183results about How to "Reduce graininess" patented technology

A recording method is provided which enables formation of an image with high image density and low graininess. The recording is conducted by using a recording method using a first aqueous ink for higher-density recording and a second aqueous ink for lower-density recording, characterized in that the first aqueous ink comprises at least water, a water-insoluble coloring material, and plurality of water-soluble organic solvents, the plurality of water-soluble organic solvents including a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, the ratio B / A in the second aqueous ink being less than the ratio B / A the first aqueous ink, where A denotes the total content (mass %) of good medium based on the total mass of the aqueous ink and B denotes the total content (mass %) of poor medium based on the total mass of the aqueous ink; and the second aqueous ink has the same hue as the first aqueous ink.

Graininess reduction processing is carried out with accuracy by finding a degree of graininess in an image. For this purpose, a parameter acquisition unit obtains a weighting parameter for a principal component representing the degree of graininess in a face region found in the image by a face detection unit, by fitting to the face region a mathematical model generated by a method of AAM using a plurality of sample images representing human faces in different degrees of graininess. A parameter changing unit changes the parameter to have a desired value. A graininess reduction unit reduces graininess of the face region according to the parameter having been changed.

A color image forming apparatus forms an image using a deep toner and a pale toner at least for one color such that the pale toner is used to form an image in a high lightness area, and the pale toner and the deep toner are used in combination to form the image in a half tone area. A toner kit has a deep toner and a pale toner which are separated from each other. A method for forming an image uses the color image forming apparatus, the toner kit, and the deep toner and the pale toner. A high quality image can be formed while inhibiting graininess and roughness over a broad image area.

The invention discloses an LED straight-tube lamp comprising a lamp tube, a lamp cap, a power source and a lamp panel, wherein the lamp cap is arranged at one end of the lamp tube; the power source is arranged in the lamp cap; the lamp panel is arranged in the lamp tube and is provided with a light source; the light source is electrically communicated with the power source through the lamp panel; and the lamp panel is a flexible circuit board of which the end part is provided with a light source pad, and holes are formed in the light source pad. The flexible circuit board is directly welded at the power output end of the lamp cap, so that the quality problem caused by conducting wire migration breakage generated by a wire bonding way in the production, transportation and use processes can be avoided.

The conductive sheet according to the present invention includes a base and a conductive portion that is formed on at least one main surface of the base and is formed from a plurality of thin metal wires, where a mesh pattern in which different mesh shapes are arrayed in plan view is formed by the conductive portion, and the mesh pattern is configured such that, in a power spectrum of a two-dimensional distribution of centroid positions of the mesh shapes, an average intensity on a higher spatial frequency band side than a predetermined spatial frequency is larger than an average intensity on a lower spatial frequency band side than the predetermined spatial frequency. The conductive sheet can reduce the granular feeling of noise due to pattern which the conductive sheet has and greatly improve the visibility of an object for observation.

An LED tube light which includes LED light sources mounted in LED leadframes is disclosed. The LED leadframe has a recess, a first sidewall and a second sidewall. Each LED light source includes an LED leadframe and an LED chip, in which LED chip is disposed in recess of LED leadframe. A height of first sidewall of LED leadframe is lower than a height of second sidewall thereof. Inner surface of the first sidewall is a sloped flat or curved surface facing towards outside the recess. First sidewalls of the LED leadframe are arranged along a length direction of the light tube, and second sidewalls of the LED leadframe are arranged along a width direction of the light tube. The LED tube light further includes an LED light bar. The LED light sources together with the LED leadframes are mounted on the LED light bar.

The present invention discloses a liquid crystal display panel, which is composed of a red pixel unit, a green pixel unit and a blue pixel unit arranged in a matrix. Each adjacent two rows of pixel units form one pixel unit group, the polarities the pixel units in the same column in the same pixel unit group are the same, and the polarities of the pixel units in the same column in the adjacent two pixel unit groups are opposite to solve the color shift problem existing in the viewing at a large viewing angle; and the polarities of the adjacent red pixel units in each row of pixel units change alternately and the polarities of the adjacent blue pixel units in each row of pixel units alternately change so as to weaken the grainy sense generated on the entire display picture and thus greatly improving the display effect. The invention also provides a liquid crystal display device with the abovementioned liquid crystal display panel.

