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README.md
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instance_prompt: >-
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backgwa, solo, pale blue hair, cat ears, golden eyes, navy beret, white shirt,
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red ribbon, oversized sleeves, blue jacket
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license:
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---
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# Overview
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This project was conducted for research purposes to protect the copyright, creative style, training rights, and intellectual property held by the original artist of this character.
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Instead of using images directly created by the artist as training data, this LoRA was trained only on an AI-generated synthetic image dataset.
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Through this approach, the project explores a way to build a character LoRA without directly using the original character images or the artist's work as training data.
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- Redistribution of this LoRA by third parties is prohibited in principle. However, it may be permitted if the original creator is clearly credited and proper attribution is provided.
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## Trigger Word
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You can use the `BACKGWA` character by entering the trigger prompt below.
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This prompt includes the key visual features and default outfit elements required to generate the character.
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```text
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backgwa
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```
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## Usage
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---
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# Training
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This LoRA was trained without using any human-made artwork as training data.
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The dataset consists of
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These images were created specifically for this LoRA training process and were not collected from, derived from, or reused from artwork
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To prepare the initial image-generation prompts, the original character image was provided as
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Predefined prompts and instructions were used to guide the model in
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Using
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When suitable high-quality outputs were obtained, some of them were also used as additional references for further image generation.
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The generated images were then labeled using GPT-5.5.
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These labels describe the visible
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A total of
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The LoRA was trained on the SDXL-based [`LUMIERE-Q`](https://huggingface.co/BackGwa/LUMIERE-Q) model, with 10 repeats and 10 epochs
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|Parameter|Setting|
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|---|---|
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|Base Model|[`LUMIERE-Q`](https://huggingface.co/BackGwa/LUMIERE-Q)|
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|Dataset Size|`28 images`|
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|Epochs|`10`|
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|Repeats|`10`|
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|Resolution|`1024x1024`|
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instance_prompt: >-
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backgwa, solo, pale blue hair, cat ears, golden eyes, navy beret, white shirt,
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red ribbon, oversized sleeves, blue jacket
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license:
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- creativeml-openrail-m
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- mit
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---
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# Overview
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Character-LoRA is an SDXL-based character LoRA created to reproduce the `BACKGWA` character. This LoRA was trained on a copyright-conscious synthetic image dataset.
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This project was conducted for research purposes to protect the copyright, creative style, training rights, and intellectual property held by the original artist of this character.
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Instead of using images directly created by the artist as training data, this LoRA was trained only on an AI-generated synthetic image dataset.
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Through this approach, the project explores a way to build a character LoRA without directly using the original character images or the artist's work as training data.
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- Redistribution of this LoRA by third parties is prohibited in principle. However, it may be permitted if the original creator is clearly credited and proper attribution is provided.
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## Trigger Word
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Use the trigger word below to activate the `BACKGWA` character.
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You can add extra prompts for outfit, expression, pose, background, or composition as needed.
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```text
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backgwa
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```
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## Usage
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---
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# Training
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This LoRA was trained without using any human-made artwork as training data.
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The dataset consists of 48 synthetic images generated with GPT Image 2.
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These images were created specifically for this LoRA training process, and were not collected from, derived from, or reused from artwork created by human artists.
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To prepare the initial image-generation prompts, the original character image was provided as a reference image to the locally executed [`gemma-4-E4B-it`](https://huggingface.co/google/gemma-4-E4B-it) model.
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Predefined prompts and instructions were used to guide the model in generating text prompts capable of reconstructing the character from the provided reference image.
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Using these reconstructed prompts, synthetic character images were generated with GPT Image 2.
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The generated images were then separately labeled using GPT-5.5.
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These labels describe the visible visual features, outfit elements, composition, and other relevant details used during training.
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A total of 48 synthetic images were used for training.
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The LoRA was trained on the SDXL-based [`LUMIERE-Q`](https://huggingface.co/BackGwa/LUMIERE-Q) model at a resolution of `1024x1024`, with 10 repeats and 10 epochs.
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|Parameter|Setting|
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|Base Model|[`LUMIERE-Q`](https://huggingface.co/BackGwa/LUMIERE-Q)|
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|Dataset Size|`48 images`|
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|Epochs|`10`|
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|Repeats|`10`|
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|Resolution|`1024x1024`|
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