A driver assistance apparatus configured to be included in a vehicle having an Idle Stop and Go function, the apparatus comprising: at least one camera (195a-e) configured to acquire a forward image or an around view image of the vehicle; and wherein the apparatus further comprises a processor configured to: turn on the Idle Stop and Go function when a first condition is satisfied, wherein the first condition is a condition in which input to a brake input unit is received in a state in which a vehicle speed is a reference speed or less during traveling and there is no input via an acceleration input unit, detect information (532, 533, 534, 536) from the image; and provide a control signal for turning off the Idle Stop and Go function based on the detected information (532, 533, 534, 536), even if the first condition is satisfied, wherein the camera (195a-e) is configured to acquire an image capturing at least one of a traffic light, a traffic sign, and a road surface, wherein the processor is configured to detect the information (532, 533, 534, 536) from at least one of a traffic light, a traffic sign and a road surface detected from the image, and characterized in that the processor is configured to: determine that the vehicle slows down or temporarily stops for an unprotected left-turn or an unprotected right-turn based on the image, detect pedestrian go information from the image including an approaching pedestrian traffic light of the traffic light as the vehicle makes the unprotected left-turn or the unprotected right-turn, and provide, when the vehicle is a Left Hand Drive vehicle and the Left Hand Drive vehicle makes the unprotected left-turn, or when the vehicle is a Right Hand Drive vehicle and the Right Hand Drive vehicle makes the unprotected right-turn, the control signal to turn off the Idle Stop and Go function upon detecting pedestrian go information. at least one camera (195a-e) configured to acquire a forward image or an around view image of the vehicle; and wherein the apparatus further comprises a processor configured to: turn on the Idle Stop and Go function when a first condition is satisfied, wherein the first condition is a condition in which input to a brake input unit is received in a state in which a vehicle speed is a reference speed or less during traveling and there is no input via an acceleration input unit, detect information (532, 533, 534, 536) from the image; and provide a control signal for turning off the Idle Stop and Go function based on the detected information (532, 533, 534, 536), even if the first condition is satisfied, turn on the Idle Stop and Go function when a first condition is satisfied, wherein the first condition is a condition in which input to a brake input unit is received in a state in which a vehicle speed is a reference speed or less during traveling and there is no input via an acceleration input unit, detect information (532, 533, 534, 536) from the image; and provide a control signal for turning off the Idle Stop and Go function based on the detected information (532, 533, 534, 536), even if the first condition is satisfied, wherein the camera (195a-e) is configured to acquire an image capturing at least one of a traffic light, a traffic sign, and a road surface, wherein the processor is configured to detect the information (532, 533, 534, 536) from at least one of a traffic light, a traffic sign and a road surface detected from the image, and characterized in that the processor is configured to: determine that the vehicle slows down or temporarily stops for an unprotected left-turn or an unprotected right-turn based on the image, detect pedestrian go information from the image including an approaching pedestrian traffic light of the traffic light as the vehicle makes the unprotected left-turn or the unprotected right-turn, and provide, when the vehicle is a Left Hand Drive vehicle and the Left Hand Drive vehicle makes the unprotected left-turn, or when the vehicle is a Right Hand Drive vehicle and the Right Hand Drive vehicle makes the unprotected right-turn, the control signal to turn off the Idle Stop and Go function upon detecting pedestrian go information.