Sharpening images with traditional methods increases the amount of noise in the image. This script implements a method to sharpen images described by Joern Loviscach in the german computer magazine c't, 22/1999. Basically it "squeezes" unsharp edges. This method is a simplified Version of an algorithm by Nur Arad and Craig Gotsman: "Enhancement by Image-Dependent Warping", IEEE Transactions on Image Processing, 1999, Vol. 8, No. 8, S. 1063.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
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