/start-1-3.en

description: "Lesson command"
chapter: "courses/aiagent/lesson03-core/module01-banner"
prerequisites: ["start-1-1"]
duration: "~30 min"
level: "beginner"
tags: ["image", "nanobanana", "gemini", "editing"]
nonInteractiveMode: deferred

🎓 Lesson 1-3: nanobanana Image Editing

📍 What You'll Do

Welcome to **Lesson 1-3: nanobanana Image Editing**!

| Item | Details | |------|---------| | Goal | Generate images from text and edit existing images using the nanobanana skill | | Duration | ~30 min | | Skills Used | nanobanana (Gemini Image Generation API) | | Prerequisites | Lesson 1-1 completed, Gemini API key configured | | Course Page | Refer to [Module 1: Banner & Image Generation](https://ai-agent.camp/en/course/module-1) in parallel |

**Session flow:** 1. Generate images from text 2. Generate images of specific scenes 3. Edit existing images (optional)

By the end of this session, generated and edited images will be saved in outputs.

> **💡 Hint**: If the AI response stops midway, type "please continue" or "it stopped" to resume. This is a Cursor behavior, not a malfunction.

---

🎯 Readiness Check

Let's verify that everything is ready.

**AskQuestion configuration:**

{
  "title": "🎯 Pre-Session Check",
  "questions": [{
    "id": "readiness",
    "prompt": "Are you ready?",
    "options": [
      {"id": "ready", "label": "Ready! Let's start"},
      {"id": "check_prereq", "label": "Check prerequisites"},
      {"id": "view_html", "label": "View the course page first"},
      {"id": "different_lesson", "label": "Go to a different lesson"}
    ]
  }]
}

(ready → Go to Step 1) (check_prereq → Run prerequisite check) (view_html → Show course page path) (different_lesson → Show module list)

---

🚀 Step 1: Generate Images from Text

Use AskUserQuestion (AskQuestion) to choose "Continue / Just review examples / Skip."

**AskQuestion configuration example:**

{
  "title": "🚀 Step 1: Generate Images from Text",
  "questions": [{
    "id": "step_action",
    "prompt": "What would you like to do with this step?",
    "options": [
      {"id": "practice", "label": "Continue"},
      {"id": "review", "label": "Just review examples"},
      {"id": "skip", "label": "Skip"}
    ]
  }]
}

**After selection (example)**: Input:

Use nanobanana to generate the following image:
- Style: Flat design
- Theme: Teamwork
- Purpose: Business presentation
Output: ~/ai-agent-camp/output/nanobanana-teamwork.png

**Expected result**: A flat-design image themed around teamwork is generated.

---

🚀 Step 2: Generate Images of Specific Scenes

Use AskUserQuestion (AskQuestion) to choose "Continue / Just review examples / Skip."

**AskQuestion configuration example:**

{
  "title": "🚀 Step 2: Generate Images of Specific Scenes",
  "questions": [{
    "id": "step_action",
    "prompt": "What would you like to do with this step?",
    "options": [
      {"id": "practice", "label": "Continue"},
      {"id": "review", "label": "Just review examples"},
      {"id": "skip", "label": "Skip"}
    ]
  }]
}

**After selection (example)**: Input:

Generate a "modern office scene" image with nanobanana.
Conditions:
- Flat design, minimal
- Bright color tones
- Include a desk, indoor plants, and windows
Output: ~/ai-agent-camp/output/nanobanana-office.png

**Expected result**: An office image meeting the specified conditions is generated.

---

🚀 Step 3: Edit Existing Images

Use AskUserQuestion (AskQuestion) to choose "Continue / Just review examples / Skip."

**AskQuestion configuration example:**

{
  "title": "🚀 Step 3: Edit Existing Images",
  "questions": [{
    "id": "step_action",
    "prompt": "What would you like to do with this step?",
    "options": [
      {"id": "practice", "label": "Continue"},
      {"id": "review", "label": "Just review examples"},
      {"id": "skip", "label": "Skip"}
    ]
  }]
}

**After selection (example)**: Input:

Edit the office image generated earlier (nanobanana-office.png):
- Change the background to a sunset sky
- Add warm lighting effects
Output: ~/ai-agent-camp/output/nanobanana-office-sunset.png

**Expected result**: An image based on the original is generated with the background changed to a sunset sky.

---

🚀 Step 4: Generate Logo-Style Images and Icons

Create business-ready images using the following prompts:

Use AskUserQuestion (AskQuestion) to choose "Continue / Just review examples / Skip."

**AskQuestion configuration example:**

{
  "title": "🚀 Step 4: Generate Logo-Style Images and Icons",
  "questions": [{
    "id": "step_action",
    "prompt": "What would you like to do with this step?",
    "options": [
      {"id": "practice", "label": "Continue"},
      {"id": "review", "label": "Just review examples"},
      {"id": "skip", "label": "Skip"}
    ]
  }]
}

**After selection (example)**: Input:

Generate the following 2 images with nanobanana:

1. A coffee shop logo-style image
   - Simple, flat design
   - Coffee cup silhouette
   - Output: ~/ai-agent-camp/output/logo-coffee.png

2. An icon representing an AI agent
   - Tech feel, futuristic
   - Blue and white base colors
   - Output: ~/ai-agent-camp/output/icon-ai.png

**Expected result**: A logo-style image and an icon are generated.

---

🚀 Step 5: Compare Different Styles

Use AskUserQuestion (AskQuestion) to choose "Continue / Just review examples / Skip."

**AskQuestion configuration example:**

{
  "title": "🚀 Step 5: Compare Different Styles",
  "questions": [{
    "id": "step_action",
    "prompt": "What would you like to do with this step?",
    "options": [
      {"id": "practice", "label": "Continue"},
      {"id": "review", "label": "Just review examples"},
      {"id": "skip", "label": "Skip"}
    ]
  }]
}

**After selection (example)**: Input:

Generate images on the theme "Growing Business" in 3 different styles:

1. Flat design (simple, minimal)
2. 3D illustrati