mirror of
https://github.com/pjreddie/darknet.git
synced 2023-08-10 21:13:14 +03:00
Parsing, image loading, lots of stuff
This commit is contained in:
@ -1,24 +1,41 @@
|
||||
#include "maxpool_layer.h"
|
||||
#include <stdio.h>
|
||||
|
||||
image get_maxpool_image(maxpool_layer layer)
|
||||
{
|
||||
int h = (layer.h-1)/layer.stride + 1;
|
||||
int w = (layer.w-1)/layer.stride + 1;
|
||||
int c = layer.c;
|
||||
return double_to_image(h,w,c,layer.output);
|
||||
}
|
||||
|
||||
maxpool_layer *make_maxpool_layer(int h, int w, int c, int stride)
|
||||
{
|
||||
printf("Maxpool Layer: %d x %d x %d image, %d stride\n", h,w,c,stride);
|
||||
maxpool_layer *layer = calloc(1, sizeof(maxpool_layer));
|
||||
layer->h = h;
|
||||
layer->w = w;
|
||||
layer->c = c;
|
||||
layer->stride = stride;
|
||||
layer->output = make_image((h-1)/stride+1, (w-1)/stride+1, c);
|
||||
layer->output = calloc(((h-1)/stride+1) * ((w-1)/stride+1) * c, sizeof(double));
|
||||
layer->delta = calloc(((h-1)/stride+1) * ((w-1)/stride+1) * c, sizeof(double));
|
||||
return layer;
|
||||
}
|
||||
|
||||
void run_maxpool_layer(const image input, const maxpool_layer layer)
|
||||
void forward_maxpool_layer(const maxpool_layer layer, double *in)
|
||||
{
|
||||
image input = double_to_image(layer.h, layer.w, layer.c, in);
|
||||
image output = get_maxpool_image(layer);
|
||||
int i,j,k;
|
||||
for(i = 0; i < layer.output.h*layer.output.w*layer.output.c; ++i) layer.output.data[i] = -DBL_MAX;
|
||||
for(i = 0; i < input.h; ++i){
|
||||
for(j = 0; j < input.w; ++j){
|
||||
for(k = 0; k < input.c; ++k){
|
||||
for(i = 0; i < output.h*output.w*output.c; ++i) output.data[i] = -DBL_MAX;
|
||||
for(k = 0; k < input.c; ++k){
|
||||
for(i = 0; i < input.h; ++i){
|
||||
for(j = 0; j < input.w; ++j){
|
||||
double val = get_pixel(input, i, j, k);
|
||||
double cur = get_pixel(layer.output, i/layer.stride, j/layer.stride, k);
|
||||
if(val > cur) set_pixel(layer.output, i/layer.stride, j/layer.stride, k, val);
|
||||
double cur = get_pixel(output, i/layer.stride, j/layer.stride, k);
|
||||
if(val > cur) set_pixel(output, i/layer.stride, j/layer.stride, k, val);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
Reference in New Issue
Block a user