| | |
Summary: To appear in the ACM SIGGRAPH conference proceedings
Image Warps for Artistic Perspective Manipulation
Robert Carroll
University of California, Berkeley
Aseem Agarwala
Adobe Systems, Inc.
Maneesh Agrawala
University of California, Berkeley
Input Result: Sharply converging lines Result: Weakly converging lines
Figure 1: We present a tool for controlling the perspective in photographs by manipulating vanishing points and lines. We can constrain the
lines to converge sharply as in a wide-angle image or more weakly as in a telephoto image (Figure 2). Our perception of the room changes
for each result; the former result feels more tightly enclosed and the later feels more spacious.
Abstract
Painters and illustrators commonly sketch vanishing points and
lines to guide the construction of perspective images. We present
a tool that gives users the ability to manipulate perspective in pho-
tographs using image space controls similar to those used by artists.
Our approach computes a 2D warp guided by constraints based on
projective geometry. A user annotates an image by marking a num-
ber of image space constraints including planar regions of the scene,
|
