EnragedAntelope-ComfyUI_EasyRegion/TESTING_GUIDE.md

Regional Conditioning - Systematic Testing Guide

Date: November 23, 2025 Current Status: All regions appearing, bird too small - needs calibration User Workflow: 1344x768, Flux model, 3 regions (car, giraffe, bird)

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Current User-Tested Values (Baseline)

Based on your testing, these values produce all three regions:

Background: 1.0
Region 1 (car, left):      0.7
Region 2 (giraffe, center): 0.8
Region 3 (bird, upper-right): 1.5

Results:

• ✅ Car appears (good size)
• ✅ Giraffe appears (good size)
• ⚠️ Bird appears but TINY (needs improvement)

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4 Systematic Test Scenarios

Scenario 1: Boost Bird Strength (Fix tiny bird)

Hypothesis: Bird is too small because strength 1.5 isn't high enough for the smallest region

Settings:

Background: 1.0
Region 1 (car):     0.7
Region 2 (giraffe): 0.8
Region 3 (bird):    2.5  ← INCREASED from 1.5

Expected Result: Bird becomes larger and more prominent

What to observe:

• Is bird now visible and appropriately sized?
• Does it maintain correct position (upper-right)?
• Any artifacts or over-saturation?
• Do car and giraffe still look good?

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Scenario 2: Lower Background for More Regional Dominance

Hypothesis: Background at 1.0 might be competing with regions, keeping them subtle

Settings:

Background: 0.6  ← DECREASED from 1.0
Region 1 (car):     0.7
Region 2 (giraffe): 0.8
Region 3 (bird):    2.5

Expected Result: All regions become more prominent, bird especially

What to observe:

• Are all regions more vivid/clear?
• Does background scene context (city street at night) still visible?
• Does lowering background help bird without needing to boost its strength as high?

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Scenario 3: Balanced Mid-Range Strengths

Hypothesis: Keep all regions in similar strength range for balanced composition

Settings:

Background: 0.8
Region 1 (car):     1.0  ← INCREASED from 0.7
Region 2 (giraffe): 1.2  ← INCREASED from 0.8
Region 3 (bird):    1.8  ← INCREASED from 1.5

Expected Result: All regions at moderate, balanced strengths

What to observe:

• Do all regions appear with similar prominence?
• Is bird now appropriately sized?
• Better overall composition balance?
• Any regions overpowering others?

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Scenario 4: Aggressive Bird Emphasis (If bird still tiny)

Hypothesis: Smallest region might need much higher strength due to limited pixel area

Settings:

Background: 0.5  ← Very low to minimize interference
Region 1 (car):     0.7
Region 2 (giraffe): 0.8
Region 3 (bird):    4.0  ← VERY HIGH to compensate for small area

Expected Result: Bird becomes prominent despite small region size

What to observe:

• Is bird finally appropriately sized?
• Any artifacts at strength 4.0?
• Does very low background (0.5) make scene less cohesive?
• Are car and giraffe still good?

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Prompt Improvements for Size Control

Current Prompts (from your workflow):

Background: "photo of empty city street at night, high quality"
Region 1:   "red sports car"
Region 2:   "closeup full body giraffe wearing sunglasses"
Region 3:   "blue bird flying"

Issue Analysis

Region 3 (bird) is too small because:

1. ✅ Attention masking is working (bird appears in correct location)
2. ✅ Region box is reasonably sized (378x256 px = 97,728 pixels)
3. ❌ Prompt lacks size/scale keywords
4. ❌ "flying" might imply distant/small bird in sky

Region 2 (giraffe) works well because:

• Has "closeup full body" keywords that enforce scale
• Larger region area (384x704 = 270,336 pixels)
• Higher strength (0.8 vs bird's 1.5... wait, bird is higher but still tiny!)

Recommended Prompt Tweaks

Option A: Add Size/Scale Keywords

Region 3: "large blue bird flying, closeup view, prominent"

Why: "large", "closeup", "prominent" tell model to make bird bigger

Option B: Change Action/Context

Region 3: "blue parrot perched prominently, closeup, full body"

Why: "perched" removes distant-flight implication, "parrot" is inherently larger than generic "bird"

Option C: Extreme Emphasis

Region 3: "giant blue bird flying close to camera, large wingspan, prominent in frame"

Why: Multiple size keywords stack to force larger generation

Option D: Specific Bird Species (Size Control)

Region 3: "blue macaw flying, closeup full body view, large wingspan"

Why: "macaw" implies large parrot species, "full body" + "closeup" enforce scale

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Recommended Testing Order

Test 1: Quick Fix (Prompt Only)

1. Keep current strengths (bg=1.0, r1=0.7, r2=0.8, r3=1.5)
2. Change Region 3 prompt to: "large blue bird flying close to camera, closeup view, prominent"
3. Run generation

If bird still tiny → Test 2

Test 2: Strength Boost (Scenario 1)

1. Keep new prompt from Test 1
2. Increase bird strength: 1.5 → 2.5
3. Run generation

If bird good but overall balance off → Test 3

Test 3: Balanced Adjustment (Scenario 3)

1. Keep new prompt
2. Try balanced strengths: bg=0.8, r1=1.0, r2=1.2, r3=1.8
3. Run generation

If still issues → Test 4

Test 4: Aggressive Fix (Scenario 4)

1. Keep new prompt with maximum size keywords
2. Try aggressive settings: bg=0.5, r3=4.0
3. Run generation

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Additional Prompt Engineering Tips

For ALL Regions (Not Placement-Related)

Size/Scale Keywords:

• closeup / close-up view / close to camera
• full body / full figure
• large / giant / prominent
• detailed / highly detailed

Viewing Distance:

• closeup shot = close, large
• medium shot = moderate distance
• distant view = far, small
• extreme closeup = very close, fills frame

For Small Objects (like your bird):

• Add species that's larger (macaw > sparrow)
• Add "prominent" or "dominant"
• Add "in foreground" vs "in background"
• Add "large wingspan" or size-specific details

For Backgrounds:

• Keep general scene description
• Avoid specific objects (let regions handle that)
• Include lighting/atmosphere: "at night", "foggy", "sunset"
• Include quality keywords: "high quality", "photorealistic"

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Current Hypothesis

Based on your image, the bird is tiny likely because:

1. Prompt issue (most likely):

   • "blue bird flying" lacks size keywords
   • "flying" implies distant/sky context
   • Need: "large blue bird" or "closeup blue macaw"

2. Strength too low (less likely):

   • Your 1.5 is higher than car (0.7) and giraffe (0.8)
   • But might need 2.0-2.5 for smallest region

3. Region size (unlikely):

   • 378x256 is reasonable size
   • Giraffe region isn't that much bigger

Recommendation: Start with Test 1 (prompt change only), then adjust strength if needed.

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What to Document After Each Test

Please record for each test:

• Strength values used
• Prompts used
• Execution time
• Results:
  • Car appearance (good/bad/missing)
  • Giraffe appearance (good/bad/missing)
  • Bird appearance (good/bad/missing, SIZE!)
  • Overall composition quality
  • Any artifacts or issues

This will help us find the optimal configuration!