VL_NNCONCAT - CNN concatenate multiple inputs.

Y = VL_NNCONCAT(INPUTS, DIM) concatenates the inputs in the cell array INPUTS along dimension DIM generating an output Y.

DZDINPUTS = VL_NNCONCAT(INPUTS, DIM, DZDY) computes the derivatives of the block projected onto DZDY. DZDINPUTS has one element for each element of INPUTS, each of which is an array that has the same dimensions of the corresponding array in INPUTS.