Deep Belief Nets in C++ and CUDA C: Volume 2: Autoencoding in the Complex Domain

© Timothy Masters 2018

Timothy MastersDeep Belief Nets in C++ and CUDA C: Volume 2https://doi.org/10.1007/978-1-4842-3646-8_3

3. Image Preprocessing

Timothy Masters¹ 

(1)

Ithaca, New York, USA

 

An enormous variety of algorithms exist for preprocessing images for presentation to a model. This chapter will discuss only one such algorithm, though it is an important one whose computational details are often glossed over in other references. Here we will downplay the deep theory, which is widely available, and focus on the practical implementation details, which are not so widely available.

The Fourier Transform in Two Dimensions

We have already studied the Fourier transform in one dimension. (You may want to review the material starting on page 41.) It is ...