每日备份 2026-03-27

2026-03-27 23:38:45 +08:00
parent 4f11cd7b03
commit d09281e48c
827 changed files with 6991 additions and 148648 deletions
@@ -0,0 +1,93 @@
+# Inpainting
+
+Replace or remove parts of an image using AI.
+
+## How It Works
+
+1. Provide source image
+2. Create mask (white = area to change)
+3. Optionally describe replacement content
+4. AI fills masked area matching surrounding context
+
+## Tools
+
+### DALL-E 2 (OpenAI)
+
+```python
+from openai import OpenAI
+client = OpenAI()
+
+response = client.images.edit(
+    model="dall-e-2",
+    image=open("image.png", "rb"),
+    mask=open("mask.png", "rb"),
+    prompt="A sunny beach with palm trees",
+    size="1024x1024"
+)
+```
+
+**Requirements:**
+- Image must be square PNG
+- Mask: transparent areas = edit zone
+- Max 4MB per file
+
+### Stable Diffusion Inpaint
+
+```python
+from diffusers import StableDiffusionInpaintPipeline
+import torch
+
+pipe = StableDiffusionInpaintPipeline.from_pretrained(
+    "runwayml/stable-diffusion-inpainting",
+    torch_dtype=torch.float16
+)
+pipe.to("cuda")
+
+result = pipe(
+    prompt="A fluffy cat",
+    image=init_image,
+    mask_image=mask,
+    num_inference_steps=30,
+    guidance_scale=7.5
+).images[0]
+```
+
+**Key parameters:**
+- `strength` — How much to change (0.5-1.0)
+- `guidance_scale` — Prompt adherence (5-15)
+
+### IOPaint (Local, Free)
+
+```bash
+# Install
+pip install iopaint
+
+# Run web UI
+iopaint start --model lama --port 8080
+```
+
+**Models:**
+- `lama` — Fast, good for object removal
+- `ldm` — Better quality, slower
+- `sd` — Stable Diffusion backend
+
+## Best Practices
+
+- **Extend mask slightly** — cover edges of object to remove
+- **Describe surroundings** — "grassy field" helps context
+- **Multiple passes** — for large areas, edit in chunks
+- **Clean up edges** — blend modes in photo editor
+
+## Object Removal (No Prompt)
+
+For pure removal without replacement:
+- Use LaMa model (designed for removal)
+- Leave prompt empty or minimal
+- AI infers from surrounding context
+
+## Common Issues
+
+- **Visible seams** — feather mask edges
+- **Wrong content** — be more specific in prompt
+- **Repeating patterns** — edit in smaller sections
+- **Color mismatch** — adjust levels after inpainting