Method for detecting streak noises in digital image
A digital image and detection method technology, applied in image analysis, image communication, image data processing, etc., can solve the time-consuming and labor-intensive problems of human eye recognition, and achieve the effect of reducing errors
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[0036] figure 1 It is the detection method of diagonal noise in the first embodiment of the present invention, figure 2 for application to figure 1 Schematic representation of the digital image of the process. Please refer to figure 1 and figure 2 , first proceed to step S110 to capture a circular region of interest C of a digital image 10 . Next, step S120 is performed to calculate the respective projection amounts of the circular region of interest C at multiple rotation angles. For example, the Wraydon transformation algorithm can be used to calculate the projection of the circular region of interest C on these rotation angles. Then proceed to step S130, converting these projection quantities into respective amplitudes of these rotation angles. These projected quantities can be converted to these amplitudes, for example, using a Fast Fourier Transform algorithm. Then go to step S140 to find a maximum value from these amplitudes. Then proceed to step S150, comparin...
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