Title :
A novel hybrid approach to restore historical degraded documents
Author :
Quraishi, Md Iqbal ; De, M. ; Dhal, K.G. ; Mondal, Sudipta ; Das, Goutam
Author_Institution :
Dept. of Inf. Technol., Kalyani Gov., Kalyani, India
Abstract :
Old degraded historical documents carry various important information regarding our culture, economics etc. proper restoration of these documents is very necessary. After digitization of these documents there remain noises and other low resolution components. These affect the overall visual appearance of the documents. In this paper a novel approach is proposed to enhance ancient historical documents. To enhance these digital format documents a two way approach is considered. At first Particle Swarm Optimization (PSO) and bilateral filter is applied. At second level Non-Linear Enhancement with bilateral filter is applied. Both the approaches are then tested visually and quantitively to show the effectiveness of the approach.
Keywords :
document image processing; history; optical character recognition; PSO; ancient historical documents; bilateral filter; culture; digital format documents; document digitization; economics; historical degraded document restoration; nonlinear enhancement; particle swarm optimization; Handwriting recognition; Maximum likelihood detection; Nonlinear filters; Optical character recognition software; Optical filters; Signal processing algorithms; NAE; PSNR; bilateral filter; historical document; image enhancement; low resolution; noise; nonlinear enhancement; particle swarm optimization;
Conference_Titel :
Intelligent Systems and Signal Processing (ISSP), 2013 International Conference on
Conference_Location :
Gujarat
Print_ISBN :
978-1-4799-0316-0
DOI :
10.1109/ISSP.2013.6526899
