Image processing device, image processing method, image processing program, and image display device

摘要

A contour direction estimating unit estimates a contour direction in which signal values of pixels are constant values for each pixel, a low pass filter unit smooths a signal value of the pixel based on a signal value of each reference pixel that is a pixel of a reference region corresponding to the pixel and arranged in the contour direction of the pixel estimated by the contour direction estimating unit for each pixel, and a high frequency expanding unit generates a high frequency component of the signal value of the pixel and expands a frequency band for the signal value of the pixel.

主权项

1. An image processing device, comprising:
input circuitry that receives an external image signal; contour direction estimating circuitry that estimates a contour direction in which signal values are constant values for each pixel of the external image signal; low pass filter circuitry that smooths a signal value of the pixels of the external image signal based on a signal value of each reference pixel that is a pixel of a reference region corresponding to the pixel and arranged in the contour direction of the pixel estimated by the contour direction estimating circuitry for each pixel; high frequency expanding circuitry that generates a high frequency component of the signal value of the pixel and expands a frequency band for the signal value of the pixel; and output circuitry that transmits a processed image signal corresponding to the signal value of the pixel.