太原科技大学学报
太原科技大學學報
태원과기대학학보
JOURNAL OF TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
2015年
3期
217-222
,共6页
齿形轴类件%冷体积成形%塑性成形%成形装备
齒形軸類件%冷體積成形%塑性成形%成形裝備
치형축류건%랭체적성형%소성성형%성형장비
image smoothing%image enhancement%heat equation%heat kernel%anisotropic diffusion%complex sky condition
设计了一种在复杂天气条件下对天空图像的增强方法。针对图像噪声对增强效果的影响,我们利用热核方法对图像进行降噪处理。为了利用热核方法对图像降噪,我们使用无向加权图来表示文中的像素点阵图,由热方程捕获加权图的各向异性扩散,以此保留图像的最大结构信息;我们通过自适应子块局部方差法对平滑过的图像进行增强,结果表明,这种方法可以有效的增强图像效果,对后续的分割等操作提供有利的条件。
設計瞭一種在複雜天氣條件下對天空圖像的增彊方法。針對圖像譟聲對增彊效果的影響,我們利用熱覈方法對圖像進行降譟處理。為瞭利用熱覈方法對圖像降譟,我們使用無嚮加權圖來錶示文中的像素點陣圖,由熱方程捕穫加權圖的各嚮異性擴散,以此保留圖像的最大結構信息;我們通過自適應子塊跼部方差法對平滑過的圖像進行增彊,結果錶明,這種方法可以有效的增彊圖像效果,對後續的分割等操作提供有利的條件。
설계료일충재복잡천기조건하대천공도상적증강방법。침대도상조성대증강효과적영향,아문이용열핵방법대도상진행강조처리。위료이용열핵방법대도상강조,아문사용무향가권도래표시문중적상소점진도,유열방정포획가권도적각향이성확산,이차보류도상적최대결구신식;아문통과자괄응자괴국부방차법대평활과적도상진행증강,결과표명,저충방법가이유효적증강도상효과,대후속적분할등조작제공유리적조건。
A method for enhancing sky image in complex weather condition was presented. In order to eliminate the impact of noise in the processing of enhancement,heat kernel method was used to smooth the image. the image pix-el lattice using a weighted undirected graph was presented. The heat equation could capture the anisotropic diffu-sion across this weighted graph-structure,so it could keep the structural information about the image. Then the local variance method was used,which sub-block could be adaptive to enhance the smoothed image. The results show that the method can effectively enhance the image quality,which made a favorable condition for the next steps of processing sussequent segmentation,etc. .