Border Detection of Document Images Border Detection of Document Images

Document images usually suffer from someunwanted transformations like skew and warping. When dealingwith large books, another problem is also introduced; when wecapture a page of a large book using digital camera or scanner,some extra margins appears. The resulting document is oftenframed by a dark border and noisy text regions from neighboringpage. In this paper, we introduce a novel technique for enhancingthe document images by automatically detecting the documentborders and cutting out noisy area. Our methodology is based onprojecting profiles combined with an edge detection process.Experimental results on several document images, mainlyhistorical with a small slope, indicate the effectiveness of theproposed technique.

کلیدواژه ها:

Border Detection ، Edge Detection ، OCR Preprocessing ، Projection Profile