Is a process whereby a broader range of colors can be synthesized with a limited set of colors by coloring adjacent pixels to produce the illusion of a color that is not in the set 是用一组有限的颜色合成出一个更大范围的颜色的过程,方法是给相邻像素着色以产生不在该组颜色中的新的颜色幻觉。
A refined curve is obtained from a digital curve by connecting each pair of adjacent pixels with a straight - line segment implicitly . since the refined curve is continuous , precision of calculations on digital images can be 精化数字曲线的思想是在数字曲线相邻的象素点之间作线性插值,得到曲线的连续边线,从而提高数字图象处理过程中的计算精度。
We extend the baker transform to k - th system , give the digital image scrambling algorithm based on it and test the algorithm robust ( for example , key space , two adjacent pixels correlation and tolerance of image processing ) 特别是,本文对基于面包师变换的数字图像置乱算法的鲁棒性进行了分析(如密钥空间、相邻像素的相关性、抗图像处理等) 。
And the region - dependent unsupervised algorithms are used in most precise detection applications . both gray information and adjacent pixels characteristic are taken into account in the algorithm , so the detection precision and anti - noise capability can be improved 一般较精确的检测都是采用基于区域的非监督变化检测方法,既考虑差异图象灰度信息,又考虑了其邻域特性,一定程度上可以提高检测精度、增强抗噪性能。
So the warping operation is much faster . after factoring the 3d image - warping equation , the pre - warping equation has a very simple structure . it can be divided into two - pass process using 1 - d operations along rows and columns and only interpolating between two adjacent pixels each time 分解后,图像预warp变换等式具有非常简单的一维结构,可以沿图像的行、列独立地一维操作实现,每次只须在两个相邻的像素之间线性插值处理空洞填充。
For every point on contour curves , the support area and support radius were first calculated based on actual distance of adjacent pixels , end points were obtained with linear interpolation technique ; next , the distance between point and its centroid of support area was used as feature strength to determine feature points candidate ; finally , those points with local maximum feature strength were selected as vertices of polygonal 摘要首先基于相邻像素间的欧氏距离计算出轮廓曲线上每一点的支持区域及支持半径,用线性插值得到支持区域的端点;然后求得支持区域的质心,以曲线上的点和其相应的支持区域质心之间的距离作为特征响应筛选出候选特征点;最后将具有局部极大特征强度的点作为多边形的顶点。
This thesis is part of the project of national science foundation of china “ study on color video coding based on four - dimensional matrix ” . a multi - matrix theory model has been established in the project . and the color video is presented into a four dimensional matrix model and the four - dimensional discrete cosine transform ( 4d - mdct ) is applied to reduce the correlation between color components and adjacent pixels 将多个彩色视频帧构建在一个四维矩阵模型中进行运动补偿预测、四维矩阵离散余弦变换和矩阵量化,最后利用基于上下文的变长编码方法进行压缩,以全面去除彩色视频各象素之间、各彩色分量之间以及连续帧之间的相关性,从而实现高信噪比条件下的高倍压缩。