The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 1988
Filed:
Feb. 11, 1987
Ikuo Matsuba, Sagamihara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An image data processing method for restoring an image worsened by non-linear characteristics of a transforming system, noises and others is disclosed, by which a quantity called energy function, in which the noises and others described above are taken into consideration, is defined, and treatments for modifying stochastically the value of the gray level of each of the pixels are repeated so that a probability determined by this energy function is made greatest and the function E({x.sub.i,j }) represented by the following equation is adopted for the energy function stated above; ##EQU1## where x.sub.k,l is the value of the gray level of the group of pixels directly adjacent to the sides of the object pixel x.sub.i,j ; y.sub.i,j is the value of the gray level at that time of the object pixel; f(x.sub.i,j) is the value corresponding to the true gray level of the object pixel obtained through the transformation system for transforming image signals into a first image data; and .alpha. is a coefficient.