gray level image 灰度图象 ; 灰阶影像
image gray-level histogram 图像的灰度直方图
gray-level image 灰度图像
arbitrary gray level image [计] 任意灰度级图像
gray-level image morphology 灰度图象形态学
gray level image processing 灰度图像处理
gray-level image watermarking 灰度图像水印
mixed gray level image matching 混合图像灰度匹配
The experiment results show that the system can realize infrared image gray level transformation, suppress background and upgrade target in a certain extent.
实验结果表明，该系统能很好地实现红外图形灰度变换，并在一定程度上抑制了背景，提升了目标。
A method of embedding a color digital watermark into a gray level image is proposed.
本文提出一种将彩色数字水印嵌入到灰度级图像中的方法。
Starting from the definition for a set of ordered elements, the area histogram has been extended to analysis gray -level image through the notions of image thresholding decomposition and level sets.
从为有序元素集定义面积直方图出发，通过图像的阀值分解及层集等概念，面积直方图被扩展到了灰度图像。
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