TY - JOUR
T1 - Gray level requantization
AU - Werman, Michael
AU - Peleg, Shmuel
PY - 1988/7
Y1 - 1988/7
N2 - A distance measure between pictures, that enables comparison of images with different gray level ranges, is described. With such measure halftoning can be treated as an optimization problem. Based on this measure, an algorithm for reducing the number of gray levels of a picture with minimal visual degradation is developed. The algorithm can even produce a binary halftone of the picture, which is needed for many hard copy devices. The complexity of the algorithm is high, and it is not recommended as a daily halftoning method. However, the method provides a well-defined mathematical approach for comparing images.
AB - A distance measure between pictures, that enables comparison of images with different gray level ranges, is described. With such measure halftoning can be treated as an optimization problem. Based on this measure, an algorithm for reducing the number of gray levels of a picture with minimal visual degradation is developed. The algorithm can even produce a binary halftone of the picture, which is needed for many hard copy devices. The complexity of the algorithm is high, and it is not recommended as a daily halftoning method. However, the method provides a well-defined mathematical approach for comparing images.
UR - http://www.scopus.com/inward/record.url?scp=0023823135&partnerID=8YFLogxK
U2 - 10.1016/0734-189X(88)90044-8
DO - 10.1016/0734-189X(88)90044-8
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AN - SCOPUS:0023823135
SN - 0734-189X
VL - 43
SP - 81
EP - 87
JO - Computer Vision, Graphics, and Image Processing
JF - Computer Vision, Graphics, and Image Processing
IS - 1
ER -