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Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...
Data in a RAW-file is structured according to the Bayer filter's pattern in cameras that use a single image sensor. Debayering, the process of obtaining bitmap data from a RAW-image is always a lossy operation. [citation needed] In addition, some downsampling is always performed, again reducing image information.
Other programs allow one to automatically convert an image to text characters, which is a special case of vector quantization. A method is to sample the image down to grayscale with less than 8-bit precision, and then assign a character for each value. Such ASCII art generators often allow users to choose the intensity and contrast of the ...
Converts PDF to other file format (text, images, html). Collabora Online: MPLv2.0: Yes Yes ... Can convert files into PDF or convert PDF files into other formats;
Converting a Unix text file to a Microsoft (DOS/Windows) text file involves adding characters, but this does not increase the entropy since it is rule-based; whereas the addition of color information to a grayscale image cannot be reliably done programmatically, as it requires adding new information, so any attempt to add color would require ...
PaperPort is commercial document management software published by Tungsten Automation, used for working with scanned documents.It uses a built-in optical character recognition to create files in searchable Portable Document Format (PDF); text in these files is indexed and can be searched for with appropriate software, such as Microsoft's Windows Search.