An image processing apparatus and a method for enhancing depth are disclosed. The image processing apparatus may classify an input image into a foreground layer, a middle layer, a background layer, may calculate a representative color of each of the classified layers, and perform rendering of a color stereoscopy of the middle layer and a color stereoscopy of the background layer based on the representative color and a lightness of the background layer, thereby enhancing a stereoscopic effect and a depth. Also, a color temperature of the foreground layer and a color temperature of the middle layer are controlled based on the representative color and the background layer, to generate a difference in depth between the middle layer and the foreground layer, thereby representing an image having a more enhanced depth.