1. Principles of CycleGAN
Translating an image from one domain to another is a common task in computer vision, computer graphics, and image processing. Figure 7.1.1 shows edge detection, which is a common image translation task:
Figure 7.1.1: Example of an aligned image pair: left, original image, and right, transformed image using a Canny edge detector. The original photo was taken by the author.
In this example, we can consider the real photo (left) as an image in the source domain and the edge-detected photo (right) as a sample in the target domain. There are many other cross-domain translation procedures that have practical applications, such as:
- Satellite image to map
- Face image to emoji, caricature, or anime
- Body image to an avatar
- Colorization of grayscale photos
- Medical scan to a real photo
- Real photo to an artist's painting
There are many more examples of this in different fields. In computer vision and image...
