![]() This took about an hour and a half to train. We trained the Birds model on 381 images from a search engine.You can play with one edge detection algorithm, known as Canny edge detection, by uploading an image above. To build large datasets of image pairs automatically, researchers convert images to a sketch-like tracing using a technique known as Edge Detection. We need to feed the machine learning algorithm many pairs of outlines and images to learn from, which would take a lot of outline drawing! In our case, we can convert outlines to full-color images! Training these models to create high-quality images takes a LOT of image pairs, and a LOT of computation (Discriminator / Generator competition!) - meaning a lot of time!Īt the end, we can take the highly-skilled Generator algorithm and use it to convert images of the input style to those of the output style. In this way, the two machine learning models improve each other through competition. The Discriminator learns the differences between real and Generator-created fakes. The Generator learns how to fool the Discriminator by learning to make its output more and more realistic. ![]() ![]() The Generator artist is trying to fool the Discriminator critic into thinking they are creating authentic Picasso paintings, when in reality, they are just trying different inputs until the Discriminator is fooled. You can think of the Generator as an artist, and a Discriminator as an art critic. With the GAN technique, we train two machine learning models that compete with one another: the Generator, and the Discriminator. It accomplishes this using a clever machine learning technique known as a Generative Adversarial Network, or GAN. If you train it on pairs of outline drawings (edges) and their corresponding full-color images, the resulting model is able to convert any outline drawing to what it thinks would be the corresponding full-color picture! 2017), converts images from one style to another using a machine learning model trained on pairs of images.
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