Title :
Former books digital processing: image warping
Author :
Doncescu, Andrei ; Bouju, Alain ; Quillet, Veronique
Author_Institution :
Univ. de La Rochelle, France
Abstract :
In the present paper we will discuss the way to correct the text image warping due to old bookbindings which can not open to 180°. Two methods have been experimented to measure the surface distortion of the paper The first method uses a diffracted laser beam and is operational for 1D distortion measurements. As former bookbindings may also present 2D distortion, we have developed a second method which uses a light projected network and which gives encouraging results
Keywords :
document image processing; image scanners; 1D distortion; 2D distortion; bookbindings; image warping; old bookbindings; surface distortion; text image warping; Books; Degradation; Diffraction; Digital cameras; Distortion measurement; Laser beams; Laser modes; Laser noise; Optical distortion; Surface emitting lasers;
Conference_Titel :
Document Image Analysis, 1997. (DIA '97) Proceedings., Workshop on
Conference_Location :
San Juan
Print_ISBN :
0-8186-8055-5
DOI :
10.1109/DIA.1997.627085
