Aerial perspective is one of characteristic phenomenon for Japanese landscape. Especially hazy scenery is impressive and important. However the effect of haze is close related to human perception, so it is too difficult to clear how it can be known. Therefore we propose the way to estimate it using Frequency Space and its contrast sensitivity (CSF). First we try to lead two kinds of formula of the estimation of CSF according to distance from human eyes. Next we examine CSF for several people using a striped pattern in the field. The result of examination is almost same as the estimation from formula-1 as variance. On the contrary it is the same as the estimation from formula-2 as mean of error.
