How to get pixel information of a straight line plotted in an image?

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roro6992
roro6992 2014년 1월 18일
댓글: Image Analyst 2014년 1월 18일
Hi..evryone. I have a binary image of a corridor or a maze where white areas indicate the corridor path or accessible path. And black regions represent the inaccessible areas. I have been provided a start point and I want to trace my path through the corridor and find a way out of it. So for this I start by projecting straight lines in 4 directions upto a certain xtent and see if any of them fully traverses through white zone only. So for this i need to know the pixel info. of the point on the st. lines. Is there any way of getting it?
Again is there any better approach of solving the problem? If its thre. please let me know. Thanx in advance!! The image of the corridor is attached for help.

답변 (1개)

Image Analyst
Image Analyst 2014년 1월 18일
I solve a maze using image processing and morphology. See my File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/27175-mazesolution
Basically you label the walls, take one wall, say the left one, fill holes, dilate, subtract, and you're left with just the left wall.
Other resources for you are
Steve's Blog where he talks about using bwgeodesic() to solve the shorted path problem.
Prof. Luengo's Blog solves harder mazes than mine.
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roro6992
roro6992 2014년 1월 18일
Yea yea.Found it. Thanx anyway :)
Image Analyst
Image Analyst 2014년 1월 18일
I'm glad improfile() worked for you - that's it's main purpose. What do you mean anyway ?

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