[INFO] Start to read j2k main header (0). [INFO] Main header has been correctly decoded. Image info { x0=0, y0=0 x1=2048, y1=1080 numcomps=3 component 0 { dx=1, dy=1 prec=12 sgnd=0 } component 1 { dx=1, dy=1 prec=12 sgnd=0 } component 2 { dx=1, dy=1 prec=12 sgnd=0 } } Codestream info from main header: { tx0=0, ty0=0 tdx=2048, tdy=1080 tw=1, th=1 default tile { csty=0x1 prg=0x4 numlayers=1 mct=1 comp 0 { csty=0x1 numresolutions=6 cblkw=2^5 cblkh=2^5 cblksty=0 qmfbid=0 preccintsize (w,h)=(7,7) (8,8) (8,8) (8,8) (8,8) (8,8) qntsty=2 numgbits=2 stepsizes (m,e)=(1822,18) (1770,18) (1770,18) (1724,18) (1792,17) (1792,17) (1762,17) (1868,16) (1868,16) (1892,16) (3,14) (3,14) (69,14) (2002,14) (2002,14) (1889,14) roishift=0 } comp 1 { csty=0x1 numresolutions=6 cblkw=2^5 cblkh=2^5 cblksty=0 qmfbid=0 preccintsize (w,h)=(7,7) (8,8) (8,8) (8,8) (8,8) (8,8) qntsty=2 numgbits=2 stepsizes (m,e)=(1822,18) (1770,18) (1770,18) (1724,18) (1792,17) (1792,17) (1762,17) (1868,16) (1868,16) (1892,16) (3,14) (3,14) (69,14) (2002,14) (2002,14) (1889,14) roishift=0 } comp 2 { csty=0x1 numresolutions=6 cblkw=2^5 cblkh=2^5 cblksty=0 qmfbid=0 preccintsize (w,h)=(7,7) (8,8) (8,8) (8,8) (8,8) (8,8) qntsty=2 numgbits=2 stepsizes (m,e)=(1822,18) (1770,18) (1770,18) (1724,18) (1792,17) (1792,17) (1762,17) (1868,16) (1868,16) (1892,16) (3,14) (3,14) (69,14) (2002,14) (2002,14) (1889,14) roishift=0 } } } Codestream index from main header: { Main header start position=0 Main header end position=245 Marker list: { type=0xff4f, pos=0, len=2 type=0xff51, pos=2, len=49 type=0xff52, pos=51, len=20 type=0xff5c, pos=71, len=37 type=0xff64, pos=108, len=19 type=0xff64, pos=127, len=94 type=0xff55, pos=221, len=24 } }