Error using HDRREAD: Not a Radiance File

2015 5 21
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更新时间：2019 8 6
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Hi, I have been sent PET-CT scanner data in interfile format. I have the *.hdr file and corresponding *.img file. I am trying to use hdrread to read the data into MatLab. I get the error message:
Error using hdrread>readHeader (line 61) Not a Radiance file.
Error in hdrread (line 29) fileinfo = readHeader(fid);
I get this error on 2 different sets of data from 2 different scanners. Any help would be appreciated.

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Manpreet Kaur
Manpreet Kaur 2019-8-6
I m processing .hdr file. I'm enable to read hdr format file.
Error Through
Error using hdrread>readHeader (line 63)
Not a Radiance file.
Error in hdrread (line 29)
fileinfo = readHeader(fid);
Please suggest me how to read 'D2_F22_H2_Cropped_NW_Aligned.hdr' file.

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Jan
Jan 2015-5-21

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Take a look into the hdrread file in line 61. There you should find the criterion which let Matlab reject your file type. Perhaps there are different file formats called ".hdr"?

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Robert
Robert 2015-5-22
Doh! Must have been tired yesterday. The MatLab hdrread is for a different type of file (I think I searched MatLab for *.hdr and it came up with hdrread!). I should be using interfileinfo and interfileread. Unfortunately I now have another error message which I'll post separately. Thanks.

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