1. A portable image pick-up device comprising: an image pick-up condition adjusting section that causes, in a case where a pick-up candidate image includes an image of an object which the image represents a feature matching with or being similar to a feature of an image of a predetermined object which the feature is represented by an object feature information, the object whose image is included in the pick-up candidate image to be subjected to optimization of an image pick-up condition, the pick-up candidate image being a candidate for an image to be picked up; and an indicating section that causes an image of at least one object in the pick-up candidate image to be surrounded by a frame so that an image of an object which is to be subjected to the optimization of the image pick-up condition is surrounded by a frame whose color or line is different from that of a frame surrounding an image of another object in the pick-up candidate image which is not to be subjected to the optimization, the indicating section being provided with a touch panel, the object feature information including information representing a feature of an image of an object frequently picked up as an object by a user, the image pick-up condition adjusting section selecting the object which is to be subjected to the optimization of the image pick-up condition, and then changing, in accordance with an instruction entered via the touch panel by the user, the object which is to be subjected to the optimization of the image pick-up condition to another object in the pick-up candidate image.