The image processing apparatus includes a change detecting portion for outputting
a first control signal indicating transition from a small change state to a large
change state and a second control signal indicating transition from a large change
state to a small change state between picture planes of input motion picture data,
and an operation control portion for controlling starting and stopping of recording
or transmission of input motion picture data according to the first control signal
and the second control signal. During recording or transmission, the operation
control portion controls to stop recording or transmission if the first control
signal is not output until after a predetermined arbitrary time T1 elapses
after the second control signal is output.
