Low resolution scanned text dataset for optical character recognition

A collection of scanned pages of English text designed for testing low resolution OCR systems. There are 11 different pieces of text, each of which contains 5 pages of text. Each of these 55 pages is typeset in 18 different fonts and then scanned at 300 dpi, producing a total of 990 pages of scanned text. Downsampled 60 dpi and 75 dpi versions are included.本数据集为面向低分辨率光学字符识别（OCR, Optical Character Recognition）系统测试打造的英文文本扫描页合集。数据集包含11组独立文本，每组文本均包含5个页面，总计55个原始文本页面。这55个原始文本页面均采用18种不同字体进行排版，随后以300点每英寸（dpi, dots per inch）的分辨率完成扫描，最终生成共计990页扫描文本。数据集同时提供降采样至60dpi与75dpi的版本。