# channelNorm(epsilon:) Adds a channel normalization operation to the current graph. ``` func channelNorm(epsilon: Float = .ulpOfOne.squareRoot()) -> BNNSGraph.Builder.Tensor ``` ## Parameters `epsilon` The epsilon value that the function uses to avoid division by zero. ## Discussion This function performs channel normalization of `self`.`self` must be at least three-dimensional. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)