Convolutional Neural Networks (CNNs) are a type of deep learning model widely used for image and video processing tasks, such as image classification, object detection, and facial recognition. CNNs are particularly well-suited for tasks involving spatial data because they can automatically capture spatial hierarchies of features (edges, textures, shapes, etc.) through layers of convolutions.
Here’s a breakdown of how CNNs work:
- The input to a CNN is usually an image, represented as a tensor (a multi-dimensional array) with dimensions corresponding to height, width, and the number of color channels (e.g., 3 for RGB images).
- For example, a 224x224 RGB image would be represented as a tensor of shape
(224, 224, 3)
.