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Running on Zero
Running on Zero
| title: OpenHTR-Gen | |
| emoji: ✍️ | |
| colorFrom: red | |
| colorTo: yellow | |
| sdk: gradio | |
| sdk_version: 5.35.0 | |
| app_file: app.py | |
| pinned: false | |
| license: other | |
| short_description: Rewrite any handwritten region in the page's style | |
| models: | |
| - black-forest-labs/FLUX.1-Fill-dev | |
| - OpenHTR/OpenHTR-Gen-LoRA | |
| tags: | |
| - spaces | |
| - zero-gpu | |
| - handwriting | |
| - flux | |
| - text-rendering | |
| # OpenHTR-Gen | |
| **English** | [中文](README_zh.md) | |
| Rewrite a region of a Chinese handwritten page in its own handwriting style. | |
| Upload a full-page Chinese handwriting scan, draw a box over the text you want to change, and type | |
| the new text. OpenHTR-Gen re-renders that region so the strokes, ink and paper match the | |
| rest of the page, then returns the generated crop. | |
| ## How to use | |
| 1. **Upload** a full-page handwriting image. | |
| 2. **Select the region.** Use the brush to trace around the text (or paint over it) — the | |
| box is the bounding box of your strokes. Brush size and colour are in the editor toolbar. | |
| 3. **Type the new text** (up to 35 characters). | |
| 4. **Click Generate.** You get the edited crop, plus a preview of the whole page with the | |
| result pasted back in. | |
| ## Settings | |
| | Control | Default | What it does | | |
| | --- | --- | --- | | |
| | Inference steps | 20 | More steps → more detail, slower | | |
| | guidance_scale | 30 | How strongly the new characters are followed | | |
| | Seed | -1 | -1 = random; fix it to reproduce a result | | |
| | Crop padding | 0 | Margin around the output crop | | |
| | Selection padding | 4 px | Expands the detected box | | |
| | x0 / y0 / x1 / y1 | 0 | Manual box in image pixels; overrides the brush | | |
| ## Tips | |
| - Leave a little vertical space inside the box so the new text can blend with neighbouring strokes. | |
| - A generous outline or a filled-in stroke works better than a hairline rectangle. | |
| - If a result looks off, fix nothing but the seed and try again. | |
| ## Notes | |
| - Generation is probabilistic — an occasional garbled character is expected. | |
| - Very large pages work, but editing them in the browser may feel slow. | |
| - FLUX.1 [dev] is released under a **non-commercial** license. Do not use this demo or its | |
| outputs commercially. | |