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1. IN8673/DELNP/2014 - IMAGE PROCESSING DEVICE IMAGE PROCESSING METHOD AND PROGRAM

Office
India
Application Number 8673/DELNP/2014
Application Date 16.10.2014
Publication Number 8673/DELNP/2014
Publication Date 31.08.2016
Publication Kind A
IPC
G06K 9/46
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46Extraction of features or characteristics of the image
Applicants SONY CORPORATION
Inventors SAITO Yasushi
Priority Data 2012098544 24.04.2012 JP
Title
(EN) IMAGE PROCESSING DEVICE IMAGE PROCESSING METHOD AND PROGRAM
Abstract
(EN) A device and a method for performing false color correction occurring in areas of localized highlight in an image are provided. During a data conversion process to generate an RGB array image from an RGBW array image false color pixels are detected; low band signals which correspond to each of the RGBW colors and which differ depending on whether a pixel is a false color pixel or not are calculated; and the RGBW array image is converted by an interpolation process in which the calculated low band signals are applied to generate the RGB array image. In the interpolation process the low band signals are utilized on the basis of the assumption that the W low band signal mW and the RGB low band signals mR mG mB have a proportional relationship within a local area. In cases in which a pixel of interest is a false color pixel the low band signal is calculated by applying a low pass filter having a coefficient in which the contribution of pixel values closer to the pixel of interest is relatively less than that of more distant pixels.