Update README.md

README.md

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+```yaml
 ---
-license: apache-2.0
+license: other
+language:
+  - en
+library_name: diffusers
+pipeline_tag: text-to-image
+tags:
+  - flux
+  - flux2
+  - vae
+  - hdr
+  - ultrahd
+  - cinematic
+  - high-detail
+  - image-enhancement
+  - texture-recovery
+  - sharpness-enhancement
+  - color-enhancement
+  - microcontrast
+  - raw
+  - generative-ai
+  - stable-diffusion
+  - diffusion
+  - latent-space
+  - photorealistic
+  - neural-compression
+  - reconstruction
+  - fp16
+  - inference
+  - image-generation
+  - visual-quality
+  - machine-learning
+  - ai-art
+  - flux-compatible
+base_model:
+  - FLUX.2
+  - FLUX.2 Klein
+  - Ernie
+model_type: Variational Autoencoder (VAE)
+datasets:
+  - internal-evaluation-suite
+metrics:
+  - lpips
+  - gradient-energy
+  - unique-colors
+  - brightness-bias
+  - contrast-gain
+  - rgb-channel-shift
+inference: true
 ---
+
+# FLUX.2 UltraHD RAW VAE
+
+## Overview
+
+FLUX.2 UltraHD RAW VAE is a high-fidelity enhancement-focused Variational Autoencoder engineered for the FLUX.2 ecosystem. Unlike reconstruction-pure VAEs optimized exclusively for perceptual similarity, UltraHD RAW VAE is tuned for cinematic rendering, HDR enhancement, sharper edge response, texture recovery, and richer gradient reproduction.
+
+The model is fully compatible with all FLUX.2 variants including:
+
+- FLUX.2
+- FLUX.2 Klein
+- FLUX.2 Ernie
+
+---
+
+# Scientific Assessment
+
+## Design Objective
+
+The primary design goal of UltraHD RAW VAE is not strict latent reconstruction accuracy, but perceptual enhancement quality.
+
+Key optimization targets include:
+
+- Increased texture fidelity
+- Enhanced microcontrast
+- Expanded color richness
+- Sharper edge gradients
+- Improved HDR-style rendering
+- Stable luminance preservation
+- Dynamic range consistency
+
+---
+
+# Quick Assessment
+
+## Observed Visual Characteristics
+
+### Color Enhancement
+
+UltraHD RAW VAE increases effective color richness through:
+
+- Higher unique color utilization
+- Expanded HDR gradient smoothness
+- Slight saturation enhancement
+- Preserved luminance integrity
+- Preserved dynamic range behavior
+
+### Detail Recovery
+
+The VAE demonstrates:
+
+- Stronger edge energy
+- Sharper fine detail reconstruction
+- Increased perceived texture depth
+- Enhanced microcontrast behavior
+
+---
+
+# Training Notes
+
+Although the visual enhancement effect may appear subtler compared to previous enhancement VAEs, the underlying optimization process was substantially more difficult.
+
+More than double-digit failed training attempts were required to achieve:
+
+- Stable HDR enhancement
+- Low LPIPS divergence
+- Contrast preservation
+- Brightness neutrality
+- Balanced channel behavior
+
+Achieving an LPIPS value near the already extremely low FLUX.2 baseline proved exceptionally challenging.
+
+---
+
+# Direct Metric Comparison
+
+## Evaluation Setup
+
+- 150-image benchmark comparison
+- Tested directly against Base FLUX.2 VAE
+- Metrics computed across identical latent reconstruction conditions
+
+---
+
+# LPIPS (Perceptual Similarity)
+
+| Model | LPIPS |
+|---|---|
+| FLUX Base | 0.0073 |
+| UltraHD RAW VAE | 0.0303 |
+
+### Difference
+
+- 4.1× higher than FLUX Base
+
+### Interpretation
+
+The model intentionally trades strict reconstruction fidelity for perceptual enhancement quality.
+
+Despite the increase, both values remain significantly below typical human perceptual thresholds.
+
+---
+
+# Gradient Energy
+
+| Model | Gradient Energy |
+|---|---|
+| FLUX Base | 405.5 |
+| UltraHD RAW VAE | 633.5 |
+
+### Difference
+
+- +56% increase
+
+### Interpretation
+
+Substantially sharper detail rendering and stronger edge definition.
+
+---
+
+# Unique Colors
+
+| Model | Unique Colors |
+|---|---|
+| FLUX Base | 37,369 |
+| UltraHD RAW VAE | 39,184 |
+
+### Difference
+
+- +4.9% increase
+
+### Interpretation
+
+Improved color richness and smoother HDR tonal transitions.
+
+---
+
+# Brightness Bias
+
+| Model | Brightness Bias |
+|---|---|
+| FLUX Base | 0.0047 |
+| UltraHD RAW VAE | 0.0030 |
+
+### Interpretation
+
+Excellent luminance preservation with slightly improved brightness neutrality.
+
+---
+
+# Contrast Gain
+
+| Model | Contrast Gain |
+|---|---|
+| FLUX Base | 0.984 |
+| UltraHD RAW VAE | 0.983 |
+
+### Interpretation
+
+Near-identical dynamic range and HDR tone retention.
+
+---
+
+# RGB Channel Shift Analysis
+
+## Red Shift
+
+| Model | Red Shift |
+|---|---|
+| FLUX Base | +0.0048 |
+| UltraHD RAW VAE | +0.0188 |
+
+Interpretation:
+
+- Slightly warmer red response
+- Improved cinematic warmth
+
+---
+
+## Green Shift
+
+| Model | Green Shift |
+|---|---|
+| FLUX Base | -0.0037 |
+| UltraHD RAW VAE | -0.0104 |
+
+Interpretation:
+
+- Minor reduction in green balance
+- Helps reduce sterile tonal appearance
+
+---
+
+## Blue Shift
+
+| Model | Blue Shift |
+|---|---|
+| FLUX Base | +0.0181 |
+| UltraHD RAW VAE | +0.0434 |
+
+Interpretation:
+
+- Stronger blue/cyan HDR emphasis
+- Enhanced atmospheric rendering
+
+---
+
+# Summary
+
+FLUX.2 UltraHD RAW VAE is an enhancement-oriented VAE optimized for:
+
+- HDR rendering
+- Texture recovery
+- Cinematic sharpness
+- Richer gradients
+- Enhanced microcontrast
+- Improved perceptual detail
+
+Compared to the base FLUX VAE, UltraHD RAW VAE produces:
+
+- Significantly stronger edge detail
+- Improved color richness
+- Better texture clarity
+- Enhanced HDR-style rendering
+- Stable brightness preservation
+- Preserved contrast behavior
+
+The model is best suited for users prioritizing perceptual image quality and cinematic rendering over strict pixel-perfect reconstruction fidelity.
+
+---
+
+# Recommended Usage
+
+Recommended for:
+
+- Photorealistic generations
+- Cinematic compositions
+- HDR workflows
+- Texture-heavy scenes
+- High-detail portrait rendering
+- Atmospheric lighting
+- Stylized realism
+
+Less suitable for:
+
+- Pixel-faithful reconstruction tasks
+- Scientific image preservation
+- Reconstruction benchmarking applications
+
+---
+
+# Compatibility
+
+Compatible with:
+
+- FLUX.2
+- FLUX.2 Klein
+- Ernie
+
+Precision support:
+
+- FP16
+- BF16
+- FP32
+
+---
+
+# Disclaimer
+
+This VAE intentionally modifies reconstruction characteristics to improve perceptual aesthetics. Metric increases in LPIPS are expected and are part of the enhancement-oriented design philosophy.
+```