in reply to Re: IPTC data
in thread IPTC data

It is undoubtedly an encoding but it is really does not look like UTF-8 ä is 0xC3 0xA4 in UTF-8 and I cant see an obvious way to get 0x7E and 0x0A from that. Here is an encoding table for chars 128-255 in a number of different encodings.

One way to determine the UTF-8 value (if not using bitmask/bitshift) is: 

#If ud >=128 and <=2047 (7FF hex) then UTF-8 is 2 bytes long.
$ud = ord('ä');
$byte1 = 192 + int($ud /64);
$byte2 = 128 + ($ud % 64);
printf "0x%02X 0x%02X\n",$byte1, $byte2;

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cheers

tachyon

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