Filters, Transforms, and Enhancements

FIR filtering, frequency and Hough transforms, Gaussian pyramiding, deinterlacing, contrast enhancement, noise removal

Functions

configureKalmanFilter Create Kalman filter for object tracking
integralFilter Integral image filter
integralImage Compute integral image
isfilterseparable Determine whether filter coefficients are separable

Classes

vision.KalmanFilter Kalman filter for object tracking
integralKernel Integral image filter

System Objects

vision.ContrastAdjuster Adjust image contrast by linear scaling
vision.Convolver Compute 2-D discrete convolution of two input matrices
vision.FFT Two-dimensional discrete Fourier transform
vision.IFFT Two–dimensional inverse discrete Fourier transform
vision.DCT Compute 2-D discrete cosine transform
vision.IDCT Compute 2-D inverse discrete cosine transform
vision.Deinterlacer Remove motion artifacts by deinterlacing input video signal
vision.EdgeDetector Find object edge
vision.HistogramEqualizer Enhance contrast of images using histogram equalization
vision.HoughTransform Find lines in images via Hough transform
vision.HoughLines Find Cartesian coordinates of lines that are described by rho and theta pairs
vision.ImageFilter Perform 2-D FIR filtering of input matrix
vision.MedianFilter 2D median filtering
vision.Pyramid Perform Gaussian pyramid decomposition

Blocks

2-D Convolution Compute 2-D discrete convolution of two input matrices
2-D FFT Compute two-dimensional fast Fourier transform of input
2-D IFFT 2-D Inverse fast Fourier transform of input
2-D DCT Compute 2-D discrete cosine transform (DCT)
2-D IDCT Compute 2-D inverse discrete cosine transform (IDCT)
2-D FIR Filter Perform 2-D FIR filtering on input matrix
Contrast Adjustment Adjust image contrast by linearly scaling pixel values
Deinterlacing Remove motion artifacts by deinterlacing input video signal
Edge Detection Find edges of objects in images using Sobel, Prewitt, Roberts, or Canny method
Histogram Equalization Enhance contrast of images using histogram equalization
Median Filter Perform 2-D median filtering
Hough Transform Find lines in images
Hough Lines Find Cartesian coordinates of lines described by rho and theta pairs
Gaussian Pyramid Perform Gaussian pyramid decomposition
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