TIFF Tag EnhanceParams
|Code||51182 (hex 0xC7EE)|
Used in Enhanced IFD of DNG files.
A string the documents that documents how the enhanced image data was processed. This string is required to be non-null and should begin with the company name that wrote the enhancement algorithms. The remainder of the string is proprietary to that company.
While the DNG specification does not implicitly state that UTF-8 encoded strings are allowed this tag, it does consistently say so for any other DNG tag that may need it, and this tag certainly seems to need it. Our recommendation is that readers allow UTF-8. This is different from normal ASCII TIFF tags, in that it's not necessarily limited to ASCII. The Count should be the number of bytes in this string, including the null terminator byte, not the character count.