Man pages matching name tiffwriteencodedstrip in section 3tiff:

TIFFWriteEncodedStrip.3tiff.en	debian 10 / libtiff-dev
TIFFWriteEncodedStrip.3tiff.en	debian 11 / libtiff-dev
TIFFWriteEncodedStrip.3tiff.en	debian 12 / libtiff-dev