We can enhance

   your documents and

     correct common exposure problems

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Document Scan Canada

Canada’s Scanning Centre

Bringing Paper Records to Life.

Making data accessible and secure.

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Image Enhancement
We can further enhance your final images, analyze the scan, correct it and then save it with the optimal settings

Document Scan Canada Image Enhancement

Improve OCR of Document Images

Local Contrast Enhancement


DocuScan Canada will remove digital noise and correct for common exposure problems, correct rotation and geometric distortion, clean background and extract document area to make subsequent OCR job smoother and easier with greater recognition quality and less text recognition errors. DSC Document Imaging will also enhance text legibility of document images and reduce their size. The features include:

  1. 1Automatic, highly accurate document area extraction

  2. 2Geometric distortion correction

  3. 3Automatic image align and rotation

  4. 4Automatic noise reduction

  5. 5Adaptive sharpening and de-blurring of noisy documents and images with background patterns

  6. 6Automatic brightness equalization

  7. 7Automatic boost of brightness and contrast for easier text recognition

  8. 8Adaptive local contrast enhancement in grayscale documents

  9. 9Automatic cleaning of document background

  10. 10Whitening document background

  11. 11Threshold operation for producing strictly black/white documents with character thickness control and spot/line removal

The function makes text and fine detail more legible by automatically increasing local contrast without affecting digital noise or introducing image artefacts. Two parameters are available to fine-tune the performance for different font sizes and background noise levels.

Document Scan Canada, Inc.


Cleaning Document Background


This feature automatically detects and removes distracting background elements such as texture, dots, lines, as well photocopying and scanning artefacts common in documents such as ID cards and passports, bank checks, tickets, and so on.

Cleaning background before processing the document with an OCR program can dramatically increase text recognition quality. As an example, there was an almost 50% increase in text recognition quality in a part of a security suite that was capturing passport information.

Whitening Document Background


Brightness Equalization


Whitening document background is yet another mean to reduce document size and improve text legibility in scanned documents. The function makes the whole document background white while presenting text characters in black, even if inverse fonts (bright text on dark background) or light colors were originally used.

The function can be adjusted for different strength and character sizes. The feature comes handy when faxing or printing complex documents, as it extends cartridge life and leads to significant reduction of transmission time and costs.

Brightness equalization automatically reduces brightness variations throughout the document by making dark (e.g. printed text) and bright (e.g. white paper) areas appear equally lit even in mixed lighting conditions such as shots taken in the library. Brightness equalization can also enhance visual quality of images appearing in the document.

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