ComfyUI - Achieve Perfect Image Upscaling with This Technique !

In the field of image enhancement, there is a continuous effort to improve resolution and sharpness while preserving the authenticity of the original content. This pursuit has led to the development of various techniques. One significant advancement is the combination of Ultimate SD Upscale with ControlNet models in ComfyUI. This guide provides a detailed walkthrough on how to use these tools together to upscale images accurately, covering everything from setting up the custom node to thoroughly analyzing the improved results.
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#ComfyUI
#Upscaler

[@philippeheritier9364]

it's true that it's excellent but during the rendering time you have time to go on vacation to Honolulu, 44 minutes for me with an RTX 4080. A big thx for the tut and the workflow

[@motopaediatheview9284]

Really? Honestly take less than 10' on an old 1060 GTX 6GB VRAM :o I am not 'really' satisfied with resulting image but I am using old cartoon image, and I should modify few parameters I guess.

[@L3X369]

Why do we need the prompt in this case?

[@CgTopTips]

In fact, writing a prompt doesn't have a significant impact on this workflow; it only helps the program slightly better understand what we want. For this reason, we wrote a very short and simple prompt

[@林达达]

cant work..- **Node Type:** ControlNetLoader - **Exception Type:** _pickle.UnpicklingError - **Exception Message:** invalid load key, '\xbc'.

[@focus678]

Can it use with Flux?

[@CgTopTips]

No, you need to use a specific workflow designed for Flux, and you can only input images generated with Flux into this workflow

[@汪贝贝-j6l]

我对模糊图像的使用效果不是很好，我不知道出了什么问题

[@CgTopTips]

你是自己创建的工作流程，还是下载并使用了已有的设置？

[@AntonyNguyenTriMedia]

Hi there, much appreciated your work, but I had a problem with the MiDaS Depth Map : Error occurred when executing MiDaS-DepthMapPreprocessor: [Errno 2] No such file or directory: 'C:\\Users\\USER\\Desktop\\ComfyUI\\NewSource\\ComfyUI_windows_portable\\ComfyUI\\custom_nodes\\comfyui_controlnet_aux\\ckpts\\lllyasviel\\Annotators\\.huggingface\\download\\dpt_hybrid-midas-501f0c75.pt.501f0c75b3bca7daec6b3682c5054c09b366765aef6fa3a09d03a5cb4b230853.incomplete' Can you please have a solution about this? Many thanks

[@CgTopTips]

According to the error message, you do not have the mentioned model on your computer. Either download this model and place it in the path specified in the error message, or use another Depth Preprocessor that you already have the model for

[@AntonyNguyenTriMedia]

@@CgTopTips Many thanks, I'll try another Depth Model. I also downloaded the file but not working. I will try another depth model as you suggested, but do you know any other Depth Model beside MiDaS? Thanks