摘要:
An image of which restoration degree is determined based on the difference between each pixel and a neighboring pixel of the pixel in a light receiving element array 101 is divided into a plurality of areas based on the determined restoration degree, and the areas of the image are each restored in accordance with the determined restoration degree. By doing this, not only ringing and noise enhancement can effectively be suppressed but also the border between the areas which is conspicuous when the image is divided into two kinds of areas becomes less conspicuous, so that a natural restored image can be obtained.
摘要:
An image forming optical system comprises interchangeable lens 14 of a single lens reflex camera and reduction relay optical system 15. A three-color separating prism 16 that separates the photo image into two green photo images (G1 and G2) and a red/blue photo image (R/B) is located behind the image forming optical system, and CCDs 19 through 17 that perform image sensing as to RB, G2 and G1 photo images are located behind the transparent surfaces of prisms 16a through 16c, respectively. G1 CCD 17 and RB CCD 19 perform image sensing for the same photo image area while G2 CCD 18 performs image sensing for a photo image area which is offset by distance .sqroot. {(PH/2).sup.2 +(PV/2).sup.2 } (PH: lateral pixel pitch, PV: vertical pixel pitch) in the lower right direction relative to G1 CCD 17.
摘要:
An image acquired by an image sensor is recorded, and the blur amount of the recorded image is changed in accordance with a blur amount determined beforehand.
摘要:
An image taking apparatus includes an image sensor which picks up an image of a photographic object and a selector which selects a first photographing mode or a second photographing mode and a controller. The second photographing mode is a mode for composing a plurality of picked-up images to create a composite image. The controller makes the image sensor pickup a photographic object image on the first photographing condition when the first photographing mode is selected by the selector, and makes the image sensor pick up a plurality of images of photographic objects on the second photographing condition different from said first photographing condition when the second photographing mode is selected by the selector.
摘要:
An illumination component extractor is operable to extract an illumination component from input image data by: performing a smoothing process a certain number of times to generate a plurality of smooth image data having resolutions different from one another from the input image data, the smoothing process including an operation of filtering the input image data with use of a low-pass filter having a predetermined size and an operation of downsampling the filtered input image data; and performing an inverse-smoothing process a certain number of times, the inverse-smoothing process including an operation of replacing an edge portion of a smooth image data having a lower resolution with a smooth image data having a higher resolution, and an operation of upsampling the replaced smooth image data. The input image data is color image data which has been obtained by an image sensor including a number of pixels having different spectral sensitivities.
摘要:
An image sensing apparatus is constructed in such a manner that a calculation priority setter 5111 (5111a) sets a priority between exposure amount control by an exposure amount control parameter calculator 511 (511a) serving as exposure amount controller, and dynamic range control by a dynamic range control parameter calculator 512 (512a) serving as dynamic range controller. Exposure control is executed by performing the exposure amount control and the dynamic range control based on a photoelectric conversion characteristic, by using exposure evaluation values detected by an evaluation value detector 405, based on the priority set by the calculation priority setter 5111 (5111a). This arrangement provides an image sensing apparatus capable of performing exposure control with high latitude, wherein a user is allowed to capture a subject in an optimal exposure state, with an appropriate dynamic range being secured, and control primarily based on the exposure amount control or control primarily based on the dynamic range control is performed on the priority basis.
摘要:
When picking up an image using an image pickup device having a photoelectric conversion characteristic composed of a linear characteristic region and a logarithmic characteristic region, regardless of an image pickup mode and a recording mode, an image pickup apparatus always obtaining optimum images will be provided. An image pickup apparatus for recording any of an unprocessed image, an image subject to a predetermined image process and image compression, and an image subject to the predetermined image process, a wide dynamic range image processing, and image compression in accordance with the image pickup mode and recording mode, thereby always obtaining optimum images will be provided.
摘要:
An image sensing apparatus is provided with an image sensor having a photoelectric conversion characteristic comprised of a linear characteristic area where an electrical signal is outputted after being linearly converted in relation to an amount of an incident light and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of the incident light. An evaluation value detector of a signal processing unit detects evaluation values concerning an image sensing control from each of the linear characteristic area and the logarithmic characteristic area upon picking up an image of a subject based on pieces of subject luminance information in the respective areas. A central control unit (image sensing controller) carries out the image sensing control based on the evaluation values corresponding to the respective areas detected by the evaluation value detector.
摘要:
An electronic shutter control system provided with an imaging device, a driving circuit to drive and control the imaging device and an exposure control circuit to output a signal to the drive circuit. The shutter opens in synchronization with a signal to read out electric charge in a photoelectric converter section to a vertical transfer section. The vertical transfer section is held in a state enabling readout of the signal after cleaning out an unnecessary electric charge. As a result, an electric charge is read out simultaneously with the close of the shutter. According to an electronic shutter controlling method, fast reverse transfer is stopped at a level of the proper exposure less the predetermined amount and an electric charge signal is read out to the vertical transfer section, waiting for the potential of the vertical transfer section to achieve a state wherein it can receive the electric charge signal.
摘要:
An image sensing apparatus includes: an image sensor which generates an electrical signal commensurate with an amount of incident light, and has a photoelectric conversion characteristic comprised of a linear characteristic area where the electrical signal is outputted after being linearly converted in relation to the amount of incident light, and a logarithmic characteristic area where the electrical signal is outputted after being logarithmically converted in relation to the amount of incident light; an exposure evaluation value detector which detects an exposure evaluation value based on luminance information acquired from a subject in sensing an image of the subject; and an exposure controller which acquires a setting value for exposure based on the exposure evaluation value detected by the exposure evaluation value detector to control exposure of the image sensing apparatus, wherein the exposure controller determines a subject luminance for exposure setting based on the exposure evaluation value, and controls the exposure in such a manner that an output of the image sensor corresponding to the subject luminance for exposure setting is obtained from the linear characteristic area of the image sensor.