CODEWITHSUNDEEP
caffemnist
Mojo Jojo
Mojo Jojo

Reputation: 489

mnist dataset Lenet training

I am new to caffe. To train Lenet with mnist dataset,I downloaded the data to the data/mnist in caffe. When trying to convert to lmdb, using ./examples/mnist/create_mnist.sh , I get error as :

 Creating lmdb...
F0225 16:39:23.937786 23330 convert_mnist_data.cpp:45] Check failed: image_file Unable to open file data/mnist/train-images-idx3-ubyte
*** Check failure stack trace: ***
    @     0x7f5d0f0e8daa  (unknown)
    @     0x7f5d0f0e8ce4  (unknown)
    @     0x7f5d0f0e86e6  (unknown)
    @     0x7f5d0f0eb687  (unknown)
    @           0x4045df  convert_dataset()
    @           0x402943  main
    @     0x7f5d0de99ec5  (unknown)
    @           0x40298c  (unknown)
    @              (nil)  (unknown)
Aborted (core dumped)
F0225 16:39:24.025714 23334 convert_mnist_data.cpp:45] Check failed: image_file Unable to open file data/mnist/t10k-images-idx3-ubyte
*** Check failure stack trace: ***
    @     0x7faa1af57daa  (unknown)
    @     0x7faa1af57ce4  (unknown)
    @     0x7faa1af576e6  (unknown)
    @     0x7faa1af5a687  (unknown)
    @           0x4045df  convert_dataset()
    @           0x402943  main
    @     0x7faa19d08ec5  (unknown)
    @           0x40298c  (unknown)
    @              (nil)  (unknown)
Aborted (core dumped)
Done.

Can somebody help me with this? What exactly could be the issue?

Upvotes: 4

Views: 1859

Answers (6)

Feng Donghai
Feng Donghai

Reputation: 1

You should run your script from the $CAFFE_ROOT, such as the following: 

sudo sh /examples/mnist/create_mnist.sh

Upvotes: 0

Sayantan Auddy
Sayantan Auddy

Reputation: 11

Download the mnist dataset from another location (http://yann.lecun.com/exdb/mnist/), place them in $CAFFE_ROOT/data/ and unzip them. After that ./examples/mnist/create_mnist.sh works when run from $CAFFE_ROOT. At least for me it worked.

Upvotes: 0

James Hou
James Hou

Reputation: 1

I met the same problem. In $CAFFE_ROOT/data/minist/get_mnist.sh, line 15: gunzip ${fname}.gz I use ubuntu 14.04 and I don't know why it failed when gunzip train-images-idx3-ubyte.tz and t10k-images-idx3-ubyte.tz.

As a result, there are no train-images-idx3-ubyte and t10k-images-idx3-ubyte. In $CAFFE_ROOT/examples/mnist/create_mnist.sh, it failed to convert them to lmdb format.

So I just gunzip them in OSX and then conversion worked.

Upvotes: 0

balalolaq
balalolaq

Reputation: 21

rename your mnist dataset,because you downloaded mnist dataset maybe was "t10k-images.idx3-ubyte" but it is the "t10k-images-idx3-ubyte" in create_mnist.sh,so you have to use '-'instead of '.'

Upvotes: 2

TanLingxiao
TanLingxiao

Reputation: 412

You can use absolutely path not like data/mnist/t10k-images-idx3-ubyte.caffe sometimes can't get it.

Upvotes: 2

Mojo Jojo
Mojo Jojo

Reputation: 489

The manual compilation worked, though the script failed for unknown reason.

Upvotes: 2

Related Questions