Select 2 clusters in image. MatrixPlot and Colorize

Questions
1

I want to separate 2 clusters in image. First cluster should be white, second should be black. I have two questions:

  1. When I use MatrixPlot function, I found some orange pixels. Why I have been found them? There are only 2 clusters: 1 - black, 2 - white. More you can see on the photo. Code is there

     file = Import["D:\\Mathematica\\0.jpg"];
 dataImage = ImageData[file];
 listClust = ClusteringComponents[dataImage, 2, 2];
 MatrixPlot[listClust, ColorRules -> {1 -> White, 2 -> Black}]

  2. How can I drow Image without using MatrixPlot. I have tryed something like this

     image2Clusters = Image[listClast];
  image3Clusters = Image[newClustersList];
  Colorize[image2Clusters]
  Colorize[image3Clusters]

but there are only blue background. Nothing else.

2

Could you run Union@Flatten@listClust just to make sure there are only 1s and 2s in the output? Also, try ArrayPlot[listClust, ColorRules → {1 → White, 2 → Black}].

3

Can you post original image? We do not have your “D:\” drive :wink: