The Paper's Abstract
of The 3rd
International Conference on Imaging Science and Hardcopy
Evaluation of legibility using Line Reproduction and MTF (Invited)
May
26-29,1998
Chongqing China
Soh Hirota and Tetsuya Itoh
Toyokawa
Development Center, Minolta Co. Ltd
2, Higashi-Akatsuchi, Yawayta-Cho
Tel: (+81)533-88-5715, Fax: (+81)533-88-2033
E-Mail: hirota@ieo.minolta.co.jp
The text quality of image output by a copier or printer is very important
in the office environment. Visual examination has previously been used as
a basis for determining the legibility of printed characters. We
concentrated on line reproductivity and MTF, and studied the correlation
between legi-bility evaluated with "Kanji simulator" and each of
them in order to develop an object evaluation method. In line
reproductivity we processed the printed line image as likely as visual
observation at the viewing distance of 200 mm. The MTF of a reproduction
system was measured using a test chart with a various spatial frequency
patterns. As a result, we found that we can predict legibility by better
understanding and use of these two characteristics.
中国复印科学与工程学会
Reprographic Scientists and
Engineers Society of China
7 Chang-Tu Rd.Tianjin300131,China Tel:(22)26669189 Fax: (22)26669189
E-mail: rsesc@public.tpt.tj.cn
.