image processing - DICOM Deflated Explicit VR Little Endian (1.2.840.10008.1.2.1.99) -

how data in transfer syntax organized? description standard:

this transfer syntax applies encoding of entire dicom data set. entire data set first encoded according rules specified in section a.2. entire byte stream compressed using "deflate" algorithm defined in internet rfc 1951.

initially took mean entire dicom file gzipped. if entire file gzipped, including header contains identifying transfer syntax, how parser/viewer able read transfer syntax know gzipped?

from perspective of viewer given file of type, how can know of transfer syntax? gzip header?

are there publicly available sample images use transfer syntax?

for examples pointed @springfield762, each of _dfl files had valid deflate stream 300-some-odd bytes 8 bytes end. each decompressed length of corresponding file in archive without _dfl suffix, data not same. there additional decoding needed decompressed data original.

image_dfl has deflate stream starts @ offset 334, report_dfl @ 348, , wave_dfl @ 314. decompress 262682, 6178, , 62408 bytes respectively.

the last 8 bytes after each deflate stream same gzip trailer, i.e. crc-32 of decompressed data (four bytes) followed uncompressed length in little endian order. both match data results decompressing deflate stream.

the bytes precede deflate data not gzip header.