> ## Documentation Index
> Fetch the complete documentation index at: https://dripart-docs-custom-nodes-sdk-v2-frontend.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# LTXVImgToVideo - ComfyUI Built-in Node Documentation

> LTXVImgToVideo converts an input image into a video latent representation for video generation models.

LTXVImgToVideo converts an input image into a video latent representation for video generation models. It resizes the image to the requested width and height, encodes it with the VAE, and places the encoded frames at the start of a video-sized latent of zeros. The strength control determines how much of the original image content is preserved versus modified during video generation.

## Inputs

| Parameter    | Description                                                                                                                                                                                                               | Data Type    | Required | Range                 |
| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | -------- | --------------------- |
| `positive`   | Positive conditioning prompts for guiding the video generation                                                                                                                                                            | CONDITIONING | Yes      | -                     |
| `negative`   | Negative conditioning prompts for avoiding certain elements in the video                                                                                                                                                  | CONDITIONING | Yes      | -                     |
| `vae`        | VAE model used for encoding the input image into latent space                                                                                                                                                             | VAE          | Yes      | -                     |
| `image`      | Input image to be converted into video frames                                                                                                                                                                             | IMAGE        | Yes      | -                     |
| `width`      | Output video width in pixels (default: 768, step: 32)                                                                                                                                                                     | INT          | No       | 64 to MAX\_RESOLUTION |
| `height`     | Output video height in pixels (default: 512, step: 32)                                                                                                                                                                    | INT          | No       | 64 to MAX\_RESOLUTION |
| `length`     | Number of frames in the generated video (default: 97, step: 8)                                                                                                                                                            | INT          | No       | 9 to MAX\_RESOLUTION  |
| `batch_size` | Number of videos to generate simultaneously (default: 1)                                                                                                                                                                  | INT          | No       | 1 to 4096             |
| `strength`   | Control over how much of the original image content is preserved in the first frames of the generated video. A value of 1.0 preserves the original image completely, while 0.0 allows maximum modification (default: 1.0) | FLOAT        | No       | 0.0 to 1.0            |

Note: `width` and `height` change in steps of 32 pixels, and `length` changes in steps of 8 frames, matching the video latent compression (32x in the spatial dimensions and 8x in the temporal dimension). The video latent contains ((length - 1) // 8) + 1 frames.

## Outputs

| Output Name | Description                                                                                                                                                     | Data Type    |
| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ |
| `positive`  | The positive conditioning passed through unchanged for use with the generated latent                                                                            | CONDITIONING |
| `negative`  | The negative conditioning passed through unchanged for use with the generated latent                                                                            | CONDITIONING |
| `latent`    | Video latent representation containing the encoded image frames and a noise mask that controls how strongly the conditioning is applied during video generation | LATENT       |

> 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/LTXVImgToVideo/en.md)

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