Printing apparatus and method particularly suited to provide a hardcopy of an image which is produced by medical imaging equipment or the like. The apparatus produces hardcopy consisting of pixels whose size can be changed by area modulation to suit image tonal content and detail while still maintaining a large number of gray levels per area modulation cell (pixel). Preferably, the same area modulation patterns representing pixel tonal values are used for printing pixels of different sizes.
申请公布号
WO9210057(A3)
申请公布日期
1992.07.09
申请号
WO1991US06892
申请日期
1991.09.23
申请人
POLAROID CORPORATION
发明人
ALLEN, JANET, A.;BYBELL, DANIEL, P.;SCHUH, DANA, F.;THORNTON, JAY, E.