IMAGE PROCESSING APPARATUS

摘要

A filtering unit applies a filter for suppressing a high-frequency component to a second image generated by performing image processing including at least enlargement processing on a first image captured by using an endoscope. An image reducing unit generates a third image by performing reduction processing on the second image to which the filter has been applied. A filter setting unit sets a characteristic of a filter based on information on a maximum frequency component that can be reproduced in at least the first image and information on a maximum frequency component that should be reproduced in the third image.

主权项

1. An image processing apparatus comprising:
a filtering unit configured to apply a filter for limiting a high-frequency component of a spatial frequency of an image to a second image generated by enlarging an image size of a first image captured by using an endoscope; an image reducing unit configured to generate a third image by reducing the second image, to which the filter has been applied, to a predetermined image size; a storage unit configured to store a first and a second filter coefficients for determining a frequency characteristic of the filter; and a filter setting unit configured to set a maximum frequency for band limitation of the filter based on the image size of the first image and the image size of the third image, and further to set both a combination of the first and the second filter coefficients and the number of times of application of the first and the second filter coefficients based on the image size of the first image.