[lora training] add caption dropout and aspect ratio buckets#14089
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linoytsaban wants to merge 5 commits into
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[lora training] add caption dropout and aspect ratio buckets#14089linoytsaban wants to merge 5 commits into
linoytsaban wants to merge 5 commits into
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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YWYYQwMQo8A2HPBFD1qYoi
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Resize to cover the bucket then crop, instead of resizing to the exact bucket dimensions (which distorted images and made the crop a no-op). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YWYYQwMQo8A2HPBFD1qYoi
Apply the bucket-aware resize/crop to prior-preservation class images too (so they share the instance image's bucket), and add --bucket_no_upscale to pad images smaller than their bucket instead of upscaling them. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YWYYQwMQo8A2HPBFD1qYoi
Add qwen-image and flux2-klein example tests covering --aspect_ratio_buckets (+ --bucket_no_upscale) and --caption_dropout. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YWYYQwMQo8A2HPBFD1qYoi
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krea comparison with and without buckets and dropout |
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Adds aspect ratio bucket support to krea 2 and qwen image (aligned with bucketing that already exists flux 2) + bucketing fix and caption dropout support.
--caption_dropout): randomly replace an instance caption with""so that fraction trains unconditionally (improves CFG). Added to krea2, qwen-image, flux2-klein.--bucket_no_upscale: pad images smaller than their bucket instead of upscaling them.