2017.10.10 12:05 "Re: [Tiff] Memory management of Image", by Phil Harvey

I need to know how IFD's are arranged in memory.

You can use the ExifTool -htmldump feature to see how the IFD's are organized in an image. Here is an example of this for a JPEG image, showing the TIFF IFD's of the EXIF information:

http://owl.phy.queensu.ca/~phil/exiftool/htmldump.html

- Phil