Learning Reference-Guided Exposure Correction with Hybrid Illumination Characteristics

• URL: http://arxiv.org/abs/2605.26729v1
• Date: Tue, 26 May 2026 09:05:47 GMT
• Title: Learning Reference-Guided Exposure Correction with Hybrid Illumination Characteristics
• Abstract summary: HICNet is a reference-guided exposure correction framework.<n>A lightweight, content-agnostic encoder distills each image into a compact illumination embedding.<n>HICNet attains better accuracy on public benchmarks and generalizes well to entirely unseen scenes.
• Score: 15.936813871243777
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present HICNet, a reference-guided exposure correction framework. A lightweight, content-agnostic encoder distills each image into a compact illumination embedding capturing regional brightness, edge contrast, and higher-order luminance moments. The embedding difference between a source and its reference drives a multi-scale modulation network that combines FiLM-based global adjustment with Photometric Channel Rebalancing for fine-grained, illumination-aware spectral gating, producing exposure-matched outputs while faithfully preserving scene details. A cross-batch contrastive loss orders the illumination manifold, bolstering robustness to diverse lighting conditions. Trained without ground truth or intrinsic decomposition, HICNet attains better accuracy on public benchmarks and generalizes well to entirely unseen scenes.

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