Stable Diffusionで画像や動画生成を4倍以上高速化する方法(LCM-Lora)

Yuta Akiyama introduces a method to dramatically speed up the generation of images and videos using a technique called 'LCM Roller' in the context of a software called 'Stability Diffusion.' This method is beneficial for users without a GPU in their PCs. Akiyama guides viewers on how to download the LCM roller, which is also known as 'lcm,' and explains its role in generating images with fewer sampling steps and a CFG scale, thus reducing the time taken for image generation. He also details the process of downloading specific files from the 'Hugging Face' platform, selecting the appropriate roller based on the model's base, and installing it for use in the software. Akiyama concludes the first part by demonstrating how to use the roller within the software and adjusting settings like sampling steps and CFG scale to optimize image generation speed.

In the second part, Akiyama compares the speed and quality of image generation with and without the use of the LCM roller. He uses 'DreamShaper' as a checkpoint and inputs a prompt to generate images. Akiyama adjusts the roller weight and negative prompt before generating 10 images, which takes approximately 2 minutes and 10 seconds with the LCM roller, highlighting a significant speed improvement. He then demonstrates the generation process without the LCM roller, changing the sampling steps to 30 and the CFG scale to 7, which results in a much longer generation time of 6 minutes and 36 seconds for the same number of images. Akiyama concludes by encouraging viewers who are stressed by the time-consuming image generation process to try using the LCM roller and invites feedback or questions in the comments section. He also asks for likes and subscriptions if the video was helpful and looks forward to meeting viewers in the next video.