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Fernando Berzal Galiano
Computer Engineer
PhD in Computer Science
ACM Senior Member & IEEE Computer Society Member

Image processing

Open-source software - ANSI C / C++Builder


Original image


Canny's edge detector




This software package collects some of the most widely-used algorithms in Image Processing and Computer Vision.

  • Image rotation & Linear interpolation zoom
  • Image smoothing, sharpening & gradient
  • Histogram modification (negative, contrast, equalization...)
  • Image morphology (erosion, dilation, gradient, smoothing, outlining...)
  • Image segmentation: Automatic thresholding (hysteresis, entropy, Otsu, Pun, Kapur, Yager, two peaks, iterative selection, minimum error, relaxation...) & Texture segmentation (energy, contrast, homogeneity, entropy...)
  • Edge detection: Laplacian, cracks, Marr/Hildreth, Canny, Shen/Castan, phase congruency...
  • Fourier transform: Low-pass, band-pass, and high-pass filters (ideal, Butterworth, and exponential). Homomorphic filters.
  • Haar's, Daubechies', and Walsh's wavelets.
  • Hough's transformr to detect lines

All algorithms have been coded in ANSI C, while the GUI has been developed using Borland C++Builder.

Additional information can be obtained from the following books:

  • A. K. JAIN
    "Fundamentals of Digital Image Processing"
    Prentice Hall, 1989.

  • J. R. PARKER
    "Algorithms for Image Processing and Computer Vision"
    John Wiley & Sons, 1997

File downloads

Source code Source code
Feel free to use it.

Binaries Windows binaries
GUI for Windows 95/98/NT/2000/XP.

Images Sample images
Some GRX images.

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