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We present an effective image colorization method in which the user only needs to scribble in key areas of a monochrome image with intended colors. Computation complexity is reduced by introducing a simple weight function. Using sub-sampling and interpolation, the colorization process is accelerated without sacrificing the image quality. Cross-object color infiltration is prevented by using edge information...
This paper presents a flexible and effective colorization system that carries out colorization by performing two stages of chrominance determination for pixels in a gray-scale image, including scribble region expansion and chrominance blending. The region corresponding to each scribble color is determined by expanding the scribbles in parallel associated with the edge map of the given image. Usually...
Colorization is a computer-aided process of adding color to a grayscale image or video. The task of colorizing a grayscale image involves assigning three dimensional (RGB) pixel values to an image which varies along only one dimension (luminance or intensity). Since different colors may have the same luminance value but vary in hue or saturation, mapping between intensity and color is not unique,...
Colorization is a user-assisted color manipulation mechanism for changing grayscale images into colored ones. Several colorization algorithms have been constructed, and these methods are able to produce appropriately colorized images given a surprisingly sparse set of hints supplied by the user. But these color images may not in fact look realistic. Moreover, the contrast in the colorized image may...
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