AI Image Generation
Discover the world of AI images — from DALL·E to Midjourney and Stable Diffusion. Learn to write prompts that create exactly what you envision.
Overview of Key Tools
Each tool has its strengths. The choice depends on your use case, budget, and desired level of control.
DALL·E 3
OpenAI
Integrated in ChatGPT. Strong at following prompts precisely and rendering text in images.
Midjourney
Midjourney Inc.
Best aesthetic quality. Works via Discord or web. Ideal for artistic and marketing visuals.
Stable Diffusion
Stability AI
Open-source model you can run locally. Maximum control and customizability.
Adobe Firefly
Adobe
Trained on licensed content. Safe for commercial use, integrated in Photoshop.
Anatomy of an Image Prompt
A good image prompt has several layers. The more details you add, the more precise the result.
Specify the style
Photorealistic, illustration, watercolor, 3D render, pixel art...
Describe composition
Close-up, wide shot, bird’s eye view, symmetrical...
Describe lighting
Golden hour, studio light, neon glow, dramatic shadows...
Add mood
Calm, energetic, mysterious, nostalgic, futuristic...
Weak vs. Strong Prompt
Draw a cat.
Photorealistic portrait of a ginger cat sitting on a windowsill on a rainy day. Soft natural light from the window, bokeh background, detailed fur, Canon EOS R5, 85mm f/1.4, cinematic color grading.
💡 Tip
Add technical parameters like lens type, lighting, or film look — they significantly improve output quality.
Negative Prompts
Tell AI what you don’t want in the image. Negative prompts significantly improve quality, especially in Stable Diffusion and Midjourney.
Prompt: Professional product photo of a white flower pot on a marble table, studio lighting
Negative: blurry, low quality, watermark, text, distorted, extra objects, busy background
Practical Tips
Iterate
Start simple and gradually add details. Each variant teaches you something new.
Combine styles
“Watercolor in Studio Ghibli style” or “3D render in Pixar style.”
Use references
Upload an existing image as an inspiration reference (image-to-image).
Test aspect ratios
16:9 for banners, 1:1 for social media, 9:16 for stories.
Try it yourself
Open ChatGPT (DALL·E) or Midjourney and try this prompt:
Minimalist poster for a Japanese-style cafe. Natural colors, subtle paper texture, matcha latte cup in the foreground, misty bamboo forest in the background. Style: graphic design, flat illustration, 3:4 aspect ratio.
Key Terms
Image prompt
A text description used by AI to generate an image.
Negative prompt
What you don’t want in the image — e.g. “no text, no watermark”.
Seed
A number determining the initial noise. Same seed + prompt = same result.
Aspect ratio
The proportions of the image, e.g. 16:9, 1:1, 9:16.
Upscaling
Increasing the resolution of a generated image without quality loss.
Inpainting
Editing a specific part of an image while keeping the rest intact.
Lesson Summary
- DALL·E, Midjourney, Stable Diffusion, and Adobe Firefly — each tool has its advantages and ideal use cases.
- The more detailed the prompt (style, lighting, composition, mood), the better the result.
- Use negative prompts, iterate, and experiment with different styles.