Feature Request: JPEG SOI Offset in Bytes

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Image-ExifTool

Posted on 2009-01-28 14:02:35-08 by metadatacrucher

I want to find out at which byte offset the JPEG image data starts (SOI marker).
I need this to generate a checksum that only changes when the image data itself has been changed, not just its metadata.
Do you think you can implement this as a computed JPEG Tag?

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