A reflection correction processing unit extracts at least color information from a peripheral area of a processing target pixel having a high luminance in an input image, and performs control, to the processing target pixel, to reduce the luminance of the processing target pixel and to bring a chrominance signal of the processing target pixel close to a predetermined chrominance signal ratio. In a case where a chrominance signal ratio based on the color information is close to the predetermined chrominance signal ratio, the reflection correction processing unit increases an intensity of the correction to the processing target pixel.

An image sensor including a plurality of pixels on which three types of filters which transmit light having different wavelengths and have transmittances equal to each other in a visible light region, and a clear filter in which a transmittance of the visible light region is expressed by a linear sum of the transmittances of the filters and which has a transmittance equal to the transmittances of the filters in a near-infrared light region are arranged, the image sensor outputs a first output signal, an output signal linear-transforming part transforms the first output signal into a second output signal having linearity, a color signal-generating part generates color signals, an infrared-separating part generates infrared-separated color signals, a luminance signal-generating part generates a luminance signal from the first output signal, and a color-luminance-combining part combines the infrared-separated color signals and the luminance signal and generates video signals.

The present invention provides an image processing device, an imaging device, an image processing method, and a program which are capable of accurately correcting blurring caused in first image data of an image using a near-infrared ray as a light source and, accurately performing a point image restoration process on second image data of an image using visible light and a near-infrared ray as a light source. An image processing device according to an aspect of the present invention includes an image input unit, a determination unit that determines whether image data is first image data or second image data, a first restoration processing unit that performs a first restoration process using first restoration filters for performing phase correction and amplitude restoration on the determined first image data, and a second restoration processing unit that performs a second restoration process using second restoration filters for performing amplitude restoration without phase correction on the determined second image data.

The present disclosure relates to an imaging apparatus, an imaging method, and a program that allow control of an invisible light component of a captured image without a mechanism that inserts and removes a filter that shields the invisible light component.

A luminance composition unit combines a luminance signal of a visible light component of a pixel signal of a captured image including an invisible light component and the visible light component with the pixel signal. A chroma gain amplifier attenuates a chrominance signal of the visible light component. The present disclosure can be applied to an imaging apparatus and the like that include, for example, an optical filter that transmits visible light and infrared light, have pixels in an RGBW array, and perform a Bayer conversion process on a captured image.

A method of transforming an N-bit raw wide dynamic range (WDR) Bayer image to a K-bit raw red-green-blue (RGB) image wherein N>K is provided that includes converting the N-bit raw WDR Bayer image to an N-bit raw RGB image, computing a luminance image from the N-bit raw RGB image, computing a pixel gain value for each luminance pixel in the luminance image to generate a gain map, applying a hierarchical noise filter to the gain map to generate a filtered gain map, applying the filtered gain map to the N-bit raw RGB image to generated a gain mapped N-bit RGB image, and downshifting the gain mapped N-bit RGB image by (N?K) to generate the K-bit RGB image.

An original image is subjected to reduction processing while minimizing cutting of intrinsically-reproducible frequency bands. A solid-state image-capturing device is provided with: a photoelectric conversion unit that is formed by arraying pixels of a plurality of colors having predetermined color-array periodicity in two-dimensionally, vertically and horizontally; a pixel mixing and reading unit that mixes pixel signals obtained by the photoelectric conversion unit, in each of pixels of the same colors in an n?n (n denotes a desired integer of 2 or more) block, and that outputs multi-channel reduced image signals with a reduction ratio 1/n; and an inter-channel displacement correcting unit that corrects inter-channel displacements of the reduced image signals output by the pixel mixing and reading unit and that outputs corrected reduced image signals.

Embodiments of the present disclosure relate to highlight recovery of a high-resolution image using a single low-resolution image captured at a lower exposure. An example apparatus includes a hue target circuit that receives an input image at a high-resolution including at least one pixel with a clipped color channel. For example, the input image is a Blue sky image with a pixel having clipped Blue channel. The hue target circuit also receives a set of candidate hue maps having a pixel resolution lower than the high-resolution of the input image. The hue target circuit generates a target hue value for the at least one pixel using the pixel information of the set of candidate hue maps. The apparatus also includes a hue recovery circuit that generates a recovered version of the input image by adjusting hue information of the clipped color channel based on the generated target hue.

Disclosed are a system and method for enhancing the visualization, classification, and/or interpretation of a photonic readout of a colorimetric assay. The colorimetric assay is associated with a defined color spectrum that includes a positive region indicative of positive test results and a negative region indicative of negative test results. The system and method operate to receive an image of the photonic readout, convert the image to a predefined color space, enhance image saturation and hue, and adjust a brightness level of the image. The system and method increase visual contrast between the negative and positive regions of the color spectrum specific to the colorimetric assay, making the readout easier to interpret for both users with normal vision and users with variations of color weakness or blindness.

Disclosed are a system and method for enhancing the visualization, classification, and/or interpretation of a photonic readout of a colorimetric assay. The colorimetric assay is associated with a defined color spectrum that includes a positive region indicative of positive test results and a negative region indicative of negative test results. The system and method operate to receive an image of the photonic readout, convert the image to a predefined color space, enhance image saturation and hue, and adjust a brightness level of the image. The system and method increase visual contrast between the negative and positive regions of the color spectrum specific to the colorimetric assay, making the readout easier to interpret for both users with normal vision and users with variations of color weakness or blindness.

A device for capturing an image of an object of medical interest in remitted or reflected illumination light and for capturing an image of the object in fluorescent light generated by Cy5.5 and/or SGM-101 and for capturing an image in fluorescent light generated OTL38 and/or indocyanine green (ICG). The device includes an image sensor for detecting blue, green and red light, another image sensor for detecting fluorescent light of Cy5.5 and/or SGM-101 and OTL38 and/or ICG, a beam splitter guiding light having a wavelength smaller than a predetermined cutoff wavelength to the first sensor and guiding light having a wavelength greater than the predetermined cutoff wavelength to the second sensor, and filters upstream of the second sensor for partially, substantially or completely suppressing light having a wavelength exciting Cy5.5 and/or SGM-101 and for partially, substantially or completely suppressing light having a wavelength suitable for exciting fluorescence of OTL38 and/or ICG.