ImageResize4J is a new commercial Java class library for high-quality
Java2D-based and JAI-based image resize and scaling. It offers 24
interpolation filters included such well-known as Bilinear, Bicubic,
Lanczos3 or Hamming and some unique interpolation filter families such
as Ideal or Sharp. The library is 100% pure java (no native code) and
compatible with Java 1.2 and later.
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Gif4J Software,
http://www.gif4j.com