Image Generation — Midjourney, DALL-E, Stable Diffusion

লেসন ১৬ / ৪৬

🎨 Image Prompt Anatomy

[Subject] + [Setting] + [Style] + [Camera] + [Lighting]
+ [Mood] + [Details] + [Aspect ratio]

Example:
"A young Bangladeshi woman in traditional saree,
standing on a rickshaw-filled Dhaka street,
documentary photography style,
35mm lens, shallow depth of field,
golden hour sunlight,
vibrant and nostalgic mood,
detailed textile patterns, rain-soaked ground
--ar 16:9 --v 6"

🖼️ Midjourney Parameter ⭐

Paramউদ্দেশ্য
--ar 16:9Aspect ratio
--v 6Version
--style rawLess stylized
--s 250Stylize (0-1000)
--chaos 50Variation (0-100)
--seed 12345Reproducibility
--nijiAnime style
--tileSeamless pattern
--no textExclude element

🎭 Style Keyword

  • Photography: 35mm, portrait, macro, aerial, cinematic
  • Art: oil painting, watercolor, pencil sketch, ukiyo-e, digital art
  • 3D: octane render, Pixar style, unreal engine, low poly
  • Retro: 1980s, vintage, polaroid, sepia
  • Illustration: flat design, isometric, children's book

💡 Lighting Keyword

  • Golden hour, blue hour
  • Soft natural light
  • Dramatic rim lighting
  • Studio lighting, three-point
  • Moody chiaroscuro
  • Neon cyberpunk glow
  • Volumetric god rays

👨‍🎨 Artist Reference

"...in the style of [Artist name]"

Photography: Annie Leibovitz, Ansel Adams, Steve McCurry
Painting:    Van Gogh, Monet, Hokusai
Digital:     Greg Rutkowski, Artgerm, Ross Tran
Animation:   Studio Ghibli, Pixar, Disney

📐 Aspect Ratio ব্যবহার

  • 1:1 — Instagram post
  • 9:16 — Instagram/TikTok story
  • 16:9 — YouTube thumbnail, banner
  • 4:5 — Portrait photo
  • 2:3 — Book cover
  • 3:1 — LinkedIn banner

🔧 Advanced Technique

Image Reference (Midjourney)

[image URL] A woman in red dress
--iw 1.5 (image weight)

// Existing image-এর style/subject reuse

Style Reference

--sref [image URL] --sw 100
// Specific style copy

Character Reference (--cref)

--cref [image URL] --cw 100
// Same character maintain across scenes

Multi-prompt Weight

"bright city::2 rainy night::1"
// "bright city" 2x emphasis

🖌️ DALL-E 3 (ChatGPT-এ)

  • Natural language — paragraph-style prompt
  • Text render ভালো (sign, poster)
  • ChatGPT expands prompt automatically
  • Inpainting: "edit just the sky, keep rest"

🌊 Stable Diffusion (open source)

Positive + Negative prompt

Positive:
  beautiful landscape, mountain, lake, masterpiece,
  8k, detailed, sharp focus

Negative:
  blurry, low quality, distorted, extra limbs,
  watermark, signature, ugly

ComfyUI Workflow

  • Node-based visual editor
  • LoRA — fine-tuned style/character
  • ControlNet — pose, depth, edge control
  • Upscaler — 4K upscale
  • Inpaint/outpaint

🎯 Use Case Example

Product Shot

"Minimalist product photography of a silver wireless
headphones on a white marble surface, soft studio
lighting from the left, subtle shadow, professional
e-commerce style, 4K, sharp focus --ar 1:1"

Social Media Post

"Instagram-worthy flat lay of healthy breakfast:
avocado toast, berries, coffee, on a wooden table,
top-down view, natural morning light, warm tones
--ar 1:1 --style raw"

Logo Concept

"Minimalist vector logo for a tech startup named Nexus,
abstract connected nodes forming an N shape,
blue gradient, clean sans-serif typography,
white background, corporate identity
--ar 1:1 --style raw --v 6"

❌ Common Mistake

  • Vague prompt ("beautiful image")
  • Conflicting style (oil painting + photorealistic)
  • Too many subjects (confusing)
  • Negative prompt missing
  • Aspect ratio mismatch platform-এর সাথে

🏆 Power Tips ⭐

  • ৪টা variant generate → best pick → upscale
  • Prompt library বানান (category-wise)
  • Seed save করে variation explore
  • Hands/faces problematic → re-roll বা inpaint
  • Reference image weight experiment
  • Commercial use-এ license check

🔐 Copyright Concern

  • "In the style of living artist" — ethical concern
  • Trademark/logo generate avoid
  • Celebrity likeness legal risk
  • Adobe Firefly — commercially safe training data