Tinting Component Extraction from Gray-scale Image for Color Estimation
نویسندگان
چکیده
The authors havc bccn st.udying color cstimation of gray-scale imagc. The prohlcm of this study is defined as an ill-posed problem. bccausc a luminancc to arhitrary color is uniquely fixed but the Illminancr c.orrcsponds t.o plural color-values. In this papcr. tintingcomponcnt (m whit.c mixed valuc) cst,imat ion mct hod from gray-scale imcgc is proposcd based on st.atist ics. This mcthod acquires tainting valuc t,hat corresponds t,o input luminancc by using t,cndcncy of one color v c ~ t o r ' s pair of luminancc and t,int.ing valuc. In this nict.hod, a few of samplc imagc could bc estimate rcscnil~lancc under the situat,ion t,hat, appearance probability of any color valuc is equal. Thcn, this mrthod is cxpc.c.t.c,d t,hc cstimation with higher prccision hy making suita l ~ l c adjust,mcnt bascd on the charactcristics of input imagc.
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