> ## Documentation Index > Fetch the complete documentation index at: https://comfytv.org/llms.txt > Use this file to discover all available pages before exploring further. # Split Parts > Segment an image into separate part cutouts — click or box the pieces you want (a strap, a buckle, a logo), or name them by text — and get each one back as its own image. Split Parts ## What this node does Split Parts runs a segmentation workflow (backed by a SAM-style model) to cut an image into individual parts. You tell it what to isolate in one of two ways: * **On the card**, click points on the parts you want (positive/negative point prompts) or draw boxes around them. Those prompts are stored as JSON in `parts_data`. * **By text** (with a text-driven workflow), type a concept in `main_prompt` such as `strap`, `buckle`, or `logo`. Each point group or box becomes a separate segmentation call, and the resulting part images are merged into one numbered batch. This is a ▶ Run stage: it dispatches the chosen `workflow` to a Runner (local ComfyUI or a remote server) and needs a GPU pass, so it is not instant. After a successful run the parts appear as a numbered grid on the node; clicking a thumbnail sets `selected_index` to pick one for the single-image output. Outputs are ComfyTV snapshots, not native tensors — insert a **Bridge** to feed native ComfyUI nodes ([bridges docs](https://github.com/jtydhr88/ComfyTV/blob/main/docs/bridges.md)). ## When to use it * Break a product photo into components (buckle, strap, sole) to edit or re-texture each separately. * Isolate a logo or badge from a garment for cleanup or replacement. * Pull several named objects out of one frame in a single pass, then pick the one you need downstream. ## Parameters ### workflow Which segmentation workflow to run (dropdown, options from the `split-part` workflow set, with a default). Text-prompt-driven workflows use `main_prompt`; point/box workflows use what you draw on the card. ### main\_prompt The concept to segment when using a text workflow — e.g. `strap`, `buckle`, `logo`. If you neither drew points/boxes nor typed a prompt, the stage errors and asks you to do one of them. ### image Optional `COMFYTV_IMAGE` input — the source image to split. Connect the picture whose parts you want to separate. ### parts\_data Internal (hidden). JSON of the point groups and boxes you drew on the card, in source-image pixel coordinates. You never edit this by hand; the card UI writes it. ### selected\_index Internal (hidden), default `1`, 1-indexed. Which part from the batch feeds the single-image output. Set by clicking a thumbnail in the node's output grid. ### custom\_params Internal (hidden). JSON of any user-defined parameter attachments for this node. ## Outputs | Output | Type | Meaning | | ---------- | ---------------- | ------------------------------------------------- | | **images** | `COMFYTV_IMAGES` | All segmented part images, numbered `#1`, `#2`, … | | **image** | `COMFYTV_IMAGE` | The single part chosen by `selected_index` | ## Tips * Multiple point groups / boxes each run as a separate segmentation, so you can pull out several parts in one Run; they come back merged and renumbered. * Positive vs negative points matter: negative clicks tell the model what to exclude, which helps carve one part cleanly away from a neighboring one. * If segmentation runs but returns nothing, the stage reports an empty result — try different points/boxes or a lower threshold in the workflow's params. ## Related nodes * **Mask Cleanup** — tidy the alpha of a part cutout before compositing. * **Image Picker** — an alternate way to pick one image out of a batch downstream. * **Cutout** — subject-vs-background separation when you want one foreground, not per-part pieces.