def filter(self, job):
img = job.img
mode = img.mode
if mode != '1':
return
len = self.averageSize * job.resolution / 25.4
len = int(len) | 1
thrsh = int(len*len * self.threshold / 100)
job.img = MeanFilter.fixedThresholdFilter(img, len, thrsh)
def filter(self, job):
img = job.img
mode = img.mode
if mode == '1':
return
elif mode == 'RGB':
img = img.convert('L')
elif mode != 'L':
raise SaneError('unexpected image mode: %s' % mode)
len = self.averageSize * job.resolution / 25.4
# we need an odd number of pixels as the square length
len = int(len) | 1
offs = self.averageOffset * 255.0 / 100.0
offs = int(round(offs))
img = MeanFilter.adaptiveThresholdFilter(img, len, -offs)
job.img = img.convert('1')