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voice2001

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[求助] 【求助】matlab的exifread和imfinfo函数显示信息差异问题求教

运行matlab的exifread函数，显示信息如下：
      SubjectDistanceRange: 0
               Sharpness: 0
         SceneCaptureType: 0
            WhiteBalance: 0
            ExposureMode: 0
            CustomRendered: 0
               SceneType: 1
               FileSource: 3
            SensingMethod: 2
FocalPlaneResolutionUnit: 3
   FocalPlaneYResolution: 3131
   FocalPlaneXResolution: 3131
         PixelYDimension: 1080
         PixelXDimension: 1920
               ColorSpace: 1
         FlashpixVersion: '0100'
               FocalLength: 4.3000
                     Flash: 9
               LightSource: 0
            MeteringMode: 5
         MaxApertureValue: 3.2600
         ExposureBiasValue: 0.6700
         BrightnessValue: 8.8700
            ApertureValue: 3.2600
         ShutterSpeedValue: 10
   CompressedBitsPerPixel: 2
   ComponentsConfiguration: [1 2 3 0]
         DateTimeDigitized: '2011:11:15 15:49:53'
         DateTimeOriginal: '2011:11:15 15:49:53'
               ExifVersion: '0230'
         ISOSpeedRatings: 64
         ExposureProgram: 4
                  FNumber: 3.1000
            ExposureTime: 1.0000e-003
               Copyright: ' '
         YCbCrPositioning: 2
                  DateTime: '2011:11:15 15:49:53'
                  Software: 'Digital Camera FinePix S4000 Ver1.01'
            ResolutionUnit: 2
               YResolution: 72
               XResolution: 72
               Orientation: 1
                     Model: 'FinePix S4000'
                     Make: 'FUJIFILM'
               Thumbnail: [1x1 struct]

运行matlab的imfinfo函数，显示信息如下：
         Filename: 'D:\DSCF0461.jpg'
      FileModDate: '15-Nov-2011 15:49:56'
         FileSize: 619492
         Format: 'jpg'
   FormatVersion: ''
            Width: 1920
         Height: 1080
         BitDepth: 24
      ColorType: 'truecolor'
FormatSignature: ''
NumberOfSamples: 3
   CodingMethod: 'Huffman'
   CodingProcess: 'Sequential'
         Comment: {}

为何采用两个函数显示的信息不一致？而且采用imfinfo函数显示的信息较少？

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