How to Change Aspect Ratio in Midjourney | Final Aspect Ratio Explained | AI Tutorial

Woollyfern
21 Dec 202305:20

TLDRThis tutorial explores the aspect ratio parameter in Midjourney, a tool for generating images with AI. It explains how to set a custom aspect ratio to break away from default square images and discusses why the output might not always match the requested ratio. The video covers common aspect ratios, how to use the --AR parameter in prompts, and the constraints of different Midjourney models. It also touches on how aspect ratios work with zooming out and variations, and the impact of upscaling on the final image ratio.

Takeaways

  • 🖼️ The aspect ratio describes the proportions of an image, expressed as width:height.
  • 🔢 Common aspect ratios like 3:2 or 2:3 are used in photography to produce landscape or portrait images.
  • 🎨 Midjourney uses a default aspect ratio of 1:1, resulting in square images.
  • 💡 To change the aspect ratio in Midjourney, include the --ar parameter followed by the desired ratio in your prompt.
  • 🚫 Midjourney does not accept decimal values for aspect ratios; only whole numbers are allowed.
  • 🔄 You can adjust the aspect ratio during a zoom out, roll, or variation if remix mode is enabled.
  • 📏 Each Midjourney model has a fixed range of aspect ratios and image resolution constraints.
  • 📈 For example, Midjourney v5.2 can't produce an image with an aspect ratio of 1:20; it will default to 9:128.
  • 🖱️ V5 models allow for more aspect ratio flexibility compared to V4 models.
  • ⏱️ In V5, the initial grid already contains upscaled images, making the first upscale near-instant.
  • ✂️ If the final aspect ratio isn't what you requested, it can often be corrected by minor cropping.

Q & A

  • What is an aspect ratio?

    -An aspect ratio is a way to describe the proportions of an image. It represents the relationship between the width and the height of the image, written as width:height.

  • How does the aspect ratio affect the orientation of an image?

    -Landscape orientation aspect ratios have the first number larger than the second, while portrait orientation aspect ratios have the first number smaller than the second.

  • What is Midjourney's default aspect ratio?

    -Midjourney's default aspect ratio is 1:1, which means square images.

  • How can you change the aspect ratio in Midjourney?

    -You can change the aspect ratio by including the --ar parameter in your prompt, followed by the desired aspect ratio value.

  • Can you use decimals in the aspect ratio parameter in Midjourney?

    -No, aspect ratios must contain whole numbers, no decimals.

  • What happens when you ask for an aspect ratio beyond Midjourney's constraints?

    -Midjourney will deliver the closest aspect ratio that satisfies its constraints, which may not be exactly what you asked for.

  • How does the aspect ratio affect the image resolution in Midjourney?

    -Each Midjourney model has fixed ranges of aspect ratios and image resolution constraints that affect the final aspect ratio of the images.

  • What is the maximum aspect ratio you can request in Midjourney V5 models?

    -In Midjourney V5 models, you can go as tall as about 1:14 or as wide as about 14:1.

  • How does upscaling impact the aspect ratio in Midjourney V5 models?

    -In V5 models, the initial grid already contains upscaled images, so clicking the U button for the first time is essentially just cropping to the desired image, making V5 upscales near-instant.

  • Can you change the aspect ratio during a roll or variation in Midjourney?

    -Yes, if remix mode is enabled in your settings, you can change the aspect ratio during a roll or during a variation.

  • How can you find out more about aspect ratio constraints across all Midjourney models?

    -For more detailed information on aspect ratio constraints across all Midjourney models, you can check the link provided in the video description.

Outlines

00:00

🖼️ Understanding Aspect Ratio in Mid Journey

This paragraph introduces the concept of aspect ratio in image creation, specifically within the context of Mid Journey, a tool for generating images. It explains that aspect ratio is a way to describe the proportions of an image, expressed as width:height. The paragraph provides examples of common aspect ratios and how they relate to landscape or portrait orientations. It also discusses Mid Journey's default aspect ratio of 1:1, which results in square images. The speaker then explains how to customize the aspect ratio by including the --AR parameter in the prompt, with examples given for setting a 2:3 aspect ratio. The paragraph concludes by mentioning that while users can request any aspect ratio, Mid Journey models have constraints that may result in images not matching the exact requested aspect ratio due to model limitations.

