Word vertical histogram is returning NaN

[FloCiaglia]

Issue with the new json data (data from the body section of the form):

It's common for fields in the body section of the form to be blank. In these instances, the histogram of the image performed during word_segmentation will equal zero. This makes the program crash because it returns a value of NaN.

 **Possible Solutions**

• Figure out a way to catch those instances where the histogram equals zero and discard them.