F.1 Upscaler：Flux专属高清放大CN模型
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Flux Upscaler简介
今天介绍一款Flux社区新发布的Flux专属高清放大ControlNet模型：Flux.1-dev-Controlnet-Upscaler。这是由Jasper研究团队开发的一款Flux.1-dev ControlNet模型，适用于Flux文生图中图像高清放大处理。Flux.1-dev-Controlnet-Upscaler模型是使用了合成的复杂数据降级方案训练的，输入真实图像，并通过结合多种降级方式（如图像噪声（高斯、泊松）、图像模糊和JPEG压缩等）人为地降低其质量处理。同期发布的还包括：Flux.1-dev-Controlnet-Surface-Normals 、Flux.1-dev-Controlnet-Depth模型。
• Flux.1-dev-Controlnet-Upscaler：https://huggingface.co/jasperai/Flux.1-dev-Controlnet-Upscaler
• Flux.1-dev-Controlnet-Surface-Normals：https://huggingface.co/jasperai/Flux.1-dev-Controlnet-Surface-Normals
• Flux.1-dev-Controlnet-Depth：https://huggingface.co/jasperai/Flux.1-dev-Controlnet-Depth
官方演示
Flux Upscaler ComfyUI体验
Flux Upscaler模型可使用ComfyUI的原生ControlNet节点加点，仅需更新ComfyUI到最新版本。需下载Flux.1-dev-Controlnet-Upscaler模型并放置在 /ComfyUI/models/controlnet 目录下（建议rename为：Flux.1-dev-Controlnet-Upscaler.safetensors便于后期管理）。导入下面LIB工作流并安装确实插件即可。在工作流中笔者使用了Florence2PromptGen反推模型，安装详情参见：[ComfyUI]Flux：完美平衡！更适合F1反推模型！30秒速率&1G低显存&CLIP和T5双通道提示&反推和标注皆可用
• 模型下载地址：https://huggingface.co/jasperai/Flux.1-dev-Controlnet-Upscaler/resolve/main/diffusion_pytorch_model.safetensors?download=true
Flux 文生图工作流
关于Flux模型本地ComfyUI工作流体验参见之前文章：FLUX[续篇]：12B参数23G最大开源文生图模型，Dev版直出惊艳美图欣赏.
• FLUX.1哩布在线可运行-黑暗森林工作室：https://www.liblib.art/modelinfo/488cd9d58cd4421b9e8000373d7da123
• F.1-绮梦流光-水湄凝香：https://www.liblib.art/modelinfo/134c6dd95aef48e98a22b24e003e026b
• 工作流-Flux文|图生图+LORA+提示反推一键切换工作流：https://www.liblib.art/modelinfo/782aacd70f604da39e83368c696a02a8
Flux Upscaler工作流
仅需在上面Flux基础图生图工作流基础上增加ControlNet模型加载和ControlNet应用节点即可。工作流下载地址：https://www.liblib.art/modelinfo/8d78a4d5a712418fb504c5e2b9bf45a4
工作流全貌
注意：需要ControlNet模型权重参数调节，体验中发现：使用ControlNet权重越高图像越接近原图，但是容易产生噪点。ControlNet权重越低则与原图变化较大。这里需要根据实际使用场景来平衡ControlNet权重，笔者经验值建议值 0.5 ~0.7 之间，当然也需要根据图像实际测试值平衡最佳画质。另外，本例中笔者使用Flux-fp8模型，全精度DEV模型会爆显存，更低显存请使用GGUF4模型，详情参见：[ComfyUI]Flux：社区欲放弃NF4投向GGUF？更低质量损失，最低6G显存福音
01. Flux文生图 - 弓箭手
本例文生图中使用了F.1-绮梦流光-水湄凝香模型，详情参见：[ComfyUI]Flux：太美啦！绮梦流光-水湄凝香，写实与虚拟混合，极致细节和质感
In this high-definition photography work, a Asian girl is vividly portrayed before our eyes. delicately present the subtle relationship between skin and color,The female protagonist in the picture is in her early twenties, standing on a lush grassland, suspected to be in a sports center. She has fair skin, long hair draped over her shoulders, tied into a high ponytail, and bangs lightly brushing her cheeks. She is dressed in a modern arched outfit, with a black short sleeved sports top paired with a blue receiver and a red number “AGI” on the front chest, complemented by black and blue tight shorts,The girl's expression was strong and focused, with determination revealed between her eyebrows. She tightly held the composite bow with both hands, aimed at the camera, and the bowstring was tight, presenting a strong sense of movement. The smooth black design of the bow body complemented the wrist guard she wore on her left hand, highlighting the high-tech texture,In the background, blurry figures and a red track suggest that this is a track and field. Other archers and audience figures dressed in sportswear shuttle through it, adding vitality to the scene. Bright natural light illuminates the entire scene, creating a clear sky atmosphere,This image is clear and rich in details, emphasizing the focus and sporty style of the subject, perfectly integrating youth, vitality, and rebellious spirit02. ControlNet权重0.2
03. ControlNet权重1
04. ControlNet权重0.6
05. 更多演示
感谢群友@Aཽ༺ཎཽཾ夜岚ནཽཾ༻提供参考图集
a high-resolution photograph featuring a young asian woman lying on her stomach on a carpeted floor in a softly lit room, she is of east asian descent, with fair skin and a slender physique, wearing a beige, semi-transparent bodysuit that accentuates her small to medium-sized breasts and narrow waist, her black hair is tied up in a loose bun, and she has a gentle, inviting smile, looking directly at the camera with large, expressive brown eyes and a slight, inviting gaze, the background includes beige walls and a wooden floor with a geometric pattern, there is a small, light green couch to the right, partially visible in the background, the lighting is soft and natural, casting gentle shadows that enhance the texture of the carpet and the smoothness of her skin, the overall mood of serene and intimate, with a focus on the subject's natural beauty and relaxed posture, the photograph is likely taken in a studio setting, as indicated by the presence of natural light streaming in from a window on the left side of the image, enhancing the softness and warmth of the room \(1girl, solo, long hair, breasts, looking at viewer, smile, black hair, bare shoulders, brown eyes, jewelry, medium breasts, underwear, full body, ponytail, ass, lying, parted lips, indoors, nail polish, covered nipples, lips, one-piece swimsuit, covered navel, makeup, black nails, on stomach, hair bun, sunlight, arm support, realistic, nose, arm behind head最后，国庆假期4090不在身边，为了保持公众号日更（只剩下云端白嫖！）。笔者测试了多家云平台，特别在仙宫云搭建了自己专属Flux全套镜像设施，已内置Flux常用工作流和模型。本着镜像开放使用，今天已公开使用。
平台注册链接：
https://www.xiangongyun.com/register/UJ6IVE
详细使用指南：
https://www.xiangongyun.com/image/detail/994deb2d-d531-43ca-b3f6-12bcd5fd6828?r=UJ6IVE
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