there are

,franklin and marshall uk
V-weld threshold image processing algorithm automatically selected


Greatest variance on the average of the gray. Finally,ouverture abercrombie paris, select the maximum average gray values ​​as a threshold value,abercrombie paris, will be able to automatically obtain the threshold,ed hardy rea, the experiments show good results. 2 algorithm based mean [m] for the gray average,ed hardy danmark, fangcha [n] for the variance,ralph lauren danmark, with p_data pointer to open the bmp image data start address. '98 'Li to the first example of a small window of 1:3 is assigned the same starting from 2,ed hardy suomessa, there are: j / [O] = p-data [q-1) height + (i-1 )];// around 9 a neighbor,franklin marshall milano, the first small window of ji [1] = p ~ data [/ ; ji [3] = p ~ dataq-1) height + /]; ji [4] = p ~ data [/ [6] = p-data [q-1) height + (i +1)]; ji [7] = p-data ~ height + (/ +1)]; ji [8] = p-data [G +1) height + (i +1)]; mean [0] = (noat) [0] i [U [2] i [31 [4] [5] + ji [6] 7] i [8]) / 9; fangcha [O] = O; for (int / = 0; Z <9; f + +) fangcha [01 + = / [1]-mean [O] mean [O]); and so on can get mean [m], m = l, 2, ..., 8; fangcha [n], n = l, 2, ..., 8. Then find the maximum value of each variance and the corresponding gray-scale, on average, to achieve the following: b ~ = fangcha [O]; / / 6 ~ used to detect the maximum variance n-= O; for (int / = 0; f ≤ 8; f + +) {if (b ~. <fangcha [/]) b = x = fangcha [1]; n ~ = Z; 1 a place used as a marker to identify the largest variance = 0; max2 [ ,],[~ X; / / maxfangcha used to store each value of maximum variance of each result to find the maximum value of i mean variance and its gray, out of the above cycles using the same method to find the column j = 2 the maximum variance and the corresponding gray-scale, on average, can also find the maximum variance of all the columns and gray, on average, to obtain the threshold. 3 image processing experiments on land first welding image processing, the effect shown in Figure 2 to Figure 7. Figure 2 V-shaped seam welding on land an image ■ ● ■ ■ ■ ● ● ■ ● ● ■ a a × a × × × ■ I × × × ● ● ● ■ ■ ■ ■ XX × ■ ■ × × × ■ ■ × × × ■ ● ● ■ ● ● workshops where silver water: V-type weld threshold image processing algorithm automatically selected the first four automatically selected threshold Figure 3 the results of Figure 2 Image Figure 4 butt weld 5 automatically selects the threshold the results of Figure 4 Figure 6 Multi-channel multi-layer welding on land, the image of Figure 6 Figure 7 the results of automatic processing and image processing for underwater welding, the effect shown in Figure 8 to Figure 13. Figure 8 underwater welding arc starting without V-auto-image Figure 9 the results of Figure 8 Figure 1O underwater welding l1 V-image map for the results of Figure 10 Figure 12 after the mixing V-weld image Figure 13 Figure 12 automatic processing of results 4 Conclusion (I) and experimental analysis by processing a large number of welding images, made with the laser as an auxiliary light source is automatically selected to be V-shaped weld threshold algorithm, real-time, high precision anti-interference ability. (2) welding process for the interference of a large welding current image during the image filtering after the threshold processing, better, and filtering the recognition process in the weld is also indispensable treatment step. Such as Figure 10 for filtering the first, then deal with the effects threshold shown in Figure 14. Figure 14 is automatically selected threshold after the first filtering process References: ... Yang Shuying. VC + + image processing program design [M]. Beijing: Tsinghua University Press, 2003. Climbing din

相关的主题文章：


most widely used one

are very successful

Bianjing Ming