除了使用 Retinex 理论之外,如何补偿虹膜图像中的照明变化?
我想对虹膜图像进行有效的照明补偿,并且我希望该补偿基于颜色,即使用颜色而不是纹理进行照明补偿。我纠正了图像的各种机械误差,但我想要一个简单的算法来补偿基于颜色的照明。有什么想法吗?
I want to make an effective illumination compensation on iris images and I want this compensation to be based on color i.e. illumination compensation using color rather than texture. I corrected my images for various mechanical errors but I want a simple algorithm to compensate the illumination based on color. Any ideas?
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论
评论(2)
尝试减去同一图像的低通副本?
Try subtracting a low-pass copy of the same image?
您感兴趣的是白平衡(即实现颜色恒定)。最简单的算法之一是灰色世界算法,我会首先尝试该算法,因为它非常容易实现(尽管它不是很精确)。
您可能还想尝试一些基于 Retinex 的算法。如果是这样,请访问此网站:http://www.fer.unizg.hr/ipg /resources/color_constancy/
它包含几种基于 Retinex 的颜色恒常性算法的 C++ 实现。
What you are interested in is white balancing (i.e. achieving color constancy). One of the simplest algorithms is the Gray-World algorithm and I would try that one first because it's very easy to implement (even though it's not very precise).
You also might want to try some Retinex based algorithms. If so, visit this site: http://www.fer.unizg.hr/ipg/resources/color_constancy/
It contains C++ implementations of several Retinex-based color constancy algorithms.