Update app.py

app.py

@@ -87,7 +87,7 @@ def warpImage(im, vx, vy, cast_uint8=True):
 
     warpI2 = np.zeros((height1, width1, nChannels))
     for i in range(nChannels):
-        f = interp2d(x, y, im[:, :, i], 'cubic')
+        f = interp2d(x, y, im[:, :, i], 'linear')
         foo = f(X, Y)
         foo[mask] = 0.6
         warpI2[:, :, i] = foo