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Currently I'm using ArcMap>Image Analysis>Greyscale function to greyscale an OS VectorMap tiff. This turns hill or housing colours into greyshades as expected & shown in the image below.
Is there a way to greyscale the image but remove the grey fill on block shading like houses, hillsides or roads?
Classify symbology as unique values. As long as the features you want to remove are all the same value, you can just change their color.
