【SD Tutorials】How to Use Extras for Scaling up Images

Contents

1. Basic Usage
2. Upscalers
3. Face Restoration

Upscaling

You will go to the Extra page to scale up an image.

Basic Usage

Step 1: Navigate to the Extra page. Step 2: Upload an image to the image canvas. Step 3: Set the Scale by factor under the resize label. The new image will be this many times larger on each side. For example, a 200×400 image will become 800×1600 with a scale factor of 4. Step 4: Select Upscaler 1. A popular general-purpose AI upscaler is R-ESRGAN 4x+. Step 5: Press Generate.

Upscalers

Lanczos、Nearest：low ESRGAN、R-ESRGAN、SwinIR：high You can also install your own. Model Link:https://upscale.wiki/wiki/Model_Database Upscaler 2: This option lets you combine the results of two upscalers. The amount of blending is controlled by the Upscaler 2 Visibility slider. A higher value shows upscaler 2 more.

Face Restoration

During the upscaling procedure, it is possible to restore faces with the use of two available options: (1) GFPGAN, and (2) CodeFormer. By adjusting the visibility settings of either option, you can apply the necessary correction. As a general guideline, it is recommended to select the lowest possible value to avoid altering the image style unnecessarily.

About How to Use Text2img click here , and How to Use Image2img click here. Stable Diffusion Tutorial Guide click here.