The MNIST database of Handwritten upper-case letters is a subset derived from NIST Special Database 19 Handprinted Forms and Characters Database, and developed at IDIAP. It comprises the image files of handwritten upper-case letters, which have been size-normalized and centered in a fixed-size image. Generally the image files were written in SVM-Torch format, it's convenient for the Torch users, it's also easy to transfer it into other format. There is software attached with INIST, which used to get visiable image files.
Pascal Frossard, Thomas Maugey, Roberto Gerson De Albuquerque Azevedo
Dario Floreano, Fabrizio Schiano, Maxim Pavliv, Giuseppe Loianno