1405 search results - page 51 / 281 » Perceptual Image Distortion |
ICIP
2007
IEEE
16 years 1 months ago
2007
IEEE
Scaling attacks are well-known to be some of the most harmful strategies against quantization-based watermarking methods, as they can completely ruin the performance of the waterm...
ICIP
2004
IEEE
16 years 1 months ago
2004
IEEE
DCT-based CODECs such as MPEG-4 Visual and H.263 "skip" many macroblocks during encoding of typical video sequences (i.e. no coded data is transmitted for these macroblo...
ICDAR
2003
IEEE
15 years 5 months ago
2003
IEEE
This paper addresses the problem of to what extent linear transformation can alleviate nonlinear distortion. We investigate a technique of global affine transformation (GAT) corre...
ICPR
2004
IEEE
16 years 29 days ago
2004
IEEE
This paper describes an algorithm that efficiently groups line segments into perceptually salient contours in complex images. A measure of affinity between pairs of lines is used ...
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TIP
1998
14 years 11 months ago
1998
—In this work, we present a segmentation algorithm for color images that uses the watershed algorithm to segment either the twodimensional (2-D) or the three-dimensional (3-D) co...