271 search results - page 15 / 55 » Contrast enhancement of images using human contrast sensitiv... |
TIP
2002
13 years 7 months ago
2002
Abstract-- We present a perceptual model for hiding a spreadspectrum watermark of variable amplitude and density in an image. The model takes into account the sensitivity and maski...
MICCAI
2008
Springer
14 years 9 months ago
2008
Springer
Nonrigid registration of contrast-enhanced MR images is a difficult problem due to the change in pixel intensity caused by the washin and wash-out of the contrast agent. In this pa...
ICPR
2004
IEEE
14 years 8 months ago
2004
IEEE
We present a fast, effective and flexible tone reproduction method that preserves visibility and contrast impression of high dynamic range scenes in low dynamic range reproduction...
CGF
2008
13 years 7 months ago
2008
This paper presents a quick and simple method for converting complex images and video to perceptually accurate greyscale versions. We use a two-step approach first to globally ass...
ICIP
2008
IEEE
14 years 9 months ago
2008
IEEE
The continual shrinkage of minimum feature size in integrated circuit (IC) fabrication incurs more and more serious distortion in the optical lithography process, generating circu...