OCR for seven segment display.

Hi, Am trying to read a seven segment display in matlab using ocr. I have the following code,

clc;clear all;close all businessCard = imread('test2.png'); ocrResults = ocr(businessCard, 'CharacterSet','.0123456789'); recognizedText = ocrResults.Text; figure; imshow(businessCard); text(600, 150, recognizedText,'BackgroundColor', [1 1 1]);

The image I am trying to read and convert to text is,

The result is that no text is recognized,

ocrResults =

ocrText with properties:

                      Text: '1

' CharacterBoundingBoxes: [3x4 double] CharacterConfidences: [3x1 single] Words: {'1'} WordBoundingBoxes: [9 5 42 55] WordConfidences: 0.6098

Any suggestions? I want to use OCR to make my code robust.

Thanks.