JEITA  CP-3451 - 27 - PixelYDimension Information specific to compressed data. When a compressed file is recorded, the valid height of the meaningful image shall be recorded in this tag, whether or not there is padding data or a restart marker. This tag should not exist in an uncompressed file. For details see section 2.8.1 and Annex F. Since data padding is unnecessary in the vertical  direction,  the  number  of  lines  recorded  in  this  valid  image  height  tag  will  in  fact  be  the  same  as  that recorded in the SOF.   Tag = 40963 (A003.H) Type = SHORT of LONG Count = 1 ComponentsConfiguration   Information  specific  to  compressed  data.  The  channels  of  each  component  are  arranged  in  order  from  the  1st component to the 4th. For uncompressed data the data arrangement is given in the PhotometricInterpretation tag. However, since PhotometricInterpretation can only express the order of Y,Cb and Cr, this tag is provided for cases when compressed data uses components other than Y, Cb, and Cr and to enable support of other sequences. Tag = 37121 (9101.H) Type = UNDEFINED Count = 4 Default = 4 5 6 0 (if RGB uncompressed) 1 2 3 0 (other cases) 0 = does not exist 1 = Y 2 = Cb 3 = Cr 4 = R 5 = G 6 = B Other = reserved CompressedBitsPerPixel   Information specific to compressed data. The compression mode used for a compressed image is indicated in unit bits per pixel.   Tag = 37122 (9102.H) Type = RATIONAL Count = 1 Default = none D.    Tags Relating to User Information   MakerNote A tag for manufacturers of Exif writers to record any desired information. The contents are up to the manufacturer, but this tag should not be used for any other than its intended purpose. Tag = 37500 (927C.H) Type = UNDEFINED Count = Any Default = none