| 摘要 |
A method and an apparatus for measuring a size of a tumor in breast images are provided to accurately measure the tumor size by referring to an overall brightness variation of pixels. An apparatus for measuring a size of a tumor in breast images includes a mean value calculator(210), a mean value memory(220), a radius detector(230), a mean value convergence determining portion(240), a mean value increase determining portion(250), and a radius increasing portion(260). The mean value calculator calculates a brightness mean value of image pixels within a predetermined radius from a center of a tumor region. The mean value memory stores the calculated mean value. The radius detector compares the radius used for calculating the mean value with a preset radius. The mean value convergence determining portion determines whether the mean value converges by using the mean value. The mean value increase determining portion determines whether the mean value increases. The radius increasing portion increases the radius, when the radius used for calculating the mean value is determined to be small.
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