一种拼接缝消除方法

图像镶嵌技术在图像处理中是一种非常重要的处理方法,他使几幅数字图像拼成一幅完整的范围更大的图像。一般情况下,进行图像拼接时,在拼接的边界上,不可避免地会产生拼接缝。接缝的形成是由于被镶嵌的两幅图像在拼接部位的灰度值差异较大,因而在视觉上有一条拼接线。而在实际的成像过程中,这种细微差别很难避免。针对拼接后的图像存在拼接缝的问题,本文在比较了传统常用的拼接缝消除的方法后,通过分析接缝形成的原因,提出一种更简洁、实用的方法,并经过实验验证,效果较好,并且简单快捷。

A Method of Seam-line Elimination

Image mosaicking is one of the most important methods in image processing.Several digital images are mosaicked and made up a whole panoramic view by mosaicking.In general,when two images are mosaicked,there inevitably exists a seam-line on the mosaicking boundary.The difference of the gray levels of mosaicking position between the two mosaicked images is so big that there exists a seam-line visually.However,the small difference is avoidless during the practical imaging.According to the seam-line caused by mosaicking,the focus of paper lies in the elimination of gray seam-line in mosaicked image.Firstly,the analysis of the advantages and disadvantages of existing methods of seam-line elimination is performed.Then the improved method for "overlapping-image smoothing with weight" is presented and tested after the forming reason of the seam-line is analyzed.Through the experiment,it indicates that the method proposed above is effective,simple,easy to realize.