Linear Filter
The Linear Filter module applies a convolution operator on a 1x3 sliding window directly on the data flow as it comes from the camera. The 3 elements of the convolution kernel (A, B, and C) are configurable accepting any positive integers where the sum of the 3 elements is a value between 1 and 512.
This figure illustrates the positioning of the convolution kernel elements within a given ROI:
Linear Filter kernel disposition
When an element of the kernel is located outside of the ROI boundaries (typical sliding window problem), its input pixel value is replaced by the central window pixel.
Linear Filter behavior at the ROI boundaries.
See also in the GenICam Reference (Data Stream Module)