IEEE Trans Image Process - Performance evaluation methodology for historical document image binarization.

Tópicos

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Resumo

Document image binarization is of great importance in the document image analysis and recognition pipeline since it affects further stages of the recognition process. The evaluation of a binarization method aids in studying its algorithmic behavior, as well as verifying its effectiveness, by providing qualitative and quantitative indication of its performance. This paper addresses a pixel-based binarization evaluation methodology for historical handwritten/machine-printed document images. In the proposed evaluation scheme, the recall and precision evaluation measures are properly modified using a weighting scheme that diminishes any potential evaluation bias. Additional performance metrics of the proposed evaluation scheme consist of the percentage rates of broken and missed text, false alarms, background noise, character enlargement, and merging. Several experiments conducted in comparison with other pixel-based evaluation measures demonstrate the validity of the proposed evaluation scheme.

Resumo Limpo

document imag binar great import document imag analysi recognit pipelin sinc affect stage recognit process evalu binar method aid studi algorithm behavior well verifi effect provid qualit quantit indic perform paper address pixelbas binar evalu methodolog histor handwrittenmachineprint document imag propos evalu scheme recal precis evalu measur proper modifi use weight scheme diminish potenti evalu bias addit perform metric propos evalu scheme consist percentag rate broken miss text fals alarm background nois charact enlarg merg sever experi conduct comparison pixelbas evalu measur demonstr valid propos evalu scheme

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