【誰でもわかる】ネガティブプロンプトについて徹底解説します！

creativaier
28 May 202304:40

TLDRThe video script discusses the importance of negative prompts in AI image generation, emphasizing their role in avoiding undesirable outcomes. It categorizes common negative prompts into six groups: image quality issues, description problems, anatomical issues, area-related problems, excessive or lacking details, and text information. The script provides examples of each category, such as 'blurry' to prevent poor image quality and 'bad proportions' to avoid anatomical inaccuracies. It encourages viewers to master negative prompts for ideal AI-generated images and invites them to subscribe for more AI and web-related helpful content, as well as a service offering unlimited questions to a professional engineer for those learning programming and prompts.

Takeaways

  • 📖 Negative prompts are instructions that tell the AI what not to do during image generation, improving the creation of desired AI images.
  • 📈 Understanding and utilizing negative prompts is crucial for achieving high-quality AI-generated images.
  • 📷 To prevent blurry or out-of-focus photos, use negative prompts like 'blurry', indicating the AI to avoid such qualities.
  • 💾 Avoiding low-quality images can be achieved with prompts like 'low quality', 'worst quality', and 'JPEG artifacts', specifically targeting common issues.
  • 👨‍💻 Negative prompts help in preventing inaccuracies in anatomy and proportions, like 'bad anatomy', 'bad proportions', and 'gross proportions'.
  • 🧠 To counteract distorted or unusual shapes in figures, prompts like 'reformed', 'disfigured fingers', and 'mutated hands' are used.
  • 📸 Preventing repetitive or poorly drawn facial features can be managed with prompts like 'cloned faces' and 'poorly drawn faces'.
  • 📚 Avoiding issues with missing or extra limbs is possible through specific prompts such as 'missing arms' or 'extra fingers'.
  • 💦 To prevent depictions of unhealthy or dehydrated states, prompts like 'dehydration' and 'morbid' indicate the AI to avoid such imagery.
  • 📃 Negative prompts related to textual information help ensure that unnecessary text does not appear in images, maintaining visual clarity.

Q & A

  • What is the main topic discussed in the transcript?

    -The main topic discussed in the transcript is the concept of negative prompts in the context of AI image generation, emphasizing their importance in creating ideal AI images.

  • What are negative prompts in AI image generation?

    -Negative prompts are instructions or guidelines provided to AI systems to avoid certain undesirable outcomes in the generated images, such as poor image quality, incorrect proportions, or extraneous elements.

  • How can negative prompts help improve the quality of AI-generated images?

    -Negative prompts help improve the quality of AI-generated images by specifying what to avoid, such as blurry images, low-quality artifacts, incorrect proportions, and other issues that could lead to an undesirable final product.

  • What are some examples of negative prompts related to image quality?

    -Examples of negative prompts related to image quality include avoiding 'blurry', 'blurred', 'low quality', 'rose worst work quality', and 'JPEG artifacts' to prevent poor or degraded images.

  • How do negative prompts address issues with anatomy and proportions in AI-generated images?

    -Negative prompts that address anatomy and proportions include terms like 'bad anatomy', 'bad proportions', 'gross proportions', 'long neck', and others that guide the AI to create images with accurate and natural body parts and proportions.

  • What is the purpose of negative prompts related to the depiction of body parts?

    -The purpose of negative prompts related to body parts is to prevent the AI from generating images with unrealistic or exaggerated features, such as 'deformed', 'fused fingers', 'malformed limbs', ensuring a more natural and accurate representation.

  • How do negative prompts help in avoiding issues with the depiction of faces in AI images?

    -Negative prompts help avoid facial issues by including terms like 'cloned face', 'paralyzed face', 'droning hands', which prevent the AI from generating images with duplicated or improperly drawn faces and hands.

  • What are some negative prompts that address issues with the inclusion or exclusion of certain elements in an image?

    -Negative prompts for inclusion or exclusion of elements include 'missing arms', 'missing legs', 'extra arms', 'extra fingers', 'extra legs', 'extra limbs', which guide the AI to ensure the correct number and presence of body parts in the image.

  • How do negative prompts related to the state of the subjects in AI images work?

    -Negative prompts related to the state of subjects, such as 'dehydrated' and 'morbid', guide the AI to avoid depicting subjects in unhealthy or extreme conditions, ensuring a more lifelike and realistic representation.

  • What is the role of negative prompts in preventing the inclusion of unnecessary text or information in AI images?

    -Negative prompts related to text and information, such as 'no text', 'no watermarks', guide the AI to avoid including unnecessary or distracting elements like text overlays or watermarks, focusing on the visual content instead.

  • How can viewers of the video enhance their understanding of negative prompts?

    -Viewers can enhance their understanding of negative prompts by referring to the provided list in the video description, which covers basic but essential negative prompts for creating ideal AI images.

  • What additional resources are available for those interested in learning more about AI and prompts?

