Patent ID: 9030539
Filing Date: 2015-05-12
Classification: G09G,H04N

Abstract:
1. An image processing apparatus for creating three image signals using two input images, including a secret image which only particular users can browse and a public image which unspecified persons can browse, and sequentially outputting the image signals therefrom: wherein an area in which a luminance value in the public image is equal to or more than a predetermined value is detected; a region, in which the secret image is displayed, is set in the area; the area is smaller in size than the public image, and the area is equal in size to the secret image; a first image signal, as one of the image signals, which displays the secret image in said region, is created; a second image signal, as one of the image signals, which displays the reverse image which an addition thereof to the secret image for each pixel is an image not having any correlation with the secret image in said region, is created; a third image signal, as one of the image signals, which displays the image obtained by subtracting the added result of luminance of the secret and reverse images from the luminance of the public image, is created; the first, second, and third image signals are sequentially output; and the apparatus comprises an optical shutter control unit which controls, during a period in which at least the first image signal is being outputted, a shutter disposed between a display to which the image signals are inputted and user's eyes to set the shutter to a light transmission state.