Reader(bytes = thumbnail)
png_w,png_h,pixels,info = r.asDirect()
# analyze the pixel data
pixelcount = red = blue = green = 0
pixelcount = png_w * png_h
for row in pixels:
for pixel in png.group(row,info['planes']):
red = red + pixel[0]
green = green + pixel[1]
blue = blue + pixel[2]
data = {
'url' : url,
'mean': {
'r':red/pixelcount,
'g':green/pixelcount,
'b':blue/pixelcount,
'hex':"#%02X%02X%02X" %(red/pixelcount,green/pixelcount,blue/pixelcount)
}
}
if self.request.path == '/html':
data['debug'] = {
'w': png_w * 20,
'h': png_h * 20,
}
path = os.path.join(os.path.dirname(__file__), 'templates/image.html')
self.response.out.write(template.render(path, data))
elif self.request.path == '/json':
simplejson.dump(data,self.response.out)
