In this paper, we explore the use of digital photographs in computer-mediated communication. We present Lascaux, an instant messaging client that serves as a research platform for studying visual communication with digital photographs. Through a combined analysis of the uses of images in Lascaux as well as the uses of images in other communicative contexts, we arrived at six themes of appropriation: the image as amplification, the image as narrative, the image as awareness, the image as local expression, the image as invitation, and the image as object/ instrument. For each theme, we explore the ways in which a medium may be designed to support that class of appropriation. Finally, we reflect on the relationship between literacy, mastery, and appropriation. Author Keywords Visual communication, computer-mediated communication, image-mediated communication, instant messaging, networked digital photography ACM Classification Keyword
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