摘要:
An image reading apparatus includes: a light source emitting a plurality of colors; a light receiver including a plurality of pixels which receive lights of respective colors; an analog-to-digital converter which analog-to-digital converts analog signals obtained by the light receiver to obtain digital photoelectric conversion outputs, respectively; a color determining portion which receives output signals, determines whether output signals for respective colors from the same pixel are within predetermined ranges, respectively, and outputs, as dropout data, pixel position information of the pixel, the outputs signals from which are within the predetermined ranges, respectively; an image monochromating circuit which receives output signals and obtains monochrome data; a data substituting portion which receives the monochrome data, substitutes the monochrome data corresponding to the pixel position information from the color determining portion with a level at which the pixel is determined as a white level in a binarizing process.
摘要:
An image reading apparatus includes: a light source emitting a plurality of colors; a light receiver including a plurality of pixels which receive lights of respective colors; an analog-to-digital converter which analog-to-digital converts analog signals obtained by the light receiver to obtain digital photoelectric conversion outputs, respectively; a color determining portion which receives output signals, determines whether output signals for respective colors from the same pixel are within predetermined ranges, respectively, and outputs, as dropout data, pixel position information of the pixel, the outputs signals from which are within the predetermined ranges, respectively; an image monochromating circuit which receives output signals and obtains monochrome data; a data substituting portion which receives the monochrome data, substitutes the monochrome data corresponding to the pixel position information from the color determining portion with a level at which the pixel is determined as a white level in a binarizing process.
摘要:
Interpolation data for a missing pixel are obtained (4) after a correction (3) for variations in the characteristics of the imaging devices (8(1), 8(2)). The correction for variations in characteristics includes, for example, a black level correction (9) and a sensitivity correction (10). The interpolation includes, for example, interpolation calculations (14(1), 14(2)) such that a mean value of a plurality of pixels including the missing pixel and a mean value of a plurality of pixels not including the missing pixel become equal and an interpolation calculation (14(0)) that takes the mean of the pixels to the right and left of the missing pixel, the calculation with the least error being selected (13, 15). Thus missing pixels in highly periodic images can be properly interpolated, and interpolation can be performed with high precision even when there are variations in the sensitivity characteristics of the individual imaging devices constituting the contact image sensor.
摘要:
Interpolation data for a missing pixel are obtained (4) after a correction (3) for variations in the characteristics of the imaging devices (8(1), 8(2)). The correction for variations in characteristics includes, for example, a black level correction (9) and a sensitivity correction (10). The interpolation includes, for example, interpolation calculations (14(1), 14(2)) such that a mean value of a plurality of pixels including the missing pixel and a mean value of a plurality of pixels not including the missing pixel become equal and an interpolation calculation (14(0)) that takes the mean of the pixels to the right and left of the missing pixel, the calculation with the least error being selected (13, 15). Thus missing pixels in highly periodic images can be properly interpolated, and interpolation can be performed with high precision even when there are variations in the sensitivity characteristics of the individual imaging devices constituting the contact image sensor.
摘要:
A vehicle control system configured to carry out an energy saving control is provided. The vehicle control system is applied to a vehicle having an engine, a torque converter, a transmission and a clutch device selectively connecting a turbine runner to the transmission. The vehicle control system executes the energy saving control by controlling both an operating condition of the engine and an engagement condition of the clutch device or only the engagement condition of the clutch device. The vehicle control system comprises a clutch control means configured to increase the torque transmitting capacity of the clutch device using an increasing amount of a speed of the turbine runner as a target value, when bringing the clutch device into engagement being in disengagement during execution of the energy saving control.
摘要:
A light emission control device includes a partial region feature quantity detector, an enlarged region feature quantity detector, a whole screen feature quantity detector, and a light emission controller. The partial region feature quantity detector detects a feature quantity of the image as a partial region feature quantity. The enlarged region feature quantity detector defines the partial region of interest and the partial regions neighboring the partial region of interest, and detects a feature quantity of the image of the enlarged region. The whole screen feature quantity detector detects this feature quantity as a whole screen feature quantity. On the basis of the partial region feature quantity and the enlarged region feature quantity pertaining to the partial region of interest, and the whole screen feature quantity, the light emission controller controls the light emission luminance of the light emission unit corresponding to the partial region of interest.
摘要:
An intermediate image generating means (1) generates a horizontal intermediate image (D1h) and a vertical intermediate image (D1v) by extracting components of an input image (DIN) in a particular frequency band; an intermediate image processing means (2) generates a horizontal image (D2Bh) and a vertical image (D2Bv) by performing non-linear processing (2A) and high-frequency component generation (2B); an intermediate image (D2) is obtained by combining these horizontal and vertical images by performing weighted addition for each pixel and is added (3) to the input image (DIN) to obtain an enhanced output image (DOUT). Even if the input image includes a fold-over component on the high-frequency side or does not include an adequate high-frequency component, adequate image enhancement processing can be carried out.
摘要:
It is an object to provide an image processing device, an image display device, and an image processing method therefor that are capable of curbing generation of a pseudo edge in a digital image.The image processing device and the image display device are provided including a threshold-value control unit 29 that obtains a threshold value depending on a tone in image data; a smoothing filter unit 60 that applies a smoothing process to a predetermined tone in the image data while preserving, depending on the threshold value, a predetermined edge in the image data; and an output unit that outputs image data having been processed by the smoothing filter unit 60.
摘要:
To improve durability of a seal lip (4) of an oil seal (1) in slidably contact with the peripheral surface of a shaft (23), a lubricating oil supply section (11) for collecting adhered oil and dropping it on the shaft (23) is provided at a forward end portion of an installation section (2), the lubricating oil supply section (11) has projections (12) formed on the inner peripheral surface of the installation section (2) to collect oil on the surface thereof, the surface of each projection (12) has a recess (13) for temporarily accumulating oil, guidance projections, or a slope for collecting the oil, and dams are formed on a forward end face (2a) of the installation section (2) to block the oil flowing down along the circumferential direction on the forward end face (2a) and guides the oil toward each projection (12).
摘要:
An image processing apparatus receives n-bit image data, carries out an α-bit bit extension, and outputs (n+α)-bit image data, where n and α are positive integers. The apparatus also performs an epsilon filtering operation that uses the additional gray levels provided by the bit extension to smooth out false edges caused by the bit extension without smoothing out real edges. The output image preserves both the smoothness of regions of gradual change and the sharpness of abrupt changes in the input image.