Image recognition method and image recognition apparatus
First Claim
1. An image recognition method, comprising the steps of:
- (a) judging whether a set of discrete cosine transform (DCT) coefficients corresponding to an image and/or a set of texture parameters corresponding to the set of DCT coefficients exist;
(b) if the judgment of step (a) is no, generating the set of DCT coefficients by selectively performing a DCT or an inverse discrete cosine transform (IDCT) to the image according to a format of the image, and generating the set of texture parameters according to the set of DCT coefficients; and
(c) comparing the set of texture parameters with a set of target texture parameters to generate a recognition result.
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Abstract
The invention provides an image recognition method. First, it is judged whether a set of discrete cosine transform (DCT) coefficients corresponding to an image and/or a set of texture parameters corresponding to the DCT coefficients exist. If the judgment is no, the image is selectively performed a DCT or an inverse discrete cosine transform (IDCT) to generate the set of DCT coefficients based on a format of the image. Based on the set of DCT coefficients, the set of texture parameters is then generated. Afterward, the set of texture parameters is compared with a set of target texture parameters to generate a recognition result.
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Citations
22 Claims
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1. An image recognition method, comprising the steps of:
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(a) judging whether a set of discrete cosine transform (DCT) coefficients corresponding to an image and/or a set of texture parameters corresponding to the set of DCT coefficients exist; (b) if the judgment of step (a) is no, generating the set of DCT coefficients by selectively performing a DCT or an inverse discrete cosine transform (IDCT) to the image according to a format of the image, and generating the set of texture parameters according to the set of DCT coefficients; and (c) comparing the set of texture parameters with a set of target texture parameters to generate a recognition result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An image recognition apparatus, comprising:
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a judging module, for judging whether a set of discrete cosine transform (DCT) coefficients corresponding to an image and/or a set of texture parameters corresponding to the set of DCT coefficients exist; a DCT/IDCT module, electrically connected to the judging module, if the judgment of the judging module is no, generating the set of DCT coefficients by selectively performing a DCT or an inverse discrete cosine transform (IDCT) to the image according to a format of the image, and generating the set of texture parameters according to the set of DCT coefficients; and a comparing module, electrically connected to the DCT/IDCT module, for comparing the set of texture parameters with a set of target texture parameters to generate a recognition result. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification