An endoscope apparatus includes an imager that outputs an imaging signal and an image processor that generates an emphasis image signal and a non-emphasis image signal based on the imaging signal. The emphasis image signal corresponds to emphasis narrow band light included in an emphasis wavelength range that includes at least one of a maximum wavelength that takes a maximum value of an optical absorption spectrum and a color-range largest wavelength that takes a largest value of the optical absorption spectrum. The non-emphasis image signal corresponds to non-emphasis narrow band light included in a non-emphasis wavelength range that excludes the emphasis wavelength range from three color ranges and that is included in a color range that does not include the emphasis narrow band light.

An image sensor includes a substrate, a first set of sensor pixels formed on the substrate, and a second set of sensor pixels formed on the substrate. The sensor pixels of the first set are arranged in rows and columns and are configured to detect light within a first range of wavelengths (e.g., white light). The sensor pixels of the second set are arranged in rows and columns and are each configured to detect light within one of a set of ranges of wavelengths (e.g., red, green, and blue). Each range of wavelengths of the set of ranges of wavelengths is a subrange of said first range of wavelengths, and each pixel of the second set of pixels is smaller than each pixel of the first set of pixels.

A plurality of adjacent pixels is provided adjacently in a plurality of directions to a first pixel. A direction with a highest correlation is derived from signals of the plurality of pixels, and the direction with the highest correlation is reflected to interpolation processing to be performed on the signal of first pixel.

An image capturing apparatus includes: photoelectric converting elements having a light reception sensitivity to light in a wavelength band from 600 to 2500 nm, and receiving an object light flux to output pixel signals; n types of wavelength filters (n>4) allowing passage therethrough of light included in the flux and is in wavelength bands being respectively different, each including the wavelength band; and an image data generator generating image data using the output from an element among those having received the flux passed through one of m types of the wavelength filters (3?m<n) a combination determined based on a predetermined condition being determined such that among the respective wavelength bands of the m types of filters, a shortest-wavelength side wavelength band and a longest-wavelength side wavelength band overlap, and each filter among the m types allowing passage therethrough of light in the wavelength band including a predetermined effective wavelength band.

An imaging system serving as an image generation device is provided with: a random optical filter array that has a plurality of types of optical filters and a scattering unit; photodiodes that receive light transmitted through the random optical filter array; an AD conversion unit that converts the light received by the photodiodes, into digital data; and a color image generation circuit that generates an image, using the digital data and modulation information of the random optical filter array, in which the scattering unit is located between the plurality of types of optical filters and the photodiodes, and in which the scattering unit includes a material having a first refractive index, and a material having a second refractive index that is different from the first refractive index.

An image processing method is provided. The method is configured to process the color-block image output by the image sensor. The high-frequency region of the color-block image is determined. A part of the color-block image within the high-frequency region is converted into a first image using a first interpolation algorithm. A part of the color-block image beyond the high-frequency region is converted into a second image using a second interpolation algorithm. The complexity of the second interpolation algorithm is less than that of the first interpolation algorithm. The first image and the second image are merged into a simulation image corresponding to the color-block image. An image processing apparatus and an electronic device are provided.

An image sensor includes a substrate, a first set of sensor pixels formed on the substrate, and a second set of sensor pixels formed on the substrate. The sensor pixels of the first set are arranged in rows and columns and are configured to detect light within a first range of wavelengths (e.g., white light). The sensor pixels of the second set are arranged in rows and columns and are each configured to detect light within one of a set of ranges of wavelengths (e.g., red, green, and blue). Each range of wavelengths of the set of ranges of wavelengths is a subrange of said first range of wavelengths, and each pixel of the second set of pixels is smaller than each pixel of the first set of pixels.

According to one embodiment, a processing device includes a memory and a circuit coupled with the memory. The circuit acquires a first image of a first color component and a second image of a second color component. The first image has a non-point-symmetric blur function and captures a first object. The second image has a point-symmetric blur function and captures the first object. The circuit determines whether the first object is on a near side of a first position or on a deep side of the first position when viewed from a capture position based on the first image and the second image.

An image sensor included in a camera system comprises: a plurality of photodiodes for processing optical signals which have passed through a lens included in the camera system; and at least one mask, disposed on the top of at least one photodiode among the plurality of photodiodes, for enabling the optical signals which have passed through an inner region of the lens included in the camera system to enter the at least one photodiode.

A plurality of adjacent pixels is provided adjacently in a plurality of directions to a first pixel. A direction with a highest correlation is derived from signals of the plurality of pixels, and the direction with the highest correlation is reflected to interpolation processing to be performed on the signal of first pixel.