Video intelligence expansion (LTX 2.3Dev Dare / Distilled ImagePad KJ

This is a cinematic video outpainting application based on LTX 2.3 Dev-Dare / Distilled video model + ImagePad outpainting canvas + KJ size adaptation + IC-LoRA video guidance + Gemma API prompt encoding + color correction + video stitching output. After a user uploads an original video, the system first expands the canvas using ImagePad, standardizes the size via KJ Resize, passes it to LTX 2.3 to generate the outer completion areas, and finally stitches the original video and the expanded footage into a larger-format video.

Compared to the previous version, the advantages of this edition are: The outpainting canvas is more direct, the sizing pipeline is clearer, making it suitable for left-right expansion, top-bottom expansion, and widescreen reconstruction. This is not ordinary image outpainting; it performs outpainting for continuous video frames: the subject, motion, and camera pacing of the original video are preserved, while the outer space of the frame is generated and completed by LTX 2.3. It is ideal for expanding vertical videos into horizontal ones, narrow aspect ratios into cinematic widescreen, as well as filling in background architecture, sky, ground, stages, mountains and seas, cityscapes, and commercial spaces. When using, it is recommended to focus on controlling three items: the input video determines the subject and movement, the global prompt (used to write overall frame rules) determines the outpainting space style, and segmented prompts (describing action changes for each time period) determine the background completion changes across different time periods.
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