In openexif 1.6 with VC++ 6
As ExifImageFile::setJpegDCTMethod only sets
DCTmethod for mOutImage, I can't change DCTmethod
for decompression :
I tried the change below but it doesn't work !
I really don't understand why.
virtual void ExifImageFile::setJpegDCTMethod
// try to set DCT method for decompression