Accelerating JPEG 2000 Decoding for Digital Pathology and Satellite Images Using the nvJPEG2000 Library

Hi, I can use nVJPEG2000 to decode j2k image (JPEG 2000 - Part1) encoded by Kakadu / OpenJpeg libraries successfully, but fail to decode j2k image (JPEG 2000 - Part1) encoded by Pegasus library of Accusoft with error code NVJPEG2K_STATUS_JPEG_NOT_SUPPORTED. Any suggestions to check which parts are missed or not matched?