| 摘要 |
An x-ray system acquires medical images stored as an array of pixel values. Bright regions in the image produced by collimation or protective devices on the patient are automatically detected and filled with dark pixel values to reduce glare and improve the readability of the image. Automatic detection is achieved on a down sampled copy of the image in which edges of bright background regions are detected. The bright background regions in the down sampled image are filled with dark pixel values and an up sampled copy of this filled image is merged with the original image to produce the final image.
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