List of VEGA Algorithms

Note: Original algorithms or modifications to calssical ones, developed by our team, are underlined.

Binary images

• Convert Binary Image to Grayscale Image
• Convert Binary Image to Spectrum
• Convert Grayscale Image to Binary Image
• Convert Spectrum to Binary Image
• Dilation and Erosion
• Statistics of Binary Image
  

Contrast Enhancement

• Break-Line Correction
• Histogram Calculation
• Histogram Equalization
• Linear Contrast Correction
• Radar Texture Analysis
• Sliding Histogram Equalization
• Sliding Histogram Intensification and Truncation
• Sliding Rank Histogram Truncation
• Standard Function

Edge Detection and Segmentation

• Boundaries Detection
• Detection of Brightness Jumps
• Classical Edge Detection Algorithms
• Precise Edge Detection with 3x3 Window
• Precise Edge Detection with 5x5 Window
  

Detail Extraction and Sharpening

• Global Frequency Correction
• High Frequency Correction

Impulsive Noise filtering

• Cut-Off Median Filter
• Detection of Brightness Jumps
• Exponential Median Filter
• Extreme Median Filter
• Impulsive Noise(CNN) Filter
• Impulsive Noise(window 5x5) Filter
• Median Filter with the Mask
• Simple Median Filter

Periodic Noise Filtering

• Gaussian Spectral Median Filter
• Low-Pass and High-Pass Spectral Filtering
• Masked Spectral Mean Filter
• Spectral Median Filter

Speckle, Gaussian and Uniform Noise Filtering

• 2D Multivalued Filter
• Rank-Order (EV) Filtering
• Rank-Order (ER) Filtering
• Rank-Order (KNV) Filtering
• Frost Filter
• Gamma-MAP Filter
• Harmonic Filter
• Lee Filter
• Local Region Filter
• L_p Filter
• L_p Filter(minus)

White Noise Filtering

• Optimal Linear Filtering
• Rank-Order (EV) Filtering
• Rank-Order (ER) Filtering
• Rank-Order (KNV) Filtering

Generation of helper images such as noise or patterns

• Cells Paper
• Chess Board
• Gaussian Noise
• Gaussian Surface Fragment
• Impulsive Noise
• Saw-like Image
• Single Impulse
• Uniform Noise

Image Manipulation

• 2x Size Reduction
• Apodization
• Bilinear Interpolation
• Combination of Images
• Change Canvas Size
• Even Extension
• Extraction of Fragment(precise)
• Flip
• General Interpolation
• Image Shifting
• Pooling
• Positive/Negative Transformation
• Rotation
• Transposing of Image
• Zoom

Low-pass, High-pass Filters

• Linear Convolution with Window
• Low-pass Filtering
• Low-Pass and High-Pass Spectral Filtering

Restoration

• Blur Recognition
• Image Restoration, unblur Image

Spectra Calculation, Filtering and Manipulation

• 2D Fourier Transform
• Cosine Transform
• Division of Spectra
• Hadamard and Walsh Transform
• Insert One Fourier Spectrum Into Another Fourier Spectrum
• Low-Pass and High-Pass Spectral Filtering
• Masked Spectral Mean Filter
• Multiplication of Spectra
• Phases Combination
• Set Fourier HF Area to Constant
• Spectral Editor
• Spectral Shift
• Spectral Median Filter
• Spectrum Fragment Extraction
• Spectrum Quantization
• Spectrum Slicing
• Spectrum Statistics
• Spectrum Thresholding
• Spectrums Deviation
• Spectrums Pooling

Statistics Calculation

• Histogram Calculation
• Spectrum Statistics
• Statistical Analysis
• Statistics of Binary Image

Thresholding

• Image Thresholding
• Precise Two-Thresholding Truncation
• Two-Thresholding Truncation
• Spectrum Thresholding