Fix imports according to Travis check

ocropus-dewarp

@@ -7,6 +7,7 @@ import argparse
 import sys
 
 import numpy as np
+from scipy.misc import imsave
 
 import ocrolib
 from ocrolib import lineest
@@ -45,7 +46,7 @@ for fname in inputs:
         line = ocrolib.read_image_gray(fname)
         lnorm.measure(np.amax(line)-line)
         line = lnorm.normalize(line,cval=np.amax(line))
-        scipy.misc.imsave(base+".dew.png",line)
+        imsave(base+".dew.png",line)
     except Exception as e:
         print("ERROR", e)
         continue

ocropus-linegen

@@ -127,7 +127,7 @@ def rgeometry(image,eps=0.03,delta=0.3):
     m = np.array([[1+eps*np.random.randn(),0.0],[eps*np.random.randn(),1.0+eps*np.random.randn()]])
     w,h = image.shape
     c = np.array([w/2.0,h/2])
-    d = c-dot(m,c)+np.array([np.random.randn()*delta,np.random.randn()*delta])
+    d = c-np.dot(m,c)+np.array([np.random.randn()*delta,np.random.randn()*delta])
     return interpolation.affine_transform(image,m,offset=d,order=1,mode='constant',cval=image[0,0])