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Filters, Transforms, and Enhancements

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


2-D ConvolutionCompute 2-D discrete convolution of two input matrices
2-D FFTCompute two-dimensional fast Fourier transform of input
2-D IFFT2-D Inverse fast Fourier transform of input
2-D DCTCompute 2-D discrete cosine transform (DCT)
2-D IDCTCompute 2-D inverse discrete cosine transform (IDCT)
2-D FIR FilterPerform 2-D FIR filtering on input matrix
Block MatchingEstimate motion between images or video frames
Contrast AdjustmentAdjust image contrast by linearly scaling pixel values
DeinterlacingRemove motion artifacts by deinterlacing input video signal
Edge DetectionFind edges of objects in images using Sobel, Prewitt, Roberts, or Canny method
Histogram EqualizationEnhance contrast of images using histogram equalization
Median FilterPerform 2-D median filtering
Hough TransformFind lines in images
Hough LinesFind Cartesian coordinates of lines described by rho and theta pairs
Gaussian PyramidPerform Gaussian pyramid decomposition