ComfyUI + LDSR Upscale, New King of Upscalers?

I recently discovered a new method for upscaling our images and com UI so in this video we're going to compare that to some of the traditional methods that are already in there and see which one looks the best I hope you find it useful as usual all the links you need will be down in the description let's get into it all right one thing real quick before I get to the workflow you really should install comfy UI manager if you don't have it already you got to make everything so much easier going forward I'll put a link to it in the description once you have it installed and you load one of my workflows you'll get into comfy UI and this is what you'll see and you'll see a red big red node let you know that you're missing something you'll close this right here you'll go to manager on the right and you'll install missing custom nodes it'll show you what you're missing this case it's canvas tab now click install once it's done it'll tell you restart comp UI and refresh your browser just do that and you're ready to go so a guy going by floaty tone on Reddit just released a new node called comfy UI floaty ldsr for upscaling and in his description he says here and I'll enlarge this for those unfamiliar with ldsr the term stands for Laten diffusion super resolution it's an old upscaling technique that still tends to get better results than most currently available up scalers while sacrificing speed and VM until now it was only usable independently as a script or inside a 1111 web UI and has been long requested feature in kyi's GitHub so I wanted to try it out and I wanted to compare it against some other upscaling methods that we use so I've got a pretty straightforward workflow here that we'll go through and we'll start on the left here's your checkpoint here's your empty latent image on I'm using I'm feeding the width and height into the latent image and I'll show you why over here in a second we got our positive and negative prompt I use RG3 to hang on to the seat if I want and we got a multiplier here this multiplier is going into the lighten up scale The Prompt I'm using is concept art dute City overgrown futuristic Neon Lights raining day and sunlight so um I'm going to run this and we'll go through each of these I have a couple on the end turned off for now cuz they take a while so the first one I just named default and this is what you get with nothing else at of to it and the second one is I just call it straight upscale I'm using this upscale method there's a few different to choose from but it's not this one's never been impressive cuz it's it's just it's just blowing up the picture and and you know trying to sharpen it stuff like that the third is the Laten up scale and the negative to this one is that it changes the picture a little and the lower you put this the less it'll change it but it'll it'll lead to artifacts like if I put it0 2 you'll see you'll see it just kind of comes out of a bloody mess we'll leave it on 0.5 for this and rerun it and so the the negative with this method is if if you want to go through and and do you know you want to keep I'm going to turn this off I'll turn this one off too for now you want to go through and you want to just do a whole bunch of iterations and just find something you like the negative to the latent is that it's going to constantly change your image like if you like this and you go to you go to render it with a latent it might change something you don't like or you may end up getting words I've had it this happen a lot you'll get words pop up down at the bottom that weren't in your original one that you set up so that's the the lighten you get good quality but that's the negative to it is that you may end up getting a completely not completely but you know parts of your picture will be completely different turn it back on so this new one I'm getting good results out of it we're going to rerun here so a couple negatives with this method is it takes a long time it takes my GPU and RTX 48 about 2 minutes and it uses up a lot of memory it's using about half of mine which be 8 gigs so I'm not sure what happens if you run that on a a video card with less memory than that if somebody tries it let me know towards the end here my GPU usage spiked up just a little bit as it finishes up here okay so that's done we're going to I'm going to bring these all into Photoshop or something and put them side by side so we can see them better the last upscaler we have and the one I use the most is the ultimate SD up skill I'm going to lock this seed in so it doesn't render everything and we'll run that one too and I set this one to four times because the ldsr ecale is is doing four times and I want a kind of fair [Music] comparison and that's why this is also four times the drawback to Ultimate SD upscale is that it is rendering out tiles to fill that space and these tiles are 512 x 512 12 and if you imagine a grid over this picture broken into tiles of 512 x 512 it's going to render each one of those and you'll get you'll get subtle changes in there but I kind of like that because sometimes you get more detail I don't know if you can tell right now but I've seen in the past where you know if there's little little pipes and gadgets and stuff it'll render more fine detail on those little grids but let's open this up in Photoshop and compare them all side by side okay I got them all laid out in Photoshop here and I'm zoomed in so this is the default straight upscale latent upscale ultimate SD upscale and the ldsr upscale and you can see how much I'm zoomed in on all these default this is what we started with a straight up scale is it's just taking the same thing blowing it up you know smoothing out the the pixels here so nothing's changed you got a lighten up scale and you'll see it's changed sometimes for the better we've got some extra trash and garbage and and some extra details in there the ultimate SD upscale again this is the one that renders out in tiles in my experience it doesn't usually change a whole lot it just adds more detail to items I don't know if I have a got a good example here maybe just the sign kind of looks like a hamburger here but yeah you can see see the results for yourself there and this is the new one and I really want to mainly compare these two together cuz this is the one I use all the time and the results are good the results are pretty good let's look around at another part of this picture let's just go right down the [Music] middle [Music] let's hide this thing and get it out of my way so I can look better yeah you'll see ultimate SD up skill added you know some stuff here which you know depending on what you're doing you might want you might not [Music] want that's honestly between these these two I don't know which one I'd prefer this is sharper in that spot let's look somewhere else let's just look at the city street here yeah it's it's pretty close the the thing is I just don't know if it would be worth the extra time it takes to render using this or not I'm honestly undecided I was hoping we'd get into this and and be like hey this is the way to go but I don't think that's going to be the case let's Zoom right in on this door here see what we [Music] see yeah I just don't I don't really have a preference I guess it depends on what you're working on I mean it's it's another tool we have which is appreciated but it just depends on what you're working on whether you'd prefer that over ultimate SD upscale yeah you know like right here this is sharper and this is sharper so yeah I don't know maybe maybe a wash so I'll stop there I just kind of wanted to show the results I got I'll share this workflow down below and the link to the the new upscaler and you can use it if you want to use it and if you get some awesome results let me know thank you for watching

Channel: House of Dim

Views: 12,238

Keywords: comfyui, stable diffusion, ai art, tutorial, animatediff, animation, ldsr, ldsr upscaler, ultimate sd upscaler, upscaler, upscalers, nodes, workflow

Id: GO5FJBKUlVI

Length: 9min 35sec (575 seconds)

Published: Fri Jan 05 2024