From d9f1b0b16edeb59281355a855e18a8be343fc33c Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Fri, 08 Aug 2014 19:04:15 +0000
Subject: [PATCH] probably how maxpool layers should be
---
src/data.c | 37 +++++++++++++++++++++++++++++++++++++
1 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/src/data.c b/src/data.c
index 30ee9ec..846b950 100644
--- a/src/data.c
+++ b/src/data.c
@@ -131,6 +131,7 @@
d.y = y;
FILE *fp = fopen(filename, "rb");
+ if(!fp) file_error(filename);
for(i = 0; i < 10000; ++i){
unsigned char bytes[3073];
fread(bytes, 1, 3073, fp);
@@ -140,10 +141,46 @@
X.vals[i][j] = (double)bytes[j+1];
}
}
+ translate_data_rows(d, -144);
+ scale_data_rows(d, 1./128);
+ //normalize_data_rows(d);
fclose(fp);
return d;
}
+data load_all_cifar10()
+{
+ data d;
+ d.shallow = 0;
+ int i,j,b;
+ matrix X = make_matrix(50000, 3072);
+ matrix y = make_matrix(50000, 10);
+ d.X = X;
+ d.y = y;
+
+
+ for(b = 0; b < 5; ++b){
+ char buff[256];
+ sprintf(buff, "data/cifar10/data_batch_%d.bin", b+1);
+ FILE *fp = fopen(buff, "rb");
+ if(!fp) file_error(buff);
+ for(i = 0; i < 10000; ++i){
+ unsigned char bytes[3073];
+ fread(bytes, 1, 3073, fp);
+ int class = bytes[0];
+ y.vals[i+b*10000][class] = 1;
+ for(j = 0; j < X.cols; ++j){
+ X.vals[i+b*10000][j] = (double)bytes[j+1];
+ }
+ }
+ fclose(fp);
+ }
+ //normalize_data_rows(d);
+ translate_data_rows(d, -144);
+ scale_data_rows(d, 1./128);
+ return d;
+}
+
void randomize_data(data d)
{
int i;
--
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