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Optical Character Recognition During your foray into the world of document scanning, you've probably come across the term ' OCR'. You may even know that it stands for ' Optical Character Recognition'. But what is OCR, really, and what do you need to know about it to make the best use of this sophisticated and valuable tool?
We're here to give you a run-down on Optical Character Recognition, answer any questions you might have, and recommend the best OCR software for your scanning project. The primary purpose of Optical Character Recognition is to quickly and automatically convert scanned images of machine-printed (typed) text - which to a computer are no more meaningful a collection of pixels than any other image, such as a landscape photo - into actual text data that you can search through and modify. The exact mechanics of this process are complicated, but suffice to say that an OCR engine will look at pixel data and search for patterns resembling letters, numbers, and other symbols and create a digitized record of these symbols. Types of OCR There are two major types of Optical Character Recognition. Full Page OCR - Converts the entire page into one of the below mentioned formats:. Plain Text - Only basic text information on the page is retained in a consecutive order.
Formatted Text - Text information is retained in consecutive paragraphs, saving font size and style. This can also conserve tables in a tabular format, such as spreadsheets. Exact Copy - All information on the page is retained, including graphics, and placed on the page in such as way as to most closely recreate the original document. Searchable File - Text information is retained on a hidden layer behind the scanned, image, allowing the file to be searched while retaining the appearance of the original. Zone OCR - Recognizes strings of text located on particular areas of the page. This is usually for the purpose of indexing and document management. The information can be used to name a file, save it to a particular location, or archive particular pieces of data into an organized format, such as a database.
Levels of OCR Software OCR Software comes in, which vary in price range based on their features, speed, and accuracy. For instance, you can get a freeware such as that will serve in a pinch, but it will only be able to convert BMP, JPG, and TIF images of English or French text into plain text documents of TXT or DOC format, one page at a time. On the other hand, you can invest a few hundred dollars in a or even software that will be able to watch particular folders for incoming documents in a variety of image formats and languages, then automatically recreate exact copies of all of the pages therein in a format of choice. You can also find software, which will bridge the price gap and include many of the features of the Corporate editions but still require some user input during conversion. Improving Accuracy Although some OCR engines are better than others, no software can guarantee 100% accuracy. This is because there are other factors in play, including scan quality. Recognition software will not be able to do its work if the scanner is not properly digitizing the page.
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It is recommended to scan at a resolution of 300dpi for best results. Black & White (Bitonal) is preferred over Greyscale or Color modes, and although most modern scanners are fairly well configured out of the box, you may want to adjust your Brightness and Contrast settings for your particular documents. If you do not have a scanner that has the necessary speed, quality, or other features that you require to scan your documents, you can always find a! ScanStore even has a handy to help you find the perfect scanner for your specific requirements and price range. Limitations of OCR OCR software is also limited in what it is able to recognize. Most OCR software are only designed to recognize machine printed text, as opposed to handwriting. While there are that can recognize handwritten information, they tend to be enterprise level solutions for forms processing work, rather than full page recognition.
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Similarly, most OCR software are only able to convert traditional machine fonts, not cursive scripts or calligraphy. There are many fonts out there, and OCR engines depend on common, separated letter shapes to recognize the text, so fonts that are unusual or flow together will not be recognized. The main features that differentiate OCR software are:. Character recognition accuracy. Page layout reconstruction accuracy.
Support for languages. User interface design. Output file formats (Word, Excel, PDF, eBook, etc.). OCR speed and support for multi-core CPUs. Batch processing modes. Advanced PDF encryption or compression.
Special features for niche projects Because of the infinite combinations of document types, OCR engines, project requirements and special features, it may be possible that one engine will perform better with your particular documents than another. Use our handy to determine which OCR program best meets your requirements. Provides demo downloads for most with your if you prefer to try before you buy. OCR Software Categories The is divided into the following categories:. And The Winner Is.
The OCR experts at have tested the latest versions of, and and we consider the best overall value for business users, while is the best OCR software for under $150. The key deciding factors were:.
User interface design. Page layout reconstruction capabilities. Extensive language support.
Engine stability when processing large files. Availability and quality of technical support Though other testing labs have ranked OmniPage's overall accuracy slightly higher, we find the difference is nearly negligible. All modern OCR software has very good accuracy, so we recommend going with the one that has particular special features like 's CardIRIS, 's camera OCR and screenshot reader, or 's form data collection, auto-redaction and barcode filing capabilities. If you would like to try them out yourself, ScanStore offers free demo downloads for and. Nuance does not provide demos for its OCR products.
Businesses with many documents to process should use our with the FineReader OCR engine to scan and large batches of documents. And can also be used to sort and file documents into folders, databases. SimpleIndex combines with powerful pattern matching features to extract useful data from OCR text and use it to file documents automatically. Perfect for small to mid-sized businesses that need to digitize many documents at once. Also supports other labor-saving technologies like, and. OCR results can be saved to text, MS Word or searchable PDF and PDF/A files.
Data can be saved to CSV (Excel), embedded in folders and filenames or used as file. Affordable desktop and server licensing with no pay-per-click makes SimpleIndex the most cost effective software of its kind!
This program converts paper documents, read-only PDFs and image files into editable text at up to 1600 characters per second. You can scan your document with your scanner, recognize it with Readiris Pro 8.0 and automatically send it to your favorite application. It keeps the original format, reproducing your documents in applications including MS Word, MS Excel, Adobe Acrobat and Internet Explorer.
The program also comes with extended PDF conversion that will enable you to archive and share all your documents as well as retrieve, search and re-use information. Notes Tucows, Inc has graciously donated a copy of this software to the Internet Archive's Tucows Software Archive for long term preservation and access. Please check the for all current versions of the software.
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