A deblock filter as defined by the MPEG-4 AVC/H. 264 standard is effectively controlled, and an increase of a compression strain is prevented while the resolution or details are preserved to realize compression of a moving image with high image quality.A moving image compression apparatus according to the present invention includes an imaging section configured to take a moving image of a shooting subject via an optical system and outputting moving image data; a camera control section configured to output control information for controlling an operation of at least one of the optical system and the imaging section at the time of imaging; a moving image compression section configured to compress the moving image data using the correlation between an image to be compressed and a reference image included in the moving image, the moving image compression section including a deblock filter configured to alleviate a block strain of the reference image in accordance with a set deblock filter strength condition; a deblock filter control section configured to set the deblock filter strength condition based on the control information; and a stream generation section configured to embed the deblock filter strength condition in compressed output data.