SOO-CHANG PEIChiu, Yi-MeiYi-MeiChiu2006-11-142018-07-062006-11-142018-07-06200610577149http://scholars.lib.ntu.edu.tw/handle/123456789/325334http://ntur.lib.ntu.edu.tw/bitstream/246246/200611150121870/1/228.pdfhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-33749162315&doi=10.1109%2fTIP.2006.877478&partnerID=40&md5=88d6ec7afb277f9f6eff1aaa0d94c902This work presents a color enhancement scheme to virtually restore ancient Chinese paintings in electronic form. Two degradations result in color contrast loss in ancient Chinese paintings: paper aging and pigment fading. The proposed enhancement scheme comprises two subsequent methods: background adjustment and saturation enhancement. The former method, based on the Von Kries color conversion in the CIE xyY color space, retrieves the original color of the paint paper by modifying colors based on their similarity to the background color. The proposed saturation enhancement method makes colors more vivid and bright, and also improves the image contrast. © 2006 IEEE.Background adjustment; Color contrast; Color enhancement; Gamut mapping and saturation enhancement[SDGs]SDG11Color image processing; Image enhancement; Image quality; Photomapping; Background adjustment; Color contrast; Color enhancement; Gamut mapping; Saturation enhancement; Image reconstruction; algorithm; China; color; colorimetry; computer assisted diagnosis; image enhancement; information retrieval; letter; methodology; painting; Algorithms; China; Color; Colorimetry; Image Enhancement; Image Interpretation, Computer-Assisted; Information Storage and Retrieval; Paintingsjournal article10.1109/TIP.2006.87747817022286WOS:000240776200033http://ntur.lib.ntu.edu.tw/bitstream/246246/200611150121870/1/228.pdf