Hi there,

We've had some difficulty getting accurate results with the following image 
that has varying colours in a screenshot, have tried changing DPI and 
creating a grayscale image but the accuracy still is not the greatest, any 
recommendations on what image processing techniques we could make use of to 
improve accuracy? Maybe specific algorithms or a combination of techniques 
for this kind of image with varying colours?

[image: zambia2.jpg]

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