Patent ID: 9142054
Filing Date: 2015-09-22
Classification: A45D,G06K,G06T

Abstract:
1. A computer-implemented method for digital hair coloring comprising: obtaining a starting image I of a subject including a hair region; calculating a matte defining a calculated foreground area of said starting image, wherein said calculated foreground area comprises said hair region, wherein said matte comprises an alpha mask α composed of alpha values corresponding to each pixel of the starting image; obtaining a target color distribution of a target hair color in an ellipsoidal volume of a three-dimensional color space; generating a recolored image T(I) by using nonlinear color transformation to map a starting color distribution of the calculated foreground area of the starting image to the target color distribution; and generating an output image O from alpha blending of said recolored image with said starting image resulting in changing of color of said hair region, wherein said output image is generated from an equation comprising