grayscale converting

[AliDağ]

Hello all! 

ı need a set of inputs for my urban growth model, therefore ı need to convert my raster datasets into grayscale GIF files. but when ı try to use the grayscale function in image analysis it converts my raster into 1 band file and when ı give .333 for that band it returns a blank map in which all values are looks the same. Is anyone familiar with Sleuth urban growth model or spacially about this problem? 

hope ı can find an answer. good day! 

[PeterBecker]

Not sure on the Sleuth model. Suggest you look to using raster functions to define the transforms you are looking to apply. Also look to use ArcGIS Pro vs ArcMap. The greyscale function simply converts a multiband image/raster into a single band image/raster by multiplying each band by the defined weight (which is normalized by the sum of weights). If you don't see a result it may be that no stats are available or the bit depth of the output is not what you expect.