there is not yet a good solution for vectorizing a picture drawn on a paper . this work attempts to solve the problem of vectorizing grayscale line drawings 在此,一種比較好的處理方法是生成筆劃的骨架,再對(duì)應(yīng)骨架生成有一定粗細(xì)變化的筆劃。
there is not yet a good solution for vectorizing a picture drawn on a paper . this work attempts to solve the problem of vectorizing grayscale line drawings 在此,一種比較好的處理方法是生成筆劃的骨架,再對(duì)應(yīng)骨架生成有一定粗細(xì)變化的筆劃。
the purpose of this paper is to transform black-white raster image into vector storage after preprocessing and vectorizing steps . an improved vectorization algorithm is presented after theoretically analyzing and comparing different vectorization methods 采用模式識(shí)別技術(shù),將二值點(diǎn)陣圖像信息通過(guò)預(yù)處理、矢量化處理等環(huán)節(jié)轉(zhuǎn)換為矢量信息存儲(chǔ)是本文研究的主要目的。
the oil field, named daqing, spent much money on software and computer equipment---- sun workstations . then they spent a few years, finished only little part of the work . the main aim was at vectorizing the well log curves applying foreign software 目前通常采用數(shù)字化儀或國(guó)外矢量化軟件來(lái)完成這一工作,但是速度較慢,效率較低,例如,大慶油田曾經(jīng)為了矢量化部分圖紙,購(gòu)買(mǎi)了矢量化軟件,并購(gòu)進(jìn)大量sun工作站,花了幾年時(shí)間才只是處理了一部分。
this type of strategy has two main shortcomings : 1 ) useful information for classification task contained in the matrix structure may be jeopardized in the vectorizing procedure; 2 ) after vectorizing procedure computation complexity in classification task may increase substantially due to the vector pattern representation 這種方法存在著兩個(gè)主要的缺點(diǎn):1)矩陣模式中對(duì)分類(lèi)有用的結(jié)構(gòu)信息很可能會(huì)因?yàn)橄蛄炕牟僮鞫獾狡茐模?)向量化的操作極大的增加了特征提取及隨后識(shí)別的運(yùn)算復(fù)雜度。