I want to extract the raster cells from a big raster with the raster cells from a smaller raster which is overlapping with the bigger raster. Unfortunately, I cannot find a tool for that in ArcMap 10.3.1, but is there a way to do it? I do not want to subtract the values, but there should be noData in the new bigger raster where the bigger raster is overlapping with the smaller raster, like a hole in the bigger raster with the extent of the smaller one.
Use a conditional statement in the raster calculator.
See the ArcGIS documentation on:
You can set the output in the area of the smaller raster to something like 9999 and then use the setNull tool, or reclassify to turn it to NoData. Another simple alternative, if the 'smaller' raster has the same extent as the bigger one, is to use the reclassify tool to make the black area (persumably currently set to a value of 0) to NoData and the NoData areas to 1. Then simple multiply the result of that operation with 'bigger'.