Performs a Laplacian of Gaussian (edge enhancement) operation on the image
Plate.ConvolveLoG(FWHM)
The method syntax has these parts:
| Part | Description |
|---|---|
| FWHM (Double) | The full-width, half-max (arcseconds) of the gaussian function used for the LoG convolution kernel |
| Return (Boolean) | Success or failure (generates trappable error on failure) |
Application of this operation to the image will invalidate any plate solution and WCS info that was generated based on the unmodified image. If the original image had WCS, and you wish to write the smoothed image back to the plate file, you should re-solve the plate after this operation and before writing the plate back out.
The Laplacian of Gaussian (LoG) operation is a combination of edge enhancement and smoothing. It is useful for eliminating extended regions in the image (such as galaxies and nebulae). It is included in PinPoint for use in enhancing detectability of stars within galaxies as needed by supernova detection.
The FWHM argument is converted to pixel units using the X-dimension plate scale (Plate.ArcsecPerPixelH).