lineest.py 文件源码

def measure(self,line):
        h,w = line.shape
        smoothed = filters.gaussian_filter(line,(h*0.5,h*self.smoothness),mode='constant')
        smoothed += 0.001*filters.uniform_filter(smoothed,(h*0.5,w),mode='constant')
        self.shape = (h,w)
        a = argmax(smoothed,axis=0)
        a = filters.gaussian_filter(a,h*self.extra)
        self.center = array(a,'i')
        deltas = abs(arange(h)[:,newaxis]-self.center[newaxis,:])
        self.mad = mean(deltas[line!=0])
        self.r = int(1+self.range*self.mad)
        if self.debug:
            figure("center")
            imshow(line,cmap=cm.gray)
            plot(self.center)
            ginput(1,1000)