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Parsing, image loading, lots of stuff

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Joseph Redmon
2013-11-13 10:50:38 -08:00
parent d7286c2732
commit 2db9fbef2b
29 changed files with 1295 additions and 278 deletions
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33
src/maxpool_layer.c
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@ -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);
}
}
}
}