The Collaborative International Dictionary of English v.0.48:

Picture \Pic"ture\, v. t. [imp. & p. p. Pictured; p. pr. & vb.
   n. Picturing.]
   To draw or paint a resemblance of; to delineate; to
   represent; to form or present an ideal likeness of; to bring
   before the mind. "I . . . do picture it in my mind."
   --Spenser.
   [1913 Webster]

         I have not seen him so pictured.         --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

picturing
    n 1: visual imagery [syn: picturing, envisioning]
    2: visual representation as by photography or painting [syn:
       pictorial representation, picturing]

Moby Thesaurus II by Grady Ward, 1.0:

24 Moby Thesaurus words for "picturing":
   Vorstellung, concept, conception, conceptualization, eidetic image,
   envisaging, envisioning, image, imagery, imagery study, imaging,
   imagism, imagistic poetry, lifelike image, mental image,
   mental picture, mental representation, objectification, picture,
   poetic imagery, vision, visual image, visualization,
   word-painting