OpenCV Android fine-tune thresholding











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I'm trying to detect a line on an Android-smartphone. I also need to know which pixels come first and which come last. So I need to detect the line with my own algorithm, and therefore I need to get a binary image. I tried different things (threshold, adaptive threshold with and without gaussian, median blur) but I wasn't able to get it right. I always get that 'whole'. Do you have suggestions?
Thanks in advance.
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enter image description here






android opencv adaptive-threshold image-thresholding







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    up vote
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    down vote

    favorite












    I'm trying to detect a line on an Android-smartphone. I also need to know which pixels come first and which come last. So I need to detect the line with my own algorithm, and therefore I need to get a binary image. I tried different things (threshold, adaptive threshold with and without gaussian, median blur) but I wasn't able to get it right. I always get that 'whole'. Do you have suggestions?
    Thanks in advance.
    enter image description here



    enter image description here






    android opencv adaptive-threshold image-thresholding







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm trying to detect a line on an Android-smartphone. I also need to know which pixels come first and which come last. So I need to detect the line with my own algorithm, and therefore I need to get a binary image. I tried different things (threshold, adaptive threshold with and without gaussian, median blur) but I wasn't able to get it right. I always get that 'whole'. Do you have suggestions?
      Thanks in advance.
      enter image description here



      enter image description here






      android opencv adaptive-threshold image-thresholding







      share|improve this question













      I'm trying to detect a line on an Android-smartphone. I also need to know which pixels come first and which come last. So I need to detect the line with my own algorithm, and therefore I need to get a binary image. I tried different things (threshold, adaptive threshold with and without gaussian, median blur) but I wasn't able to get it right. I always get that 'whole'. Do you have suggestions?
      Thanks in advance.
      enter image description here



      enter image description here






      android opencv adaptive-threshold image-thresholding




      android opencv adaptive-threshold image-thresholding






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 9 at 21:40









      Anton

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