Gri Commands
1: Introduction 2: Simple example 3: Fancy example 4: Running Gri 5: Programming Gri 6: General Issues 7: X-Y Plots 8: Contour Plots 9: Image Plots 10: Examples 11: Handling Data 12: Gri Commands 13: Gri Extras 14: Evolution of Gri 15: Installing Gri 16: Gri Bugs 17: System Tools 18: Acknowledgments 19: License 20: Newsgroup 21: Concept Index |
12.24: The `
|
`mask the image [to {uservalue .u.}|{imagevalue .i.}]' |
to
' phrase is present,
change the image value to 0 in pixel units. If the
`to uservalue .u.
' phrase is present, change the pixel to hold the
imagevalue that
corresponds to this uservalue (see `set image range
' command for
a discussion of this correspondance). If the `to imagevalue .i.
',
change the pixel to hold that imagevalue (in range 0 to 255 inclusive
for 8-bit images).