VIDEO SIGNAL PROCESSING DEVICE AND METHOD, IMAGE SYNTHESIZING DEVICE, AND EDITING DEVICE

摘要

In combining a foreground image and a background image in accordance with a key signal by, for example, soft chroma key processing, a preview image (102) which is an image obtained as a result of processing by the key signal and a key parameter setting screen (101) for setting characteristics of the key signal are displayed, thus changing the characteristics of the key signal in a three-dimensional space using information obtained through the key parameter setting screen (101), and changing the image as a result of processing on the preview screen (101). Thus, even in the case where the range of key signal setting is to be adjusted in the three-dimensional space, desired processing can be executed by a simple operation.