Image processing apparatus and image processing method

摘要

An area where a specific object is captured is extracted as a specific area from the image of a frame of interest, and the evaluation value of the specific area is obtained using a predetermined evaluation formula. It is determined whether the evaluation value of the specific area in a frame preceding the frame of interest has exceeded a predetermined threshold. When it is determined that the evaluation value of the specific area has exceeded the predetermined threshold, the frame of interest is encoded to set the code amount of the specific area in the image of the frame of interest to be smaller than that of the specific area in the image of the frame preceding the frame of interest.

主权项

1. An image processing apparatus which encodes respective frames that form a moving image, comprising:
an extraction unit configured to extract a specific area from a frame based on an object appearing in the frame; an evaluation unit configured to obtain an evaluation value of the specific area; a determination unit configured to determine, on the basis of the evaluation value of the specific area in a preceding frame preceding the frame, an encoding parameter being used for encoding the specific area in the frame so that a code amount of the specific area in the frame is smaller than a code amount of the specific area in the preceding frame in a case where the evaluation values of the specific areas in the frame and preceding frame exceed a predetermined threshold, wherein an object which is detected from the frame for extracting the specific area from the frame corresponds to an object which is detected from the preceding frame for extracting the specific area from the preceding frame; and an encoding unit configured to encode the specific area in the frame on the basis of the encoding parameter which is determined by said determination unit for the frame.