使用StableDiffusion生成精美絕倫的超清大圖，試試我的三重放大法。SD放大升高档-從模糊到8K超大圖，StableDiffusion重要技巧，讓你的AI繪畫作品達到最高畫質，驚艷程度拉滿！

The speaker, Ouyang, welcomes viewers to a tutorial on creating high-quality upscaled images using SD, a technique also known as 'high score'. Ouyang demonstrates how to produce stunning 4K and 8K images by showcasing a character model resembling an assassin or ninja. The model used is 'REV, enemy', which is praised for its balanced performance. The tutorial proceeds with a walkthrough of the cloud desktop and server setup, where Ouyang has previously generated images. The video also recommends a Chinese website, 'xtime', for accessing the latest model versions and participating in community activities. The focus is on selecting a checkpoint model and understanding the model's performance through testing. The tutorial then delves into the image generation process, emphasizing the importance of high-resolution base images for better upscaling results using basic high-score repair and later processing techniques.

Ouyang continues the tutorial by discussing methods to enhance image resolution and detail. The video suggests starting with higher base resolutions to achieve better upscaling results. It mentions the importance of powerful graphics cards to handle larger image sizes and the use of a special script that divides the image into smaller sections for rendering to overcome hardware limitations. Ouyang introduces a plugin for 'super upscaling' that addresses issues like seam lines and rendering errors that can occur with block-based upscaling. The tutorial also covers the installation of this plugin and its configuration options, emphasizing the need to avoid facial repair and to keep the redraw amplitude moderate to prevent individual block artifacts. The goal is to achieve a high-resolution image with minimal loss of detail, even in complex areas like eyes and accessories.

The third part of the tutorial focuses on refining the details of the upscaled images. Ouyang introduces the use of a 'Ctrl' plugin for adding more details and enhancing the image's artistic quality. The video demonstrates how to use the 'resemble' and 'tail' models within the plugin to enrich the image with finer details such as hair strands and accessories. It also covers the process of局部重绘 (local redrawing) to address specific areas like eyes and earrings that may require more definition. The tutorial emphasizes the importance of adjusting parameters and prompt words to achieve the desired level of detail and artistic effect. The result is a more vivid and detailed image that closely resembles the original subject with enhanced visual appeal.

In the final segment, Ouyang wraps up the tutorial by discussing the final touches to the upscaled images. The video covers the process of making minor adjustments to details such as armor, wristbands, and gloves to perfect the image. It also demonstrates the upscaling of a realistic image using a different model from the recommended website, highlighting the need to switch models according to the image style. The tutorial emphasizes the importance of starting with a high-resolution base image for the best upscaling results and the use of a 'us' model for a more realistic look. The video concludes with a summary of the 'three-tier upscaling method' and encourages viewers to support the channel and explore more AI-related content. All resources, including website links and plugin addresses, are promised to be shared in the comment section for further reference.