问题
So i have a bunch of images (PNG) and their names can be used as labels. Is there a tool or an example on how i can take those images and create a dataset like the MNIST IDX one.
There are a lot of examples on how to read them but no examples on how to create them.
Any help would be greatly appreciated!
回答1:
This can help.
The -images- files were written using the function save-idx3-ubyte and the -labels- files with the function save-idx1-ubyte. The functions in questions are defined in lush/lsh/libidx/idx-io.lsh The file format is described in the section "IDX file format for compilable I/O" which is under "standard libraries" -> "Tensor/Matrix/Scalar/Vector libraries" -> "IDX reading and writing".
The 32-bit ints in the header of the files may be byte-swapped.
-- Yann
http://sourceforge.net/p/lush/mailman/message/28879896/
来源：https://stackoverflow.com/questions/26898682/how-to-create-a-file-like-the-mnist-dataset