摘要
针对单张数字航空影像不均匀光照现象的成因 ,深入研究了马斯克匀光技术在数字航空影像匀光中的应用 ,并针对数字航空影像提出了相应的匀光处理的具体流程和实现方法。实验表明该方法可以克服数学模型法的不足 ,具有较强的适用性 ,对于消除数字航空影像的不均匀光照现象能够取得满意的效果 ,从而可以有效地解决单张数字航空影像的色彩平衡问题。
The uneven illumination of aerial images will cause color or luminance difference in an image frame. The difference will further affect the production quality of digital aerial images and the further applications of them. This paper analyses the causes of the uneven illumination of aerial images and characters of them, and deeply studies the application of the MASK dodging in the aerial images. Then based on the MASK dodging principle, this paper presents the processing flow and the corresponding processing method aiming to remove the uneven illumination of the digital aerial images. Finally the experiment is given, which shows that the method presented by this paper can be applied in many cases and avoid the disadvantages of methods based on the mathematical model. The experiment also shows that the method can achieve a satisfied effect and remove the uneven illumination for digital aerial images effectively.
出处
《中国图象图形学报（A辑）》
CSCD
北大核心
2004年第6期744-748,J001,共6页
Journal of Image and Graphics
基金
国家自然科学基金 ( 4 0 2 0 10 44 )
武汉大学测绘遥感信息工程国家重点实验室开放基金 ( ( 0 1) 0 10 2 )
