-shadow

Top  Previous  Next

-shadow value        

 

Sets the shadow value for the images to be acquired. The device must support setting shadow values.  Some devices do not support setting the shadow level.  The -verbose option will generate a message that will inform whether setting the shadow value worked successfully or an error was encountered.

 

The shadow value can be any numeric value between 0 and 255, inclusive.

 

The shadow setting is an advanced setting that allows the device to set a maximum "dark" color that the image will use.  Any color that would be darker than the shadow is equal to the shadow value.  See also -highlight to set the lightest color to use in the image.

 

Example:  Acquire a BMP image named test.bmp.  The color is RGB, and the shadow value used is 100.

 

twainsave -f test.bmp -color 2 -shadow 100

 

Default Setting:

The shadow value that the device determines as the default.