Fast Transforms in Image Processing: Compression, Restoration, and Resampling

<table>Spectral binary mask (shown white with the dc component in the left upper corner) that indicates components of DCT spectrum of the image in Figure <a href="../fig3/">3</a>, which contain 95% of the total spectrum energy and its rectangular outline.</table>

Advances in Electrical Engineering

fig15

Figure 15

Figure 15: Fast Transforms in Image Processing: Compression, Restoration, and Resampling 