EIKONA is a digital image processing and analysis package.
Editor: EIKONA is a family of general purpose, highly portable digital image processing applications. The full implementations contain more than 500 routines in the following areas (non-exhaustive list):
Basic operations:
-Storage and retrieval of raw/TIFF/JPEG/TGA/GIF/PostScript/BMP images.
-Mixing, Overlay, display and printing of binary, GreyScale and color images.
-Basic operations, binary operators, geometrical transformations, zooming, color transformations.
-Various noise generators.

Transformations:
-Various FFT algorithms, periodogram, correlation, convolution, DCT.
-Linear filtering, Wiener filters, median and related filters, adaptive filters.
-Histogram computation, display and equalization.
-Halftoning, pseudocoloring, interpolation.

Other Features:
-Image coding algorithms (e.g. run-length, READ, LZW, DCT coding).
-Edge, line and Contour detectors/followers.
-Region segmentation, texture analysis.
-Object counting and labeling, feature measurements, contour approximations, pyramids, quadtrees, thinning. Binary and greyscale mathematical morphology. you can free download EIKONA 4.0 now.