From a392bbd0c957a00e3782c96e7ced84a29ff9dd88 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Tue, 15 Mar 2016 05:33:02 +0000
Subject: [PATCH] Play along w/ alphago
---
src/crop_layer.c | 94 ++++++++++++++++++++++++++++++++---------------
1 files changed, 64 insertions(+), 30 deletions(-)
diff --git a/src/crop_layer.c b/src/crop_layer.c
index 819b754..66f11eb 100644
--- a/src/crop_layer.c
+++ b/src/crop_layer.c
@@ -2,57 +2,91 @@
#include "cuda.h"
#include <stdio.h>
-image get_crop_image(crop_layer layer)
+image get_crop_image(crop_layer l)
{
- int h = layer.crop_height;
- int w = layer.crop_width;
- int c = layer.c;
- return float_to_image(w,h,c,layer.output);
+ int h = l.out_h;
+ int w = l.out_w;
+ int c = l.out_c;
+ return float_to_image(w,h,c,l.output);
}
-crop_layer *make_crop_layer(int batch, int h, int w, int c, int crop_height, int crop_width, int flip)
+crop_layer make_crop_layer(int batch, int h, int w, int c, int crop_height, int crop_width, int flip, float angle, float saturation, float exposure)
{
fprintf(stderr, "Crop Layer: %d x %d -> %d x %d x %d image\n", h,w,crop_height,crop_width,c);
- crop_layer *layer = calloc(1, sizeof(crop_layer));
- layer->batch = batch;
- layer->h = h;
- layer->w = w;
- layer->c = c;
- layer->flip = flip;
- layer->crop_width = crop_width;
- layer->crop_height = crop_height;
- layer->output = calloc(crop_width*crop_height * c*batch, sizeof(float));
+ crop_layer l = {0};
+ l.type = CROP;
+ l.batch = batch;
+ l.h = h;
+ l.w = w;
+ l.c = c;
+ l.scale = (float)crop_height / h;
+ l.flip = flip;
+ l.angle = angle;
+ l.saturation = saturation;
+ l.exposure = exposure;
+ l.out_w = crop_width;
+ l.out_h = crop_height;
+ l.out_c = c;
+ l.inputs = l.w * l.h * l.c;
+ l.outputs = l.out_w * l.out_h * l.out_c;
+ l.output = calloc(l.outputs*batch, sizeof(float));
#ifdef GPU
- layer->output_gpu = cuda_make_array(layer->output, crop_width*crop_height*c*batch);
+ l.output_gpu = cuda_make_array(l.output, l.outputs*batch);
+ l.rand_gpu = cuda_make_array(0, l.batch*8);
#endif
- return layer;
+ return l;
}
-void forward_crop_layer(const crop_layer layer, network_state state)
+void resize_crop_layer(layer *l, int w, int h)
+{
+ l->w = w;
+ l->h = h;
+
+ l->out_w = l->scale*w;
+ l->out_h = l->scale*h;
+
+ l->inputs = l->w * l->h * l->c;
+ l->outputs = l->out_h * l->out_w * l->out_c;
+
+ l->output = realloc(l->output, l->batch*l->outputs*sizeof(float));
+ #ifdef GPU
+ cuda_free(l->output_gpu);
+ l->output_gpu = cuda_make_array(l->output, l->outputs*l->batch);
+ #endif
+}
+
+
+void forward_crop_layer(const crop_layer l, network_state state)
{
int i,j,c,b,row,col;
int index;
int count = 0;
- int flip = (layer.flip && rand()%2);
- int dh = rand()%(layer.h - layer.crop_height + 1);
- int dw = rand()%(layer.w - layer.crop_width + 1);
+ int flip = (l.flip && rand()%2);
+ int dh = rand()%(l.h - l.out_h + 1);
+ int dw = rand()%(l.w - l.out_w + 1);
+ float scale = 2;
+ float trans = -1;
+ if(l.noadjust){
+ scale = 1;
+ trans = 0;
+ }
if(!state.train){
flip = 0;
- dh = (layer.h - layer.crop_height)/2;
- dw = (layer.w - layer.crop_width)/2;
+ dh = (l.h - l.out_h)/2;
+ dw = (l.w - l.out_w)/2;
}
- for(b = 0; b < layer.batch; ++b){
- for(c = 0; c < layer.c; ++c){
- for(i = 0; i < layer.crop_height; ++i){
- for(j = 0; j < layer.crop_width; ++j){
+ for(b = 0; b < l.batch; ++b){
+ for(c = 0; c < l.c; ++c){
+ for(i = 0; i < l.out_h; ++i){
+ for(j = 0; j < l.out_w; ++j){
if(flip){
- col = layer.w - dw - j - 1;
+ col = l.w - dw - j - 1;
}else{
col = j + dw;
}
row = i + dh;
- index = col+layer.w*(row+layer.h*(c + layer.c*b));
- layer.output[count++] = state.input[index];
+ index = col+l.w*(row+l.h*(c + l.c*b));
+ l.output[count++] = state.input[index]*scale + trans;
}
}
}
--
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