Reproduction of HDR image on paper medium using Inkjet Printer

Abstract

Display is the main low dynamic range media to represent HDR image. A lot of tone information and detail information can't be perceived when we use the conventional paper medium to reproduce HDR image because of the disadvantages of low dynamic range and small gamut of paper medium. However, Inkjet printing which is taken as the advanced and new method to reproduce the image has several advantages of larger gamut, higher dynamic as opposed to conventional printing. Inkjet printing was used to reproduce HDR image in view of the advantages in this paper. The process and characteristics of HDR image represented on paper medium using inkjet printing technique were studied. The tone properties of HDR image and inkjet printing paper were studied and the correlated curves were plotted to show the properties. We took several HDR images as the original images. Inkjet printing was the main method to present HDR image in this study. We developed two digital workflows using Cannon iPF8410s inkjet printer and HP Z6200 inkjet printer. And the color management was also used to guarantee the reproduction quality of digital printing process. The tone of HDR image was partitioned into three parts according to the human vision perception mechanism. The tone of paper medium was got from the process of digital printing workflow. The tone of paper medium was compared with the several tone partitioned from the HDR image. And the compared results were used to build the correlation between the HDR image tone and paper medium tone. Finally a multilevel tone partition system with correlated gamut methods was developed. The mechanism and method developed would help to solve the problems existing methods. The theory and technique foundation will also be promoted in such thesis.