Upload 2718533/3054865/README.md with huggingface_hub

2718533/3054865/README.md

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+---
+license: other
+tags:
+- anima
+- fp32
+- hdr
+- krea
+- qwen image
+- style
+- vae
+---
+
+# HDR VAE (Anima, Krea2, QWEN Image) - BF16 - 3054865
+
+**Model Type**: VAE
+
+**Base Model**: Qwen
+
+**Trigger Words**: None
+
+**Tags**: anima, fp32, hdr, krea, qwen image, style, vae
+
+## Gallery
+
+<table>
+  <tr>
+    <td><video src="https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/b870d5d2-4351-4e23-a401-2b67eb83c3ea/original=true/134391104.mp4" width="200" controls muted autoplay loop></video></td>
+    <td><video src="https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/9d517ba8-adcd-459d-8f44-49655ce0cbd6/original=true/134391251.mp4" width="200" controls muted autoplay loop></video></td>
+  </tr>
+</table>
+
+## Description
+
+Qwen Image VAE
+==============
+
+* Full FP32 Training of Decoder
+* Works in ComfyUI
+
+Feel free to to suggest onsite support, to civitai staff. I don't think they have any agreements like with FLUX
+
+---
+
+Overview
+--------
+
+This model is a fine-tuned variant of the base Qwen Image VAE, modified to emphasize high-frequency detail preservation and expanded color representation, following an HDR-style reconstruction objective.
+
+The evaluation compares the base and HDR-tuned models using perceptual, structural, distributional, and photometric metrics over identical input data.
+
+---
+
+Evaluation Summary
+------------------
+
+### Perceptual Fidelity (LPIPS)
+
+* Base: 0.0177
+* HDR: 0.0786
+
+The HDR model exhibits a significant increase in perceptual distance, indicating reduced strict identity reconstruction under deep feature similarity metrics and a shift toward detail-enhancing reconstruction behavior.
+
+---
+
+### Structural Energy (Gradient Magnitude)
+
+* Ground Truth: 404.02 (both models)
+* Base Reconstruction: 313.46
+* HDR Reconstruction: 687.97
+
+The base model demonstrates strong low-pass behavior with reduced high-frequency content. In contrast, the HDR model exhibits high-frequency amplification, exceeding the structural energy of the original inputs.
+
+---
+
+### Color Distribution Support
+
+* Ground Truth: 33150.61 (both models)
+* Base Reconstruction: 35004.49
+* HDR Reconstruction: 40133.37
+
+The HDR model produces a substantially expanded color support space, indicating increased chromatic dispersion and reduced quantization collapse.
+
+---
+
+### Photometric Stability
+
+Brightness Bias
+
+* Base: 0.000351
+* HDR: 0.0000098
+
+Contrast Gain
+
+* Base: 0.9984
+* HDR: 0.99999
+
+Both models preserve global photometric consistency, with the HDR variant showing near-perfect affine stability.
+
+---
+
+### Channel Drift
+
+* Red Shift:
+
+  + Base: +0.0116
+  + HDR: +0.0104
+* Green Shift:
+
+  + Base: -0.0606
+  + HDR: -0.1856
+* Blue Shift:
+
+  + Base: +0.0187
+  + HDR: +0.0219
+
+The HDR model introduces a significantly stronger negative bias in the green channel, while maintaining comparable red and blue stability.
+
+---
+
+Interpretation
+--------------
+
+The base Qwen VAE behaves as a **contractive perceptual projection operator**, prioritizing smooth reconstructions and suppression of high-frequency components.
+
+The HDR-tuned variant transitions into a **detail-amplifying reconstruction operator**, characterized by:
+
+* Increased high-frequency energy
+* Expanded color manifold coverage
+* Higher perceptual divergence under LPIPS
+* Preserved global photometric invariance
+
+This represents a functional shift from a smoothing autoencoder regime toward a high-frequency preserving (HDR-like) reconstruction regime.
+
+---
+
+Author: [Felldude](https://civitai.com/user/Felldude)
+
+Model: [CivitAI Model Page](https://civitai.com/models/2718533?modelVersionId=3054865)
+
+Archive: [CivArchive Page](https://civarchive.com/models/2718533?modelVersionId=3054865)
+
+<!-- Version: 20260725_upload -->