FIELD: computer technology. SUBSTANCE: device has line-by-line delay unit, on-like memory unit, unit for computing average value and solution taking unit. Condition encoder and multipliers are brought into the device additionally. Due to these units 3x3 pixels (image elements) window is formed in the device, which permits to achieve low level of noise without application of additional low-frequency filters. EFFECT: simplified construction; reduced time for processing. 8 cl, 17 dwg
