Yesterday in class we learn't about Denotation and Connotation. This is what I interpreted from this lesson;-
Denotation- What an image actually shows and what is immediately shown, as opposed to the assumptions that an individual reader may interpret from it. Denotation can also be the first step to the identification and definition of certain elements of an object or text. e.g. red roses.
Connotation- Is the meaning of a sign that is arrived through the cultural experience a reader brings to it. In other words connotation is the meaning behind the picture or text. E.g. when i look at a bouquet of red roses, i think of love and happiness. Whereas other people might think that a bouquet of roses signifies the emotion of courage, or that red roses are given to show respect or to say "congratulations."