JEITA  CP-3451 - 57 - B.    Thumbnail (1st IFD) Support Levels The support levels of thumbnail (1st IFD) tags are shown in Table 18.   Table 18    Tag Support Levels (5)    - 1st IFD TIFF Tag – Tag ID Uncompressed Tag Name Field Name Dec Hex Chunky  Planar  YCC Comp- ressed Image width ImageWidth 256 100 M M M J Image height ImageLength 257 101 M M M J Number of bits per component BitsPerSample 258 102 M M M J Compression scheme Compression 259 103 M M M M Pixel composition PhotometricInterpretation 262 106 M M M J Image title ImageDescription 270 10E O O O O Manufacturer of image input equipment Make 271 10F O O O O Model of image input equipment Model 272 110 O O O O Image data location StripOffsets 273 111 M M M N Orientation of image Orientation 274 112 O O O O Number of components SamplesPerPixel 277 115 M M M J Number of rows per strip RowsPerStrip 278 116 M M M N Bytes per compressed strip StripByteCounts 279 117 M M M N Image resolution in width direction      XResolution 282 11A M M M M Image resolution in height direction    YResolution 283 11B M M M M Image data arrangement PlanarConfiguration 284 11C O M O J Unit of X and Y resolution ResolutionUnit 296 128 M M M M Transfer function TransferFunction 301 12D O O O O Software used Software 305 131 O O O O File change date and time DateTime 306 132 O O O O Person who created the image Artist 315 13B O O O O White point chromaticity WhitePoint 318 13E O O O O Chromaticities of primaries PrimaryChromaticities 319 13F O O O O Offset to JPEG SOI JPEGInterchangeFormat 513 201 N N N M Bytes of JPEG data JPEGInterchangeFormatLength 514 202 N N N M Color space transformation matrix coefficients YCbCrCoefficients 529 211 N N O O Subsampling ratio of Y to C YCbCrSubSampling 530 212 N N M J Y and C positioning YCbCrPositioning 531 213 N N O O Pair of black and white reference values ReferenceBlackWhite 532 214 O O O O Copyright holder Copyright 33432 8298 O O O O Exif tag Exif IFD Pointer 34665 8769 O O O O GPS tag GPSInfo IFD Pointer 34853 8825 O O O O Notation M : Mandatory (must be recorded) R : Recommended   O : Optional   N : Not recorded J : Included in JPEG marker and so not recorded