how to obtain stream segments from complemented image(raster data)

Discussion created by sandeep@garg on Feb 10, 2014
Latest reply on Feb 10, 2014 by sandeep@garg
I have raster data in tiff format, i want to extract stream segments from the complement of original raster data. I am able to extract stream segments from original raster data, but not able to extract from complement data. Here complement of data means just reverse the each pixel value, i.e. for each pixel do (max_value_of_pixel - current_pixel_value)