New code

i=0
for a in range (1,9):

    for b in range(1,6):


        ball = th1[145*(a-1):145*a, (b-1)*171:171*b]

        cv.imwrite('OpImage{:>40}.png'.format(i),ball)

        im = Image.open("OpImage{:>40}.png".format(i))

        print pytesseract.image_to_string(im)


        #I have to store all the values generated here and print them in the form of matrix