| 摘要 |
<p>PURPOSE:To secure the continuity of image data by using a value obtained by multiplying each picture element by a function for using plural picture elements around the picture element concerned as a signal value after interpolating at every block on the receiving side. CONSTITUTION:A signal thinned based on an ordinary method and sent from the transmission side is inputted to a decoding circuit 10 and interpolated similarly to the ordinary method. The output of the circuit 10 is applied to an interpolating circuit 20 to execute interpolating operation for removing discontinuity generated among respective bloks formed at the time of thinning. When the value of the remarked picture element is Z0, a value just before the Z0 is Z<-1>, a value separated by 2 before the Z0 is Z<-2>, a value just after the Z0 is Z<1>, and a value separated by 2 after the Z0 is Z<2>, a function f(z) expressed by the shown equation is formed and the value of the function f(z) is set up to a new signal value for the remarked picture element Z0. Consequently, the continuity of the image data can be secured.</p> |
