Image quality of image printing system has been improving rapidly. Depth feeling is important in image quality. Depth feeling is controlled by various factors such as linear perspective, size, overlapping, shade and density so on. Linear perspective is powerful technique for expressing depth on flat surface. Concerning the studies on depth feeling, its dependence on pixel number has been reported. But other factors influence depth feeling is not yet understood well. Landscape image include linear perspective components is generated by computer graphics method. Changing linear perspective intensity, depth feeling is subjectively estimated. It is confirmed that linear perspective is very important in depth feeling.