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

[sandeepgarg1]

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)

[sandeepgarg1]

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)