How to extract data from payslip using OCR?

Payslips are a traditional form of additional documentation used among lenders to assess your trustworthiness. If you’re a current or former worker, you’ve almost certainly encountered one. Typically, most payslips include information such as an individual’s income for a given period of timeframe, as well as other areas such as itemized deductions, health coverage sums, social security numbers, and so on. These can be in print or digital format, and they’re occasionally emailed or faxed.

To offer loans, lenders receive scan to editable documents, electronic copies of these payslips and physically update the details into the databases. This procedure takes a long time, particularly during peak times, resulting in a considerable wait between mortgage application and money availability.

In this blog, we will provide a detailed understanding of what a payslip means, how to extract data from a payslip using OCR, what an OCR means and many more.

What does a payslip mean?

A payslip is also characterized as a revenue slip or pay-check. It is documentation handed to a worker by their company once their income has been paid. Data from the payslip contains information about a person’s compensation, such as adjustments and gross income. It also serves as confirmation that a worker was paid the salary for the month. Employees can utilise pay stubs to prove their earnings when they need to fill out paperwork. Payslips are typically examined when asking for any form of debt, and the financing is determined.

The following categories of information can be found on a pay stub:

  • The basic salary
  • Contributions, taxes and deductions
  • Net pay

What does OCR mean?

OCR stands for Optical Character Recognition. It’s the process of using technologies to differentiate between printed or handwritten textual content from photographic files of physical records, including such digitized paper records. OCR is a technology that examines a statement’s content and converts the letters into information that may be utilised for information extraction. Recognition system is a term that is often used to describe OCR.

OCR system comprises a hardware/software mixture that converts documentation into computer text. Content is copied or converted to scanned pdf to editable word using equipment such as an optical device or dedicated connecting wires, while additional analysis is usually handled by programs. Machine intelligence can also be used in programming to accomplish more sophisticated processes of intellectual character segmentation, such as recognizing nationalities or handwritten patterns.

How does it work?

The structure of a material is processed using document digitization during the initial step of OCR. OCR software turns the material into 2 different black and white, representations when all sheets have been duplicated. The different coloured regions of the digital image picture or graphic are characterized as symbols that need to be recognised, while the luminous sections are designated as backgrounds.

OCR applications use a range of methodologies, but most focus on one symbol, phrase, or group of characters at a single period. After that, one of two techniques is used to identify the characters, they are as follows:

  • Detecting features: To recognise elements in a scan to editable document, OCR applications use algorithms based on the characteristics of a given sequence of letters. For example, the proportion of slanted characters, crossing routes, or bends in a text could be used as a comparative characteristic.
  • Recognize patterns: Samples of content in different fonts and styles are supplied into OCR systems, which are then used to analyse and recognise elements to convert scanned pdf to editable word.

When a pixel is recognised, it is transformed into a binary format that modern computers can utilise to perform additional operations. When downloading a manuscript for prospective use, administrators should rectify basic errors, analyse them, and double-check those complicated designs were successfully carrying.


How to extract data from payslip using OCR?

If you’re unfamiliar with OCR, check the article above to get a detailed understanding. Also, to give a brief explanation, it’s a computerized technology that converts photographs of recorded or written text into documents. There are a variety of freely available tools available on GitHub, such as Kraken, Tesseract and Ocropus but each has its own set of constraints. Regardless of the difficulties mentioned previously, a perfect OCR should really be capable of pulling all of the necessary information.

The typical data that we need to retrieve from a Payslip document before establishing an OCR, are as follows:

  • Date of issue
  • Date of birth
  • Name of the employee
  • Name of the employer
  • Address of the employee
  • Address of the employer
  • The contact number of the employee
  • The contact number of the employer
  • Bank account
  • Time of the salary
  • Net salary
  • Gross salary
  • Hours worked
  • Days worked
  • Service date
  • Hourly rate
  • Tax rate

Always remember, OCR has no idea exactly what type of materials one is providing to it to extract; it just recognises the content and returns it, regardless of the attributes or characteristics indicated previously.

Difficulties while extracting data from payslip using OCR

Involves checking for Fabrication and Pixilated Images:

Workers and employers must verify whether pay stubs are genuine. The Variation of Descriptor is a well-known technique for completing this assignment. It enables us to locate and investigate the prevalence of multiple wavelengths in a specific picture. These are among the characteristics that can help us determine whether or not an image is genuine, they are as follows:

  • Look for any text that has been distorted or changed.
  • Determine twisted or deformed pieces’ backdrops.
  • Stay wary of photographs that are of poor quality.

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