Title :
Set theoretic inverse halftoning
Author_Institution :
Dept. of EEE, Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong
Abstract :
We give a general method to recover a continuous-tone image from a halftone image in the situation where the halftoning algorithm is known. Using rigorous mathematical tools, the method combines what we call the visual information and the coding information of the halftone data. Although we concentrate on halftoning by error diffusion, the method is applicable to all digital halftoning techniques
Keywords :
FIR filters; image coding; image reconstruction; inverse problems; set theory; two-dimensional digital filters; coding information; continuous-tone image; digital halftoning algorithm; error diffusion; halftone image; set theoretic inverse halftoning; visual information; Convergence; Digital images; Finite impulse response filter; Image coding; Image converters; Kernel; Linearity; Rendering (computer graphics);
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.648079
