-
公开(公告)号：JP2000032465A
公开(公告)日：2000-01-28
申请号：JP15208299
申请日：1999-05-31
Applicant: ST MICROELECTRONICS INC
Inventor： MANCUSO MASSINO , BORNCO ANTONIO MARIA
Abstract: PROBLEM TO BE SOLVED: To prevent details of an image from being fogged by extracting a global metric from the image, estimating a local metric relating to a target pixel and its adjacent pixels, deciding a difference between gray levels and using a dual-ramp generator so as to smooth the gray level. SOLUTION: An image is stored in a line memory 102 for processing. The line memory 102 generates a processing window, in which the image is processed. The output of the line memory 102 is given to a global metric detector 104. The global metric detector 104 receives the image and uses a derivative for extracting image attributes such as amplitude, position of end points, and texture description for the analysis of the image. For example, a Sobel operator is used to conduct both the differential processing and smoothing. The smoothing compensates noise generated by extracting the derivative of pixels.
Search Results
1
records
(took 0.021 seconds)
