> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-comfy-docs-comfyapi-search.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# NormalizeImages - ComfyUI Built-in Node Documentation

> This node normalizes the colors of an input image by adjusting its pixel values based on a specified mean and standard deviation.

This node normalizes the colors of an input image by adjusting its pixel values based on a specified mean and standard deviation. Each pixel has the mean subtracted from it and is then divided by the standard deviation, which is a common step to standardize image data before other processing.

## Inputs

| Parameter | Description                                          | Data Type | Required | Range       |
| --------- | ---------------------------------------------------- | --------- | -------- | ----------- |
| `image`   | The input image to be normalized.                    | IMAGE     | Yes      | -           |
| `mean`    | Mean value for normalization (default: 0.5).         | FLOAT     | No       | 0.0 - 1.0   |
| `std`     | Standard deviation for normalization (default: 0.5). | FLOAT     | No       | 0.001 - 1.0 |

The `mean` and `std` parameters control the normalization applied to the input image. The default value for both parameters is 0.5.

Note: If the input image has an alpha (transparency) channel, that channel is not normalized. It is copied unchanged to the output because alpha stores transparency rather than color.

Note: The node works with any batch size, so multiple images can be processed at once.

## Outputs

| Output Name | Description                                                                                                                                                                                       | Data Type |
| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- |
| `image`     | The resulting image after the normalization process has been applied. Pixel values are adjusted using the specified mean and standard deviation, and the alpha channel (if present) is preserved. | IMAGE     |

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/NormalizeImages/en.md)

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