通過(guò)對(duì)大量現(xiàn)場(chǎng)采集的圖像的觀察，可以發(fā)現(xiàn)所有圖像都有同樣的規(guī)律：將Cb作為灰度值時(shí)，焊縫本身像素灰度值較高，呈現(xiàn)灰黑色。而焊縫本身像素偏低，呈灰白色。同時(shí)在交界處存在小段過(guò)濾帶。針對(duì)這個(gè)特征，可分別預(yù)先制作2個(gè)小模板。焊縫左邊緣模板a和焊縫右邊緣模板b，如圖4所示。

廈門岳航計(jì)算機(jī)工程有限公司

聯(lián)系人：李素云

企業(yè)QQ：2851195446，2851195466

手機(jī)：18965423501

座機(jī)：0592-5165501

系統(tǒng)對(duì)圖像逐行從左到右掃描。對(duì)各點(diǎn)所在窗口圖像與模板a進(jìn)行匹配。求得匹配相似度，取相似度時(shí)所在點(diǎn)x坐標(biāo)為該行的焊縫左邊緣點(diǎn)。于是可得一系列左邊緣點(diǎn)，求均值即得到焊縫左邊緣坐標(biāo)。同理，從上到下，由右到左掃描每一行，各點(diǎn)所在窗口圖像與b模塊進(jìn)行匹配運(yùn)算，即可得焊縫右邊緣坐標(biāo)。將左右邊緣坐標(biāo)相加除以2即可得焊縫中心橫坐標(biāo)。

Steel Braided Hose with Brass Ends 1" NPT Male, 48" Long

Stainless Steel Braided Hose 1/2"-Flare to 1/2"-NPT 24"(L)

Freelin-Wade 1J-207-05 Red Nylon Hose 1/2" x 3/8" 100'

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