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The zero-crossing rates (ZCRs) of the wavelet frame representation of texture images are proposed as features for texture classification. Results indicate that ZCR features lower the probability of error (PE) by 40% over energy (EN) and correlation coefficient features. Augmenting ZCR features with EN features improves the PE by 70% over ZCR features alone.
Inspec keywords: image representation; wavelet transforms; image classification; image texture
Other keywords:
Subjects: Optical, image and video signal processing; Image recognition; Integral transforms in numerical analysis; Computer vision and image processing techniques; Integral transforms in numerical analysis