公开(公告)号：US12229933B2

公开(公告)日：2025-02-18

申请号：US17539964

申请日：2021-12-01

Applicant: Seagate Technology LLC

Inventor： Sha Zhu ,  Maissarath Nassirou ,  Cindy Ng ,  Caiyan Lu

IPC: G06T7/00 ,  G06T5/77 ,  G06T7/11

Abstract: Methods for analysis of the magnetic grain using a software program effectively and accurately by improving the magnetic grain boundary contrast from an image prior to analyzing the grain size with an imaging analysis program. A method for automated grain size analysis includes obtaining a SEM electronic image of a magnetic material composed of a plurality of grains and modifying the image by smoothing the image, removing high spatial and low spatial frequencies from the image, improving contrast of the image, pixelating the image, processing the image to a binary image, and clearing outer edges of the binary image to remove at least incomplete grains to generate grain size data from the image.