OOF2: The Manual
Name
OOF.Image.Modify.Sharpen — Sharpen the image by convolving with a Gaussian.
Synopsis
OOF.Image.Modify.Sharpen(image,radius,sigma)
Details
- Parent Menu: OOF.Image.Modify
-
Callback: function
doImageModin moduleooflib.image.imagemodifier -
Parameters:
image- Type: The path to an existing
Imageobject. radius- Radius of the Gaussian. Type: A real number.
sigma- Standard deviation of the Gaussian. Type: A real number.
Description
Sharpen an Image by convolving it with a Gaussian operator of
the given radius and standard deviation
(sigma), specified in units of the pixel
size. For reasonable results, radius should be
larger than sigma. A suitable radius will be
chosen automatically if you set radius to zero.
This routine comes from the ImageMagick library.
Figure 6.40. Sharpening an Image

A micrograph of Si3N4 (courtesy of C.-H. Hsueh).

The result of sharpening the image with
radius=0 and sigma=1.

The result of sharpening the image with
radius=0 and sigma=5.



