计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2015年
17期
199-204
,共6页
图像处理%中值滤波%投票%分组投票%投反票
圖像處理%中值濾波%投票%分組投票%投反票
도상처리%중치려파%투표%분조투표%투반표
image processing%median filtering%vote%grouping vote%vote against
以邻域像素的相似性为基础，提出了分组投票取中值法，避免了大量的零值票箱参入检票过程，提高了检票速度。还提出了投反票思想，利用窗口移动的相关性，使每次参入投票的像素个数大大减少，避免了每次投票前的票箱清理操作，优化了投票过程，提高了投票速度。消除了现有高速中值滤波算法不适合小窗口的缺陷，用较少的求和运算和比较运算，使各类窗口下的中值滤波速度大幅度提高。还可以快速获得图像的局部参数（局部极值、极值的个数、局部均值），用这些参数作为噪声检测的依据，能够准确地判断噪声，提高中值滤波的效果。
以鄰域像素的相似性為基礎，提齣瞭分組投票取中值法，避免瞭大量的零值票箱參入檢票過程，提高瞭檢票速度。還提齣瞭投反票思想，利用窗口移動的相關性，使每次參入投票的像素箇數大大減少，避免瞭每次投票前的票箱清理操作，優化瞭投票過程，提高瞭投票速度。消除瞭現有高速中值濾波算法不適閤小窗口的缺陷，用較少的求和運算和比較運算，使各類窗口下的中值濾波速度大幅度提高。還可以快速穫得圖像的跼部參數（跼部極值、極值的箇數、跼部均值），用這些參數作為譟聲檢測的依據，能夠準確地判斷譟聲，提高中值濾波的效果。
이린역상소적상사성위기출，제출료분조투표취중치법，피면료대량적령치표상삼입검표과정，제고료검표속도。환제출료투반표사상，이용창구이동적상관성，사매차삼입투표적상소개수대대감소，피면료매차투표전적표상청리조작，우화료투표과정，제고료투표속도。소제료현유고속중치려파산법불괄합소창구적결함，용교소적구화운산화비교운산，사각류창구하적중치려파속도대폭도제고。환가이쾌속획득도상적국부삼수（국부겁치、겁치적개수、국부균치），용저사삼수작위조성검측적의거，능구준학지판단조성，제고중치려파적효과。
Based on the similarity of neighborhood pixels, algorithm of grouping vote for median value is proposed in this paper. It avoids a lot of zero ballot-boxes into the statistical process and improves the rate of inspecting ballot-slips. It also proposes vote against idea. Using the correlation of windows mobile, it makes pixel number greatly reduced in every voting, and avoids the cleaning operation for ballot-boxes before vote. The voting is optimized, the voting rate is increased. Eliminating the existing high-speed median filter algorithm is not suitable for small window defect. It uses less summation and comparison operators. To make all kinds of window median filtering rate is greatly improved. It will get local parameters (the local extremes, the number of local extremes, and the local average)of the image quickly. These parameters are used as the basis for noise detection, can accurately determine noise and enhance the effect of the median filter.
