gistfile1.py

from nltk.corpus import wordnet as wn
import tesseract
import string

api = tesseract.TessBaseAPI()
api.Init(".","eng",tesseract.OEM_DEFAULT)
api.SetVariable("tessedit_char_whitelist", string.ascii_uppercase)
mBuffer = open('source.jpg','rb').read()
result = tesseract.ProcessPagesBuffer(mBuffer,len(mBuffer),api)
print result

def iter_result(_min, _max, result):
    for length in range(_min, _max+1):
        for y in range(len(result)):
            for x in range(len(result[0])):
                h = result[y][x:x+length]
                if len(h) == length:
                    yield ((y,x),(y,x+length),''.join(h))

                v = [row[x] for row in result[y:y+length]]
                if len(v) == length:
                    yield ((y,x),(y+length,x),''.join(v))

                d = [row[x:x+length] for row in result[y:y+length]]
                if len(d) != length or len(d[-1]) != length:
                    continue
                d = [d[i][i] for i in range(length)]
                yield ((y,x),(y+length,x+length),''.join(d))

result = [x.split() for x in result.strip().splitlines()]
for s,e,w in iter_result(3, 17, result):
    lemmas = wn.lemmas(w.lower())
    if len(lemmas) != 0 and sum([x.count() for x in lemmas]) >= 1:
        print w, s, e