arXiv:2505.09986cs.CVeess.IV2025-05被引 1

针对水下图像的光照与色彩偏移,提出高效压缩新框架。

High Quality Underwater Image Compression with Adaptive Color Correction

  • 自适应预测光照衰减与全局光信息,校正水下色偏。
  • 动态加权多尺度频率分量,提升压缩质量。
  • 引入色调调整损失,优化各通道颜色平衡。

随着对海洋世界探索的深入,水下图像已成为人类与海洋环境交互的关键媒介,推动了其高效传输与存储的研究。然而,现有水下图像压缩算法未能充分考虑水体折射与散射对光波的影响,不仅增加训练复杂度,还导致压缩性能不佳。为此,我们提出高保真水下图像压缩框架HQUIC,以应对水下图像特有的光照条件和色彩偏移,实现更优压缩效果。HQUIC首先引入自适应光照与色调校正(ALTC)模块,自适应预测图像的衰减系数与全局光照信息,有效缓解水下图像中光照与色调变化带来的问题。其次,通过动态加权多尺度频率分量,优先保留对失真质量关键的信息,舍弃冗余细节。此外,引入色调调整损失,使模型更好平衡不同颜色通道间的差异。在多个水下数据集上的综合评估表明,HQUIC优于当前最先进的压缩方法,验证了其有效性。

原文摘要 · Abstract (English)

With the increasing exploration and exploitation of the underwater world, underwater images have become a critical medium for human interaction with marine environments, driving extensive research into their efficient transmission and storage. However, contemporary underwater image compression algorithms fail to adequately address the impact of water refraction and scattering on light waves, which not only elevate training complexity but also result in suboptimal compression performance. To tackle this limitation, we propose High Quality Underwater Image Compression (HQUIC), a novel framework designed to handle the unique illumination conditions and color shifts inherent in underwater images, thereby achieving superior compression performance. HQUIC first incorporates an Adaptive Lighting and Tone Correction (ALTC) module to adaptively predict the attenuation coefficients and global light information of images, effectively alleviating issues stemming from variations in illumination and tone across underwater images. Secondly, it dynamically weights multi-scale frequency components, prioritizing information critical to distortion quality while discarding redundant details. Furthermore, we introduce a tone adjustment loss to enable the model to better balance discrepancies among different color channels. Comprehensive evaluations on diverse underwater datasets validate that HQUIC outperforms state-of-the-art compression methods, demonstrating its effectiveness.

图像压缩水下图像色彩校正深度学习

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