1) grey scale difference methods
灰度差法
3) Image subtracting operation
图像灰度差值法
4) gray differential statistics
灰度差分统计法
5) gray level difference
灰度差
1.
The matching process firstly evolved a template selection discipline based on gray level difference segmentation to reduce the sensibility to image noise and illumination changes.
通过基于灰度差分割的模板选择原则降低亮度差和噪声的影响,同时利用线性插值获得面向角度一维灰度投影,最大化模板中的图像边缘信息,从而加快模板匹配过程。
2.
Thus the small gray level difference can be converted to the sha.
设计了在计算机上运行的金相伪彩色系统,使输入的金相灰度图像中各相间微弱的灰度差转化为明显的色调差,显著提高了金相组织鉴别的衬度。
6) gray variance
灰度方差
1.
The segmentation method of fingerprint image based on gray variance runs quickly and can be programmed easily.
灰度方差法是一种简单快速的指纹图像分割算法,本文给出一种自适应阈值的灰度方差分割法。
2.
On the basis of the fingerprint image segmentation algorithm based on the gray variance,this paper pre-sents an improved segmentation algorithm for the low quality fingerprint images which has much low gray degrees pix-els.
在基于灰度方差的指纹分割算法的基础上,本文针对低灰度等级占多数的低质量指纹图像,提出了一种改进的指纹图像分割算法。
补充资料：差差
1.犹参差。不齐貌。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条