A method for processing an image, the method comprising: calculating a vanishing point located at a same position in a plurality of images that are temporally successive; receiving specification of a target object whose privacy is to be protected in at least one of the plurality of images; calculating a target location area, which includes the vanishing point and in which the target object is located in each of the plurality of images; on the basis of the specification of the target object in the at least one of the plurality of images received in the receiving step and the vanishing point calculated in the calculating step of the vanishing point; and performing image processing for protecting privacy in an area in each of the plurality of images located at a same position as the target location area calculated in the calculating step of the target location area; wherein calculating the vanishing point comprises the steps of: detecting feature points corresponding to a plurality of parts of the target object in each of at least two of the plurality of images, associating feature points on a first part of the target object included in the at least two of the plurality of images with each other and feature points on a second part of the target object included in the at least two of the plurality of images with each other, and calculating the vanishing point located at the same position in the plurality of images by calculating an intersection point between a first straight line connecting the associated feature points on the first part and a second straight line connecting the associated feature points on the second part. calculating a vanishing point located at a same position in a plurality of images that are temporally successive; receiving specification of a target object whose privacy is to be protected in at least one of the plurality of images; calculating a target location area, which includes the vanishing point and in which the target object is located in each of the plurality of images; on the basis of the specification of the target object in the at least one of the plurality of images received in the receiving step and the vanishing point calculated in the calculating step of the vanishing point; and performing image processing for protecting privacy in an area in each of the plurality of images located at a same position as the target location area calculated in the calculating step of the target location area; wherein calculating the vanishing point comprises the steps of: detecting feature points corresponding to a plurality of parts of the target object in each of at least two of the plurality of images, associating feature points on a first part of the target object included in the at least two of the plurality of images with each other and feature points on a second part of the target object included in the at least two of the plurality of images with each other, and calculating the vanishing point located at the same position in the plurality of images by calculating an intersection point between a first straight line connecting the associated feature points on the first part and a second straight line connecting the associated feature points on the second part. detecting feature points corresponding to a plurality of parts of the target object in each of at least two of the plurality of images, associating feature points on a first part of the target object included in the at least two of the plurality of images with each other and feature points on a second part of the target object included in the at least two of the plurality of images with each other, and calculating the vanishing point located at the same position in the plurality of images by calculating an intersection point between a first straight line connecting the associated feature points on the first part and a second straight line connecting the associated feature points on the second part.