TensorFlow in Action

6 Teaching machines to see: Image classification with CNNs

This chapter covers

• Exploratory data analysis on image data in Python
• Preprocessing and feeding data via image pipelines
• Using the Keras functional API to implement a complex CNN model
• Training and evaluating the CNN model

We have already done a fair bit of work on CNNs. CNNs are a type of network that can operate on two-dimensional data, such as images. CNNs use the convolution operation to create feature maps of images (i.e., a grid of pixels) by moving a kernel (i.e., a smaller grid of values) over the image to produce new values. The CNN has several of these layers that generate more and more high-level feature maps as they get deeper. You can also use max or average pooling layers ...