> ## Documentation Index
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# NormalizeImages - ComfyUI Built-in Node Documentation

> Complete documentation for the NormalizeImages node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> 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)

This node adjusts the pixel values of an input image using a mathematical normalization process. It subtracts a specified mean value from each pixel and then divides the result by a specified standard deviation. This is a common preprocessing step to prepare image data for other machine learning models.

## Inputs

| Parameter | Data Type | Required | Range       | Description                                                                |
| --------- | --------- | -------- | ----------- | -------------------------------------------------------------------------- |
| `image`   | IMAGE     | Yes      | -           | The input image to be normalized.                                          |
| `mean`    | FLOAT     | No       | 0.0 - 1.0   | The mean value to subtract from the image pixels (default: 0.5).           |
| `std`     | FLOAT     | No       | 0.001 - 1.0 | The standard deviation value to divide the image pixels by (default: 0.5). |

## Outputs

| Output Name | Data Type | Description                                                           |
| ----------- | --------- | --------------------------------------------------------------------- |
| `image`     | IMAGE     | The resulting image after the normalization process has been applied. |