    -The video channel offers a variety of AI-related information and helpful web content. Additionally, there is a service that allows users to ask questions to active engineers specializing in programming and prompt engineering.

Outlines

00:00

🎨 Understanding Negative Prompts in AI Image Generation

This paragraph introduces the concept of negative prompts in the context of AI image generation using Stable Diffusion. It emphasizes the importance of avoiding certain instructions to create ideal AI images and encourages viewers to master the use of negative prompts. The content outlines a list of common negative prompts categorized into six groups: image quality issues, description issues, anatomical problems, shape-related issues, excessive or lacking details, and text information concerns. The explanation provides examples of negative prompts for each category, such as avoiding blurry images, low-quality or JPEG artifacts, incorrect proportions, and abnormal shapes, as well as strategies to prevent issues like missing limbs or extra limbs in the generated images.

Mindmap

Keywords

💡Negative Prompts

Negative prompts are instructions used in AI image generation to specify what should be avoided. They are crucial for creating ideal AI images by preventing undesirable elements from appearing. In the video, various negative prompts are categorized and explained to help viewers understand how to effectively use them in image generation processes.

💡Image Quality

Image quality refers to the clarity and resolution of the generated images. In the context of the video, avoiding terms like 'blurry', 'blurred', and 'JPEG artifacts' ensures that the generated images are of high quality, without the degradation that can occur with certain file formats or due to motion blur.

💡Proportions

Proportions relate to the accurate representation of the size and relationship of different parts within an image. The video emphasizes avoiding 'bad anatomy' and 'bad proportions' to prevent unrealistic depictions, such as disproportionately large or small body parts, which can result in a cartoonish or deformed appearance.

💡Anatomy

Anatomy in the video refers to the correct representation of the human body's structure. The script mentions avoiding terms like 'long neck' to ensure that body parts are not depicted with incorrect proportions. Accurate anatomy is essential for creating realistic and believable AI-generated images.

💡Clowned Face

Clowned face is a term used to describe an undesirable outcome where a face looks overly exaggerated or comical. The video advises against this by using negative prompts to prevent the AI from generating faces with unrealistic or distorted features, ensuring a more natural and serious depiction.

💡Cropped and Out of Frame

Cropped and out of frame refer to issues where parts of the image are cut off or not fully visible within the frame. The video provides negative prompts to avoid such issues, ensuring that the entire subject is properly presented and nothing important is left out of the generated image.

💡Missing or Extra Limbs

Missing or extra limbs are common issues in AI-generated images that can occur when the AI misinterprets the prompt. The video emphasizes using negative prompts like 'missing arms' or 'extra arms' to correct these errors and ensure that the generated images have the correct number of limbs.

💡Dehydrated

Dehydrated, as mentioned in the video, refers to an undesirable state where the skin appears excessively dry or wrinkled. By avoiding terms that suggest dehydration, the video ensures that AI-generated images portray subjects with healthy and realistic skin textures.

💡Mutated

Mutated is a term used to describe an abnormal or distorted appearance that can result from incorrect AI interpretation. The video advises against using prompts that could lead to mutated features, ensuring that the generated images maintain a natural and expected appearance.

💡Text Information

Text information in the context of the video refers to the presence of unnecessary text in the generated images. Negative prompts are used to avoid the inclusion of text, ensuring that the focus remains on the visual elements and preventing any distractions or inaccuracies that text might cause.

💡AI Image Generation

AI image generation is the process of creating visual content using artificial intelligence. The video discusses the importance of using negative prompts within this process to guide the AI towards generating images that are of high quality, accurate, and free from common errors. It is a key aspect of ensuring that the final images meet the desired specifications and aesthetic standards.

Highlights

Negative prompts are instructions to avoid certain things when generating images with stable diffusion.

To create an ideal AI image, specifying negative prompts is also important.

Negative prompts can be categorized into six groups: image quality issues, description issues, domain issues, few or many, good or bad states, and text information.

Blurry, blurred, and pinbashed photos are terms to avoid low-quality images.

Low quality, rose worst work quality are specifications to prevent low-quality images.

JPEG artifacts are associated with the degradation of image quality due to the file saving format.

Bad anatomy, bad proportions, gross proportions are descriptions to prevent deformed characters.

Long neck is a description related to maintaining correct body proportions.

Reformed, refigured, fused fingers, malformed, rimmed hands are terms to avoid abnormal shapes in depictions.

Cloned face, paraded lone face, pre-armed hands are terms to prevent duplicated or improperly drawn faces and hands.

Cropped, out of frame are terms to avoid partial or entirely missing faces in the image.

Missing arms, missing legs are specifications to ensure complete depictions of limbs.

Extra arms, extra fingers, extra legs, extra limbs, extra finners are terms to avoid excessive depictions.

Dehydrated is a term to avoid descriptions of extremely dry skin.

Morbid is a term to prevent depictions of unhealthy, pale appearances.

Mutation, mutated are specifications to avoid abnormal forms in the image.

Text information negative prompts are used to prevent unnecessary text from appearing in the image.