# Exercises

Sample speech files (PCM 8 kHz, 16 bits).

Sample images (*.bmp files).

Problems

Solutions **(The hard copies of the solutions are available from lecturer!!! ) **

MATLAB programs for undergraduate students

Optimal nonuniform quantizer for the Gaussian variable

The autocorrelation method and the Levinson-Durbin procedure

Interpolation of the decimated components

Uniform variable rate quantizer(rounding off type)

The main program (YUV to BMP, decimation, DCT, quantization, IDCT, interpolation)

The main program for 1-D wavelet decomposition and reconstruction

1-D wavelet decomposition and reconstruction

The main program for 2-D wavelet decomposition and reconstruction

2-D wavelet decomposition and reconstruction

1-D wavelet decomposition of column

1-D wavelet decomposition of row

1-D wavelet reconstruction of column

1-D wavelet reconstruction of row

The main program for hierarchical decomposition and reconstruction of image (orthogonal filters)

Hierarchical decomposition and reconstruction of image (orthogonal filters)

2-D decomposition of image (orthogonal filters)

1-D decomposition of column (orthogonal filters)

The main program for wavelet decomposition + quantization + reconstruction (orthogonal filters)

Wavelet decomposition + quantization + reconstruction (orthogonal filters, Y component)

Wavelet decomposition + quantization + reconstruction (orthogonal filters, U,V components)

Coefficients of the orthogonal and biorthogonal filters

Main program for wavelet decomposition using biorthogonal filters

Wavelet decomposition using biorthogonal filters+quantization +coding+reconstruction (Y component)

Wavelet decomposition using biorthogonal filters

Wavelet decomposition of row by biorthogonal filters

Wavelet decomposition of column by biorthogonal filters

Reconstruction (biorthogonal filters)

Reconstruction of row (biorthogonal filters)

Reconstruction of column(biorthogonal filters)

Main program (BMP to YUV transform, decimation, jpeg-like coding, expansion, YUV to BMP transform)

Zigzag ordering for 8x8 block of DCT coefficients

Program for finding pitch period of the speech frame

Main program for finding LSPs for the filter of order 4

Program for finding roots of the polynomial

Program for reconstructing polynomial from its roots

Program for finding rate-distortion functions by using the Blahut algorithm