Mentioned in ?
References in periodicals archive ?
To date, the numerous approaches [3-8] have been proposed for image inpainting since the seminal work of BSCB [3,4]: for example, the classical Total Variation (TV) [7] and Curvature-Driven Diffusion (CDD) [8] models, which are based on solving Partial Differential Equation (PDE) to preserve the directions of the isophotes in the missing region.
The inpainting smoothly propagates the image information along the level lines directions (isophotes) from outside to inside the hole.
In the steady state, when [partial derivative]u/[partial derivative]t = 0, the direction of the largest information change is perpendicular to the isophotes. Figure 10 shows an example of information propagation in an inpainting domain.
Therefore, motivated by the works in [10, 19], a weaker compromise is imposed by demanding that both terms approach zero, but at different rates, with diffusion along the direction normal to the isophote lines approaching zero faster than the diffusion along the tangent to isophote lines.
Considering the occluded area [OMEGA] and the contour of the region [partial derivative][OMEGA], the purpose of the method is to propagate the information along isophote lines that crosses the contour [partial derivative][OMEGA] [4].
Finally, isophotes (lines of equal brightness) were created to show the terminator's curvature more clearly.
Using CCDs to map the isophotes of these galaxies has revealed some interesting structures.
Morse and Schwartzwald [22] considered smoothing the isophotes of the HR ima ge to reduce the undesirable artifacts.
Using IRAF's STSDAS package, we first extracted luminosity profiles and isophotes from the panchromatic image obtained by combining all slices from the spectral cube (see Figure 12(a)).
The isophotes, or contours of equal brightness, are approximately circular around the center and the variation of brightness outward is close to that of an inverse square law.
The software will stack and average images, center them with respect to each other, mosaic them to create wide-field scenes, display a histogram of pixel intensities, display isophotes, blink two images to compare differences, and perform photometry on starlike objects.
He presented a challenging crop of discordant redshift oddities using false-color, visible-light images overprinted with X-ray isophotes. These dazzling images hint at physical links between distant quasars and closer active galaxies - a controversial astrophysical issue.