Getting text(date) from image that changes everyday

I am trying to get text from image. Text is the date that changes every hour. Sikuli is getting the text what is in image not on the application.

I am comparing the Text(Date) string with the my calculated date. As the Date from the application changes often my scripts are failing.

Here is the logic:

  try {

            //Extract Donor's Status text from the region
            Settings.OcrTextRead = true;
            Settings.OcrTextSearch = true;

            screen.wait(txtImage, 10);
            String extractText = screen.find(txtImage).text();
            extractText = extractText.replaceAll("[a-zA-Z]","/");
           // extractText = extractText.substring(3);
           Date date1 = new SimpleDateFormat(US_DATE_FORMAT_STRING).parse(extractText);
            TestEnvironment.get().getTestLogger().log("Eligibility Date: " + extractText);

            LocalDate today = LocalDate.now();
            LocalDate drawdate = null;

            if (period.toLowerCase().contains("today")){
                drawdate =LocalDate.now();
            } else if (period.toLowerCase().contains("week")){
                drawdate = today.minus(1, ChronoUnit.WEEKS);
            } else if (period.toLowerCase().contains("month")){
                drawdate = today.minus(1, ChronoUnit.MONTHS);
            }else {
                throw new IllegalArgumentException(period);
            }

            LocalDate eligibilityDate = drawdate.plus(days, ChronoUnit.DAYS);
            TestEnvironment.get().getTestLogger().log("Calculated Eligibility Date: " + eligibilityDate);

            TestEnvironment.get().getErrorCollector().checkThat("Eligibility Date:", extractText, is(equalTo(eligibilityDate.format(US_DATE_FORMAT))));

        } catch (FindFailed | ParseException error) {
            TestEnvironment.get().getErrorCollector().addError(error);
        }

extractText changes often in my application, I have to take screenshot when ever it changes and run my scripts. Can you please suggest me any other alternatives to get dynamic text from application instead of the captured image.