什么是 outpainting？
outpainting 是一种 向图像“外侧”继续扩画 的方法。
不过，它并不是什么特殊的生成方式。
只需在图像外侧特意加上空白，把空白作为掩膜进行 inpainting。
填补图像内部，还是填补外侧新增的空白。区别仅此而已。
如果还没有读过 inpainting，请先看一下。
inpainting 模型
先来看使用 inpainting 模型的方法。
工作流
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- 🟦 使用
Pad Image for Outpainting节点，在图像外侧添加空白。- 它会输出添加空白后的图像，以及标出空白区域的掩膜。
- 🟩 后面的做法和 inpainting/inpainting 专用模型 相同。将图像和掩膜连接到
InpaintModelConditioning节点。
ControlNet inpaint
当然，也可以使用 ControlNet inpaint。
工作流
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},
{
"name": "image",
"type": "IMAGE",
"link": 31
},
{
"name": "vae",
"shape": 7,
"type": "VAE",
"link": 34
}
],
"outputs": [
{
"name": "positive",
"type": "CONDITIONING",
"links": [
37
]
},
{
"name": "negative",
"type": "CONDITIONING",
"links": [
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}
],
"properties": {
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"ver": "0.3.76",
"Node name for S&R": "ControlNetApplyAdvanced"
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"color": "#232",
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{
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"mode": 0,
"inputs": [
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},
"widgets_values": [
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],
"links": [
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],
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],
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22,
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],
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37,
22,
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],
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22,
1,
3,
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"CONDITIONING"
],
[
39,
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0,
22,
2,
"CONTROL_NET"
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[
41,
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"VAE"
],
[
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27,
0,
30,
0,
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],
[
53,
30,
0,
3,
3,
"LATENT"
],
[
54,
31,
0,
24,
0,
"IMAGE"
],
[
55,
31,
0,
27,
0,
"IMAGE"
],
[
56,
31,
1,
24,
1,
"MASK"
],
[
57,
31,
1,
30,
1,
"MASK"
],
[
58,
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0,
31,
0,
"IMAGE"
],
[
59,
31,
0,
32,
0,
"IMAGE"
]
],
"groups": [],
"config": {},
"extra": {
"ds": {
"scale": 0.9090909090909094,
"offset": [
339.9300644695924,
-81.60000000000002
]
},
"frontendVersion": "1.34.6",
"VHS_latentpreview": false,
"VHS_latentpreviewrate": 0,
"VHS_MetadataImage": true,
"VHS_KeepIntermediate": true
},
"version": 0.4
}
- 🟦 使用
Pad Image for Outpainting节点，在图像外侧添加空白。- 它会输出添加空白后的图像，以及标出空白区域的掩膜。
- 🟨 后面的做法和 inpainting/ControlNet inpaint 相同。将图像和掩膜传给 ControlNet inpaint 的预处理节点。
图像编辑模型
使用图像编辑模型会更简单。
在图像外侧加上灰色区域（其实什么颜色都可以），然后把图像交给图像编辑模型。接下来只要用提示词告诉它“自然地 outpaint 灰色区域”即可。
FLUX.2 [klein]
来试试 FLUX.2 [klein] 9B。
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"inputs": [
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],
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},
{
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],
"outputs": [
{
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"slot_index": 0,
"links": [
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]
}
],
"properties": {
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"widgets_values_named": {
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},
{
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"flags": {},
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{
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},
{
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}
],
"outputs": [
{
"name": "LATENT",
"type": "LATENT",
"links": [
74,
75
]
}
],
"properties": {
"Node name for S&R": "VAEEncode",
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},
{
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"type": "ResizeImageMaskNode",
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"flags": {},
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],
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}
],
"properties": {
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],
"outputs": [
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"slot_index": 0,
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]
}
],
"properties": {
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{
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"weight_dtype": "default"
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{
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]
},
{
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"links": null
}
],
"properties": {
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},
"widgets_values": [
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"image"
],
"widgets_values_named": {
"image": "Image_fx (2).jpg",
"upload": "image"
},
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"bgcolor": "#353"
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{
"id": 6,
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"flags": {},
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"mode": 0,
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],
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"slot_index": 0,
"links": [
70
]
}
],
"title": "CLIP Text Encode (Positive Prompt)",
"properties": {
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"cnr_id": "comfy-core",
"ver": "0.3.39"
},
"widgets_values": [
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},
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"type": "ImagePadForOutpaint",
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],
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"type": "IMAGE",
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108,
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]
},
{
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"type": "MASK",
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}
],
"properties": {
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"widgets_values": [],
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},
"order": 6,
"mode": 0,
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}
],
"outputs": [
{
"name": "CONDITIONING",
"type": "CONDITIONING",
"slot_index": 0,
"links": [
86
]
}
],
"title": "CLIP Text Encode (Negative Prompt)",
"properties": {
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"cnr_id": "comfy-core",
"ver": "0.3.39"
},
"widgets_values": [
""
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"widgets_values_named": {
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}
},
{
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"type": "CLIPLoader",
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"flags": {},
"order": 3,
"mode": 0,
"inputs": [],
"outputs": [
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"name": "CLIP",
"type": "CLIP",
"links": [
63,
64
]
}
],
"properties": {
"Node name for S&R": "CLIPLoader",
"cnr_id": "comfy-core",
"ver": "0.3.73"
},
"widgets_values": [
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},
"color": "#432",
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},
{
"id": 45,
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],
"outputs": [
{
"name": "images",
"type": "IMAGE",
"links": null
}
],
"properties": {
"cnr_id": "comfy-core",
"ver": "0.3.73"
},
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],
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}
],
"links": [
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],
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"groups": [],
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- 🟩 不使用掩膜。只需把添加了空白的图像交给模型，并告诉它填补那片区域。