This question has been answered by narno07. See the first response.
<h3>Image locale relative</h3> Output tv : [[*actuVignette:phpthumbof=`w=200&h=200&zc=1`]] <img src="[[*actuVignette:phpthumbof=`w=200&h=200&zc=1`]]"/>
Direct phpthumbof : [[!phpthumbof? &input=`[[+actuVignette]]` &options=`&w=200&h=200&zc=1`]] <img src="[[!phpthumbof? &input=`[[+actuVignette]]` &options=`&w=200&h=200&zc=1`]]"/>
<h3>Image locale http</h3> Direct phpthumbof : [[!phpthumbof? &input=`http://www.**********.com/assets/images/actualites/1-bar-a-terroir.jpg` &options=`&w=200&h=200&zc=1`]] <img src="[[!phpthumbof? &input=`http://www.**********.com/assets/images/actualites/1-bar-a-terroir.jpg` &options=`&w=200&h=200&zc=1`]]"/>
<h3>Image http web</h3> Direct phpthumbof : [[!phpthumbof? &input=`http://www.nikopik.com/wp-content/uploads/2013/03/google-logo.jpg` &options=`&w=200&h=200&zc=1`]] <img src="[[!phpthumbof? &input=`http://www.nikopik.com/wp-content/uploads/2013/03/google-logo.jpg` &options=`&w=200&h=200&zc=1`]]"/>