TY - JOUR
AU - Dallas, William
AB - A method is presented for matching apparent sharpness between digital image display devices with different characteristics. The sharpness is most precisely described by the point spread function (PSF) as opposed to dot density such as DPI (dot per inch). The difference between devices is expressed as difference between transfer functions obtained from the PSFs. In the presented method, spatial frequency filtering for one digital image is carried out where the ratio of the transfer functions or its modified version is used as filter. The modification is introduced as a clipping operation to reduce excessive enhancement when the ratio of the transfer functions has a high pass characteristic with large gain. Through computer simulation including a subjective evaluation experiment and numerical evaluation, the effectiveness of filtering operation for sharpness matching is demonstrated.
TI - Sharpness Matching between Digital Image Display Devices
JF - Optical Review
DO - 10.1007/s10043-998-0163-0
DA - 1998-01-01
UR - https://www.deepdyve.com/lp/springer-journals/sharpness-matching-between-digital-image-display-devices-rdJFm8WzwA
SP - 163
EP - 173
VL - 5
IS - 3
DP - DeepDyve
ER -