Hi,
what MATLAB version are you using? Normally the returned structure of iminfo should have a field called DigitalCamera which contains the EXIF information.
In R2014a I get something like this:
>> info = imfinfo('img_1771.jpg')
info =
Filename: 'C:\Users\fhempel\Desktop\tmp\img_1771.jpg'
FileModDate: '07-Aug-2014 12:09:45'
FileSize: 32764
Format: 'jpg'
FormatVersion: ''
Width: 480
Height: 360
BitDepth: 24
ColorType: 'truecolor'
FormatSignature: ''
NumberOfSamples: 3
CodingMethod: 'Huffman'
CodingProcess: 'Sequential'
Comment: {}
Make: 'Canon'
Model: 'Canon PowerShot S40'
Orientation: 1
XResolution: 180
YResolution: 180
ResolutionUnit: 'Inch'
DateTime: '2003:12:14 12:01:44'
YCbCrPositioning: 'Centered'
DigitalCamera: [1x1 struct]
ExifThumbnail: [1x1 struct]
>> info.DigitalCamera
ans =
ExposureTime: 0.0020
FNumber: 4.9000
ExifVersion: [48 50 50 48]
DateTimeOriginal: '2003:12:14 12:01:44'
DateTimeDigitized: '2003:12:14 12:01:44'
ComponentsConfiguration: 'YCbCr'
CompressedBitsPerPixel: 5
ShutterSpeedValue: 8.9688
ApertureValue: 4.6563
ExposureBiasValue: 0
MaxApertureValue: 2.9709
MeteringMode: 'CenterWeightedAverage'
Flash: 'Flash did not fire, no strobe return detection function, auto flash mode, f...'
FocalLength: 21.3125
MakerNote: [1x450 double]
UserComment: [1x264 double]
FlashpixVersion: [48 49 48 48]
ColorSpace: 'sRGB'
CPixelXDimension: 2272
CPixelYDimension: 1704
InteroperabilityIFD: [1x1 struct]
FocalPlaneXResolution: 8.1143e+03
FocalPlaneYResolution: 8.1143e+03
FocalPlaneResolutionUnit: 2
SensingMethod: 'One-chip color area sensor'
FileSource: 'DSC'
CustomRendered: 'Normal process'
ExposureMode: 'Auto exposure'
WhiteBalance: 'Auto white balance'
DigitalZoomRatio: 1
SceneCaptureType: 'Standard'
