Highlight image filter significantly improves optical character recognition on text images
Iulia Stirb Computer and Software Engineering Department, “Politehnica” University of Timisoara, Timisoara, Romania
Abstract
Image filtering is changing the appearance of an image by altering the colors of the pixels. Increasing the contrast as well as adding a variety of special effects to images are some of the results of applying filters. In order to obtain a high success rate of OCR (optical character recognition) performed on text images, the main target of filters is, however, to reduce the noise around characters in the image. Thereby, ...
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