This tool can be used to modify the value of pixels containing the NoData value for an input raster image. This operation differs from the set_nodata_value tool, which sets the NoData value for an image in the image header without actually modifying pixel values. Also, set_nodata_value does not overwrite the input file, while the modify_nodata_value tool does. This tool cannot modify the input image data type, which is important to note since it may cause an unexpected behaviour if the new NoData value is negative and the input image data type is an unsigned integer type.

## See Also

set_nodata_value, convert_nodata_to_zero

## Function Signature

`def modify_nodata_value(self, input: Raster, new_value: float = -32768.0) : ...`

## Project Links

WbW Homepage User Manual Support WbW