Opting for OCR conversion is one of the best ways of making the work process in your business faster and more efficient. Gone are the days of having to type every time you needed some information from hard copy of a document converted to a digital copy. This kind of conversion is especially helpful if you are planning to convert a large amount of text into softcopy.
You will take fraction of the time needed to type it and also ensure better quality work as the possibility of human errors is reduced considerably. For such conversion, first a scan of the document is done. This scanned image is then run through the OCR software, which then converts it into usable digital copy.
A clear scanned image is of prime importance
OCR conversion is easy – you just have to run the scanned images through the software. But for good results, the scanned image itself has to be legible. If the image scanned is cloudy or faded, the OCR software will not identify most of the characters, and hence the conversion will not be as accurate as you want it to be. This is why it is stressed that the original document you are about to scan should be of good quality. The text on it should be legible and it should ideally not have any marks or smudges that might undermine the quality of the scanned image.
But, even with a good original document, the scan itself may not come out that good. Or maybe the important document to be scanned cannot be restored to top notch form. In such circumstances, you have to go for image enhancement of the scanned images.
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Importance of Clear Images: Best Practices
The core of a good OCR process starts with quality scans. Companies may apply best practices like these:
- Scan with high DPI of at least 300 to create crisp images
- Straighten pages to avoid crooked and skewed output
- Select formats such as TIFF or PNG for clearer, more compatible images
When scanned images follow these practices and are combined with image improvement, OCR results become more accurate and reliable.
Enhanced images equal accurate OCR
The accuracy level of OCR conversion services is usually pretty high. But even there, one has to keep space for minor mistakes. But even there, one has to keep space for minor mistakes. If the scanned image itself is unclear, then the lack of accuracy will increase even more. This is why, more and more work places opting for such conversion make it point to get the scanned images enhanced first.
The task of enhancing is quite simple. The enhancement tools can remove and dots or specks that might be there in the scanned image. It can straighten the documents which have not been aligned properly during the scan. It also affects the brightness of the documents. If the scanned image is too dull or faded, then the enhancement tools can adjust the contrast, thereby making the text more visible. And increased visibility automatically leads to better OCR conversion results. Once the images have been enhanced sufficiently, you can expect better levels of OCR accuracy.
The most important image processing functions help improve OCR accuracy and clean up scanned files.
- Orientation correction turns pages the right way.
- Deskewing straightens crooked pages.
- Noise removal clears specks and unwanted marks.
- Cropping and clipping remove dark edges and extra space.
- Page rotation fixes sideways or upside-down scans.
These functions help create cleaner and more accurate digital documents.
Opt for good image enhancement services
If you do not have the requisite tools for image enhancement for OCR purposes, then opt for professional services that offer it. Alternatively, you can set up the requisite tools in your workplace. The importance of image enhancement before OCR conversion is high – and hence you need to ensure that the scanned images go through it.