in C++

With the following directions and example please create just the function

thresholding is to transform pixels by only considering the surrounding area, i.e., the local neighborhood of each pixel. The neighborhood of a pixel P is a small matrix of dimensions d x d centered at p. In this case, for each pixel in the image, we are basically calculating a different T. The algorithm below shows how to binarize an image using local thresholding. input: Image A (grayscale) output: Image B (black and white) for each pixel A[i][j] in A do calculate T[i]j] using local neighborhood if A[i][j]