Eltwise层的操作有三个:product(点乘), sum(相加减) 和 max(取大值),其中sum是默认操作。
假设输入(bottom)为A和B,如果要实现element_wise的A+B,即A和B的对应元素相加,prototxt文件如下:
layer {name: "eltwise_layer"type: "Eltwise"bottom: "A"bottom: "B"top: "diff"eltwise_param {operation: SUM} }
如果实现A-B,则prototxt为:
layer {name: "eltwise_layer"type: "Eltwise"bottom: "A"bottom: "B"top: "diff"eltwise_param {operation: SUMcoeff: 1coeff: -1} }
其中A和B的系数(coefficient)都要给出!