Patent ID: 8228436
Filing Date: 2012-07-24
Classification: H04N

Abstract:
1. An image synthesizing apparatus comprising: key image selecting means for selecting an image signal to be used for keying out of image signals inputted on a plurality of input lines; background selecting means for selecting a background image; key processing means for processing the image signal selected by the key image selecting means; image synthesizing means for superimposing a foreground image onto the background image selected by the background selecting means using the image signal processed by the key processing means; a frame memory; part designating means for individually designating regions that are parts of a screen; and writing means for carrying out a write in a storage region corresponding to a region of the screen that has been designated by the part designating means out of storage regions of the frame memory, wherein the image signal that has been selected by the key image selecting means is sent to the key processing means, the image signal that has been processed by the key processing means is sent to the writing means and written into the frame memory, and image signals read from every storage region of the frame memory are sent to the image synthesizing means.