Seite - 42 - in Document Image Processing

J. Imaging 2018,4, 80 Figure 14. Application of the word-spotting system [25], before (above) and after (below) slantcorrection. 4.Conclusions In this paper, a technique was presented for slant estimation and removal for the entire document page, without requiring line or word segmentation. The proposed technique is recommendedforhistoricaldocument images that includehomogenousslant throughout thepage. Thissegmentation-free techniqueguarantees theminimizationofextranoise thatcouldbe introduced since thesegmentationprocedure, inhistoricaldocument images,where the text isverydense,would leavebehindsmall strokesandotherkindofnoise (points, lines). Experimental resultswere provided for four databases: PrintDB,which contains artificially slantedprintedtext toprovetheaccuracyof the technique;TrigraphSlant,aknownDBofslant text; 42