There is disclosed an image processing method in which a video signal is inputted from an imaging optical system in which astigmatism remains, and is displayed on a two-dimensional display apparatus. Based on the circumferential direction modulation factor and radial direction modulation factor of a lens used in the imaging optical system, a signal including the amount of vertical or horizontal modulation factor correction proportional to an nth power (n is an integer greater than 1) of a distance from a center position of a screen of the two-dimensional display apparatus is outputted for at least one vertical or horizontal frequency of the two-dimensional display apparatus.

An image processing apparatus comprises: an image generation unit configured to generate one or more reduced images based on an input image, the input image and the reduced images forming hierarchized images; a gain map generation unit configured to generate a gain map for each hierarchical level by applying a first tone characteristic to each of the hierarchized images and also further applying a second tone characteristic to at least one of the reduced images; and a composing unit configured to compose the created gain maps to generate a composed gain map, wherein the gain map generation unit applies, for each subject region, the first tone characteristic and the second tone characteristic to the at least one of the reduced images, and wherein the first tone characteristic and the second tone characteristic are mutually different tone characteristics.

An image processing apparatus comprises: an image generation unit configured to generate one or more reduced images based on an input image, the input image and the reduced images forming hierarchized images; a gain map generation unit configured to generate a gain map for each hierarchical level by applying a first tone characteristic to each of the hierarchized images and also further applying a second tone characteristic to at least one of the reduced images; and a composing unit configured to compose the created gain maps to generate a composed gain map, wherein the gain map generation unit applies, for each subject region, the first tone characteristic and the second tone characteristic to the at least one of the reduced images, and wherein the first tone characteristic and the second tone characteristic are mutually different tone characteristics.

An image processing device includes: a plurality of sharpening circuits for enhancing different frequency components for an original image; an adjusting means for adjusting the signal level ratio of an image sharpened by each of the plurality of sharpening circuits; and a generating means for generating an enhanced image by adding up signals of images subjected to the signal level ratio adjustment at a predetermined ratio.

An image processing device includes: a plurality of sharpening circuits for enhancing different frequency components for an original image; an adjusting means for adjusting the signal level ratio of an image sharpened by each of the plurality of sharpening circuits; and a generating means for generating an enhanced image by adding up signals of images subjected to the signal level ratio adjustment at a predetermined ratio.

An imaging apparatus including: an image sensor for obtaining image data; a highlight signal generation circuit for generating a highlight signal from the image data; a highlight signal combining circuit for combining a plurality of the highlight signals to generate a combined highlight signal; a display image generation circuit for superimposing the combined highlight signal on the image data to generate display image data; and a controller for moving the focusing position to a different focus position, obtaining first image data and second image data, causing the highlight signal generation circuit to generate first and second highlight signals from these pieces of image data, causing the highlight signal combining circuit to combine the first and second highlight signals to generate a combined highlight signal, and causing the display image generation circuit to superimpose the combined highlight signal on the second image data to generate display image data.

An imaging apparatus including: an image sensor for obtaining image data; a highlight signal generation circuit for generating a highlight signal from the image data; a highlight signal combining circuit for combining a plurality of the highlight signals to generate a combined highlight signal; a display image generation circuit for superimposing the combined highlight signal on the image data to generate display image data; and a controller for moving the focusing position to a different focus position, obtaining first image data and second image data, causing the highlight signal generation circuit to generate first and second highlight signals from these pieces of image data, causing the highlight signal combining circuit to combine the first and second highlight signals to generate a combined highlight signal, and causing the display image generation circuit to superimpose the combined highlight signal on the second image data to generate display image data.

Visibility of a license plate and color reproducibility of a vehicle body are improved in a monitoring camera.

A vehicle body area detection unit detects a vehicle body area of a vehicle from an image signal. A license plate area detection unit detects a license plate area of the vehicle from the image signal. A vehicle body area image processing unit performs processing of the image signal corresponding to the detected vehicle body area. A license plate area image processing unit performs processing different from the processing of the image signal corresponding to the vehicle body area on the image signal corresponding to the detected license plate area. A synthesis unit synthesizes the processed image signal corresponding to the vehicle body area and the processed image signal corresponding to the license plate area.

Visibility of a license plate and color reproducibility of a vehicle body are improved in a monitoring camera.

A vehicle body area detection unit detects a vehicle body area of a vehicle from an image signal. A license plate area detection unit detects a license plate area of the vehicle from the image signal. A vehicle body area image processing unit performs processing of the image signal corresponding to the detected vehicle body area. A license plate area image processing unit performs processing different from the processing of the image signal corresponding to the vehicle body area on the image signal corresponding to the detected license plate area. A synthesis unit synthesizes the processed image signal corresponding to the vehicle body area and the processed image signal corresponding to the license plate area.

A display control device, includes a plurality of image data-processing units acquiring and outputting image data; a synchronous signal generation unit generating and outputting a synchronous signal to a first image data-processing unit; a delay adjustment unit delaying first image data output from the first image data-processing unit for each line; a filter-processing unit performing a product-sum operation of a filter coefficient and a first partial image data; and a display image generation unit generating display image data by superimposing the filter-processing data on second image data, wherein the synchronous signal is a vertical synchronous signal included in each frame, the synchronous signal generation unit controls whether to output the synchronous signal to the first image data-processing unit earlier by a predetermined offset time, and the offset time corresponds to the number of taps and a line cycle and is within a range net exceeding a vertical retrace period.