05:01

🔄 Aspect Ratio Constraints and Upscaling in Mid Journey

This paragraph delves into the technical constraints of aspect ratios in Mid Journey, particularly focusing on the limitations of different models. It mentions that requesting an extreme aspect ratio, such as 1:20, will result in an image with a modified aspect ratio due to model constraints. The paragraph also highlights that the side length of any image or grid in Mid Journey is a multiple of 32 pixels, which is a constraint of the platform. It explains the difference in aspect ratio capabilities between V5 and V4 models, with V5 allowing for a wider range of aspect ratios. The paragraph also touches on the impact of upscaling on aspect ratio, noting that in V5 models, the initial grid already contains upscaled images, which changes the upscaling process compared to older models. The speaker encourages viewers to explore more about aspect ratios across different Mid Journey models through a provided link and invites feedback on the video's helpfulness.

Mindmap

Keywords

Aspect Ratio

Aspect Ratio is a term used to describe the proportional relationship between the width and the height of an image or video. It is expressed as two numbers separated by a colon, for example, '16:9'. In the context of the video, aspect ratio is crucial as it determines whether an image will appear in landscape (wider than it is tall) or portrait (taller than it is wide) orientation. The video explains that aspect ratios like 3:2 and 2:3 are commonly used in photography, and Midjourney's default aspect ratio is 1:1, which produces square images.

Midjourney

Midjourney refers to an AI tool that generates images based on textual prompts. The video discusses how to manipulate the aspect ratio of images produced by Midjourney. It is highlighted that Midjourney has different models, each with its constraints regarding aspect ratios and image resolutions, which can affect the final output of the images.

Parameter

In the context of the video, a 'parameter' is an additional instruction that can be included in a prompt to give Midjourney customized instructions on how to generate an image. For example, the '--AR' parameter is used to specify a custom aspect ratio. Parameters are added at the end of the prompt and start with two dashes followed by the parameter name.

Landscape Orientation

Landscape orientation describes images that are wider than they are tall. In the video, it is mentioned that aspect ratios in landscape orientation will always have the first number larger than the second, such as 3:2 or 4:3. This is contrasted with portrait orientation, which is the opposite.

Portrait Orientation

Portrait orientation refers to images that are taller than they are wide. The video explains that for aspect ratios in portrait orientation, the first number is smaller than the second, such as 2:3 or 9:16. This is used to create images that are taller than they are wide, like those often used for profile pictures or vertical banners.

Pixel Dimensions

Pixel dimensions are the actual measurements of an image in pixels, expressed as width x height. The video uses pixel dimensions to illustrate how aspect ratios work, stating that an image with an aspect ratio of 1:2 could have pixel dimensions of 100x200 or 1200x2400, both maintaining the 1:2 ratio.

Zoom Out

Zooming out in Midjourney is a process where the AI generates a new image with content added in the directions required to achieve a new aspect ratio. The video explains that this can be done by changing the aspect ratio parameter during a zoom out, which allows for more advanced image manipulation.

Remix Mode

Remix mode is a setting in Midjourney that, when enabled, allows users to change the aspect ratio during a roll or a variation of an image. This feature provides more flexibility in image generation, as explained in the video.

Upscaling

Upscaling in the context of the video refers to the process of increasing the resolution of an image. In Midjourney, upscaling can impact the aspect ratio of the final image. The video notes that in V5 models, the initial grid already contains upscaled images, and clicking the 'U' button for the first time simply involves cropping to the desired image, making the process nearly instantaneous.

Constraints

Constraints in Midjourney refer to the limitations of the AI models regarding aspect ratios and image resolutions. The video explains that each Midjourney model has a fixed range of aspect ratios it can produce, and if a requested aspect ratio is beyond these limits, the model will choose the closest aspect ratio that satisfies its constraints.

Highlights

Explore Midjourney's aspect ratio parameter.

Learn how to set a custom aspect ratio to avoid square images.

Understand why Midjourney might not deliver the exact aspect ratio requested.

Aspect ratio is the relationship between an image's width and height.

Common aspect ratios and their orientation (landscape or portrait).

Midjourney's default aspect ratio is 1:1, resulting in square images.

Use the --AR parameter to change the aspect ratio in your prompt.

Parameters are added at the end of the prompt with a double dash.

Aspect ratios must contain whole numbers, no decimals.

Advanced use allows changing the aspect ratio during a zoom out.

Remix mode enables aspect ratio changes during a roll or variation.

Each Midjourney model has a fixed range of aspect ratios and image resolution constraints.

V5.2 model's aspect ratio constraints and how they differ from requested ratios.

Grid dimensions and upscaled images are multiples of 32 pixels.

V5 models allow more stretch in aspect ratios compared to V4 models.

Midjourney selects the closest aspect ratio that fits its constraints.

V5 models have near-instant upscales due to initial grid containing upscaled images.

Older models require waiting for the upscaler algorithm to complete.

Aspect ratio constraints are not always communicated by Midjourney versions.

Slight cropping can correct minor aspect ratio differences.

Additional information on aspect ratios across Midjourney models available in the video description.