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i've this code where im applying the algorithm slic superpixel on a image. using android studio + opencv contrib .My problem is how can colorise evrey superpixel segments with random colors ' each segment should have a unique colours ' , i tried to manipulate with getlabels , but it will take me too much time ( number of pixel * numberof segments if i use and doble loop ex : foreach(number_segment) do { loop all the pixel of the image : if (pixel not existe in the output) && (pixel in the same segments) { pixel = random color ;
add it to the output } }

}

i've this code where im applying the algorithm slic superpixel on a image. using android studio + opencv contrib .My problem is how can colorise evrey superpixel segments with random colors ' each segment should have a unique colours ' , i tried to manipulate with getlabels , but it will take me too much time ( number of pixel * numberof segments if i use and doble loop ex :

foreach(number_segment) do {
loop all the pixel of the image : 
  if (pixel not existe in the output) && (pixel in the same segments) 
  {
        pixel = random color ; 
 
        add it to the output 
  }
}
}
  
}}