Patent ID: 8655095
Filing Date: 2014-02-18
Classification: G06T,H04N

Abstract:
1. An image correction apparatus, comprising: a calculator configured to calculate pixel intensity index and gradient index for each pixel of an input image based on brightness values of a target pixel and its adjacent pixels; a smoothing unit configured to smooth the gradient index of each pixel; a blurred area detection unit configured to detect, for each pixel, whether or not each pixel is included in a blurred area, by using the pixel intensity index and the smoothed gradient index of a corresponding pixel; a correction amount calculation unit configured to calculate an amount of a correction for a pixel that belongs to the blurred area based on the pixel intensity index and the smoothed gradient index of a corresponding pixel; and a correction unit configured to receive the input image not via the smoothing unit and to correct the input image, that is not smoothed by the smoothing unit, by using the amount of a correction calculated by the correction amount calculation unit.