AI image generation lets anyone be a designer. Just type a description and get an illustration, cover, or product image in seconds. But to get images that look great and match what you have in mind, you need to know a few prompt-writing principles.
The structure of an image prompt
A good prompt includes these elements:
- Main subject: who or what, and what they are doing
- Setting: where and when
- Style: such as photorealistic, cartoon, 3D, watercolor, or minimalist
- Light and color: such as soft morning light, pastel tones
- Camera angle and aspect ratio: such as high angle, landscape 16:9
Example: "An orange cat reading a book by a coffee shop window, morning, soft light, watercolor illustration style, pastel tones, landscape 16:9"
Tools you can use
- ChatGPT creates images from prompts in Thai and lets you refine them through conversation
- Canva AI Image Generator creates images you can lay out right away
- Gemini can also generate images
Tips for better images
- State what you don't want, such as "no text in the image"
- Use mood words like warm, bright, or mysterious
- Generate several images and pick one, then ask for targeted edits
- Leave empty space for a logo or text
What you can use the images for
Things to watch out for
Avoid creating images that imitate real people or copyrighted characters, and check small details like fingers or text in the image before using it.
Ready-to-use prompts
- Article cover: "a cozy home office with plants and a laptop, morning light, flat illustration, soft blue and white palette, wide 16:9, empty space on the right"
- Product shot: "a bottle of herbal shampoo on a wet stone, green leaves, studio lighting, photorealistic, square 1:1"
- Storybook: "a little elephant and a bird sharing a mango under a big tree, children's book illustration, watercolor"
Adjust the words in each part to fit your project, and generate several rounds to pick the best image.
Frequently asked questions
Why is text in images often garbled?
Many AI tools still can't draw letters accurately. The best approach is to generate the image without text and add the text yourself in Canva.
Can I sell the images I create?
It depends on the terms of the tool you use. Read the commercial use terms for your plan.
Can I keep the same character face across multiple images?
Yes, by describing the character the same way every time, or by using the tool's image reference feature.
Summary
Creating images with AI isn't hard. Use the formula of subject, setting, style, light, and camera angle, then keep refining. For ready-made image prompts, download our Free Prompts.
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