An imaging apparatus include an imaging processing unit, a dial operation unit, a boundary setting unit, and a control unit. The imaging processing unit acquires image data having a predetermined image effect. The dial operation unit receives a dial operation to set at least one boundary line in the image data. The boundary setting unit sets the boundary line in the image data in response to the dial operation. The control unit controls the imaging processing unit so that image data having different image effects are obtained in the respective partial regions of the image data that are divided by the boundary line set by the boundary setting unit.