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How to remove the shadow of the fixed grid

How to remove the shadow of the fixed grid?
The invention discloses a method for removing fixed grid shadows. The original X-ray image is subjected to filtering processing and edge detection to obtain a mixed image containing fixed grid shadows and tissue edges, and then linear screening processing is performed to obtain After the preliminary fixed grid shadow image of the fixed grid shadow line is preset, the non-grid grid shadow is removed in a straight line to obtain an intermediate grid shadow image containing only the grid shadow, and a correction curve is constructed Function to correct the intensity of the middle grid shadow image to get the final grid shadow image, and finally subtract the final grid shadow image from the original X-ray image to get the image after removing the grid shadow The present invention also discloses a mobile terminal and a computer-readable storage medium. The present invention effectively prevents artificially introduced artifacts and greatly improves the efficiency of removing fixed grid shadows.

fixed grid

Author:Lillian


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