【グラボ不要で無料】画像生成AIで作るオリジナルキャラ立ち絵制作方法！（商用利用可能）

The video script introduces a free software that enables even those who can't draw to create stand-up pictures. The speaker demonstrates the improved quality of their stand-up pictures, which can now blink and move their mouths. They explain that the basic image was created using AI, with facial expressions adjusted using illustration software. The tutorial will focus on creating original characters with these features using 'SeaArt,' a site for image generation that supports free and commercial use. The speaker also provides a QR code for registration and explains the stamina system used by the site.

The script details the process of creating a stand-up picture using 'SeaArt.' It explains how to search for a model called 'KayWaii,' which is suitable for generating high-quality illustrations of girls for commercial use. The speaker guides the audience through setting up the image generation, including the number of images, mode, and size. They also discuss the importance of using the correct prompts for the desired image outcome and demonstrate how to refine the image by adjusting the prompts and using variations to achieve specific facial expressions and details like long black hair and a pink kimono with floral patterns.

This section of the script describes how to enhance the stand-up picture with features like lip-syncing and blinking using different image variations. The speaker explains the technique of using a variation screen to create expressions that a single model cannot produce, such as an open mouth for lip-syncing. They also discuss the process of creating images with half-open and closed eyes for blinking effects. The script touches on the use of LoRA settings to create specific characters like Reimu with ease and cautions about the potential legal issues with some LoRAs created without permission. The tutorial concludes with the creation of a PSD portrait file using a tool called Fire Alpaca, which involves loading the base image, deleting the background, and adding the difference images to the layers.

The script provides a step-by-step guide on animating the stand-up picture by creating folders for different mouth and eye expressions within a PSD file. It explains how to use the lasso selection tool to select and copy parts of the image, such as the mouth, and paste them into designated folders. The process includes naming the images for clarity and using the eyedropper tool to fill in the eyes with an appropriate skin color. The speaker also describes how to create a body folder and manage the visibility of different images to simulate mouth movements. The tutorial concludes with instructions on saving the file as a PSD and setting up the character in Movie Maker 4, including configuring lip-syncing and blinking animations.