Patent classifications
H04N23/82
Logarithmic Curve Generation Method, Device, and Storage Medium
Embodiments of this application provide a logarithmic curve generation method, a device, and a storage medium. The method includes: determining a dynamic range of a photosensitive element of a mobile device and a coding depth of the mobile device; obtaining a plurality of numerical points within the dynamic range, where each numerical point includes a stop within the dynamic range and a corresponding code value; and performing curve fitting based on the plurality of numerical points to obtain a log curve, where when the mobile device shoots in a log mode, the log curve is used to convert, into a code value, a raw signal that is output by the photosensitive element and that indicates brightness.
Image processing device, method, and imaging device
An image processing device including: a color correction section that is input with an RGB signal, and performs color correction on the RGB signal; a YC conversion section that converts the color corrected RGB signal to a first brightness signal and a color difference signal; a Y conversion section that is input with the RGB signal, and generates a second brightness signal from the RGB signal; a processor configured to execute a process, the process including computing a ratio at which to combine the first brightness signal and the second brightness signal based on the RGB signal; and a combining section that combines the first brightness signal and the second brightness signal at the computed ratio.
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM
Image processing apparatuses, methods and storage mediums for use therewith are provided herein. At least one image processing apparatus includes, a first acquisition unit configured to, in order to generate a converted image having a narrower dynamic range than an input image, acquire gradation values of a plurality of neighborhood pixels positioned in a predetermined range from a processing target pixel of the input image, a second acquisition unit configured to acquire conversion information from a holding unit holding the conversion information used to generate the converted image having a narrower dynamic range than the input image, and a determination unit configured to determine a gradation value of a pixel on the converted image corresponding to the processing target pixel by using the gradation values of the plurality of neighborhood pixels acquired by the first acquisition unit and the conversion information acquired by the second acquisition unit.
CAMERA MODULE
Embodiments of the present invention provide concepts for camera modules including multiple apertures but only one image sensor for sensing light received via the multiple apertures. In particular, embodiments may provide a camera module including electrically controllable reflective components able to switch between reflective and transmissive states such that light from the apertures may be directed towards the single image sensor or not.
CAMERA MODULE
Embodiments of the present invention provide concepts for camera modules including multiple apertures but only one image sensor for sensing light received via the multiple apertures. In particular, embodiments may provide a camera module including electrically controllable reflective components able to switch between reflective and transmissive states such that light from the apertures may be directed towards the single image sensor or not.
IMAGING SENSOR AND IMAGING DEVICE
An imaging sensor includes a color filter, and DBPF that has a transmission characteristic in a visible-light band, a blocking characteristic in a first wavelength band adjacent to a long-wavelength side of the visible-light band, and a transmission characteristic in a second wavelength band that is a part of the first wavelength band. A transmission characteristic of DBPF and a transmission characteristic of each filter part of the color filter are set in such a manner that the second wavelength band of DBPF is included in a third wavelength band that is a wavelength band in which transmittance of the filter parts in colors is approximate to each other on a long-wavelength side of the visible-light band and a fourth wavelength band that is a wavelength band in which a filter part for infrared light has a transmission characteristic.
IMAGING PROCESSING DEVICE AND IMAGING PROCESSING METHOD
An imaging processing device and an imaging processing method that can solve a problem generated in visible light photographing in a case where DBPF is used instead of an infrared cut filter. An imaging sensor includes a color filter, and DBPH that has a transmission characteristic in a visible-light band, blocking characteristic in a first wavelength band adjacent to a long-wavelength side of the visible-light band, and transmission characteristic in a second wavelength band that is a part of the first wavelength band. A signal processing unit subtracts an infrared signal, which is output from an infrared pixel, from each color signal output from a pixel in each color of visible light in the imaging sensor. Here, in a case where each color signal reaches a pixel saturation level, control of performing correction in such a manner that an infrared signal subtracted from each color signal is lowered is performed.
VIDEO PROCESSING APPARATUS, VIDEO PROCESSING METHOD, AND MEDIUM
A camera microcomputer sets a gamma characteristic that suits a luminance input value/output value relationship in the entire luminance region extending from lower luminance to higher luminance of a video signal to a luminance input value/output value relationship of a referential gamma characteristic, irrespective of input dynamic range. A gamma correction processing unit performs gamma correction processing on a captured video signal in such a way as to convert the input value into the output value based on the set gamma characteristic.
ENHANCED TONE MAPPER FOR HIGH DYNAMIC RANGE IMAGES AND VIDEO
Various embodiments provide tone mapping of images and video from one dynamic range to an available dynamic range of a display device while preserving or enhancing image details. According to one embodiment, an enhanced tone mapping module is configured to decrease a luminance of an image or video from a high dynamic range to a standard dynamic range. Conversely, according to one embodiment, an enhanced inverse tone mapper to increase a luminance of an image or video from a standard dynamic range to a high dynamic range.
ENCODER, DECODER, ENCODING METHOD, DECODING METHOD, AND RECORDING MEDIUM
An encoder includes: a correction unit configured to execute gradation correction on RAW image data from an image capture element having optical black on the basis of a gamma coefficient and an optical black value of the optical black; and an encoding unit configured to encode gradation correction RAW image data that has undergone gradation correction by the correction unit.