Transforming Images: Create Stunning 4K Wallpapers in Minutes

Transforming Images: Create Stunning 4K Wallpapers in Minutes

Table of Contents

1. Introduction
2. Creating the Prompt
3. Resizing and Editing the Image
4. Adjusting the Black Bars
5. Rendering the Final Image
6. Manual Upscaling
7. Practicing with Another Image
8. Fixing Imperfections
9. Notes on Denoising Strength
10. Conclusion

Introduction

In this tutorial, I will guide You through the process of turning a base image into a customized wallpaper image. We will go step by step, starting from creating a prompt to achieving the final result. So, let's get started!

Creating the Prompt

Before we dive into the tutorial, don't forget to subscribe to our Channel for more valuable content. Now, let's open Stable Diffusion and select a prompt. For this tutorial, we will Create an image with a close-up fantasy-looking Spider-Man wearing a fantastic cyber helmet. We'll be using two Lora models for the background and the model itself. The settings are flexible, so you can adjust them to your liking. I recommend using a Height of 720 for easier image manipulation.

Resizing and Editing the Image

Once we have our prompt set up, we need to resize and edit the image. Select the image and send it to Image2Image. In the Image2Image tab, scroll down and click on the "Resize and Fill" option. Set the width and height to 1280x720. Then, click on the edit icon and point the mouse pointer to the middle of the image. Scroll the mouse six times to zoom out the image. Repeat this process one more time to ensure the image is in its original position.

Adjusting the Black Bars

To remove the black bars on the sides of the image, we need to make some adjustments in InPaint. Copy the image to InPaint, and you will Notice the black bars on the right and left sides. Enlarge the brush size by pressing Ctrl and scrolling the mouse. Brush the black bars on both sides to make them slightly smaller. Once done, press "R" on the keyboard to return to the initial view. Set the sampling method to DPM++2M Karas and select the "Fill" option for masked content. You can also adjust the denoising strength between 0.6 and 0.9 for optimal results.

Rendering the Final Image

Now it's time to generate the final image. Delete the original prompt and replace it with a simpler prompt. For example, you can use "Street of Cyberpunk City" as the prompt. Generate the image, and you will see the transformation. To achieve the best results, you may need to experiment with the denoising strength parameter. In this case, a value of 0.7 worked well. However, different images may require different settings within the 0.6 to 0.9 range.

Manual Upscaling

After the rendering process, we need to do a manual upscale. Send the image to Image2Image and set the denoising strength to 0.2-0.25. Enable the control net tab and select "SD15_Tile" in the model section. Scroll down to the script section and choose "Ultimate SD upscale". Set the target size to "scale from image size" and select an upscaler of your choice. Finally, generate the image to get a high-quality wallpaper-sized result.

Practicing with Another Image

Let's practice the process with another image. Resize and edit the image as we did before. Drag and drop the guidelines to fit the image size, and click in the middle of the image to zoom in. Repeat the process twice to ensure the correct image position. In InPaint, brush the edges of the image to remove the black bars. Set the masked content to "Fill" and adjust the parameters according to your preference. Replace the original prompt and generate the image.

Fixing Imperfections

Sometimes, there may be imperfections in the generated image. To fix them, brush the areas that require adjustments in InPaint. Generate the image again to see the improvements. If needed, you can fine-tune the results by making additional adjustments in InPaint.

Notes on Denoising Strength

Each image may require different denoising strength settings. It's crucial to experiment with different values within the 0.6 to 0.9 range to achieve the best results. The recommended starting point is around 0.7, but feel free to explore and find the most suitable parameter for your specific image.

Conclusion

Congratulations! You have successfully learned how to transform a base image into a customized wallpaper image using Stable Diffusion. Remember to play around with the settings and experiment with different images to achieve the desired results. Keep practicing and exploring new possibilities with this powerful tool.