The present invention provides: a toner kit having a deep toner and a pale toner which are separated from each other, wherein: the deep toner and the pale toner satisfy prescribed conditions for an L*a*b* color coordinate system where a* represents a hue in the red-green direction, b* represents a hue in the yellow-blue direction, and L* represents a lightness; the pale toner and the deep toner to be used in the toner kit; and a method for forming an image using the toner kit. Thus, the present invention can form a high quality image, while suppressing graininess and roughness over the areas covering from the low density area to the high density area.

Disclosed are an autostereoscopic display device and corresponding terminal equipment. The autostereoscopic display device comprises a display panel, a spectroscopic device and a directional dimmer, wherein the directional dimmer is placed between the spectroscopic device and the display panel or placed on one side of the spectroscopic device far away from the display panel, the directional dimmer comprises a plurality of dimming units for refracting light rays, and the dimming units refract a light ray to deviate from an original light path in one direction. The invention further provides the terminal equipment comprising the autostereoscopic display device. The autostereoscopic display device and the terminal equipment use the directional dimmer to refract the light entering or exiting from the spectroscopic device, Moire patterns can be effectively eliminated, and grainy is weakened.

In a matrix area, a plurality of linear areas each of which extends in a tilt direction tilted relatively to row and column directions are arranged in a direction perpendicular to the tilt direction without spaces, and the plurality of linear areas are alternatively assigned to first and second element groups along an arrangement direction. One element is specified in each element group and subsequently process of specifying an element farthest from specified elements, is repeated to acquire a turn-on order of dots with increase in gray level in one grayscale range and a turn-off order of dots with decrease in gray level in the remaining grayscale range, and a threshold value of each element is determined according to these orders. Thus, generated is a threshold matrix capable of reducing graininess in a halftone image with directionality in the tilt direction, and improving the reproduction of thin lines and characters.

To generate a threshold matrix which is compared with an original image in creating a halftone dot image for each color component, in a matrix area for one color component, dot centers are arranged almost uniformly in a random fashion at a predetermined density and in a matrix area for another color component, dot centers are arranged almost uniformly in a random fashion at a density about 0.7 times the predetermined density. Then, threshold values are set so that dots should grow around the dot centers in accordance with an increase in gray level of the original image, to generate the threshold matrix for each color component. In creating the halftone dot images by using these threshold matrixes, characteristics of spatial frequency of the halftone dot images of these color components can be represented in a frequency space as areas (75K, 75C) in a shape of concentric rings. As a result, it is possible to create a multicolor halftone dot image with less graininess, with no portions approximate to each other in the characteristics of spatial frequency of these halftone dot images.

The water-based ink set for ink-jet recording includes a cyan ink and a blue ink with dynamic surface tensions thereof satisfying the following inequalities (ICB), (IICB), (IIICB) and (IVCB) σ30C≦about 49 mN / m  (ICB) σ30C+σ30B≦about 100 mN / m  (IICB) wherein σ30C is the dynamic surface tension of the cyan ink at a lifetime of 30 ms and σ30B is the dynamic surface tension of the blue ink at a lifetime of 30 ms, σ1000B≧about 36 mN / m  (IIICB) σ1000C+σ1000B≧about 70 mN / m  (IVCB) wherein σ1000C is the dynamic surface tension of the cyan ink at a lifetime of 1,000 ms and σ1000B is the dynamic surface tension of the blue ink at a lifetime of 1,000 ms.

The invention discloses a pixel structure, a driving method thereof, a display panel and a display device. Each pixel group is divided into three columns of pixel areas, the length of sub-pixels in the first-column pixel area is greater than that of each sub-pixel in the second-column pixel area and the third-column pixel area in the column directions, the colors of any two adjacent sub-pixels inthe column and row directions in each pixel group are different, and therefore high display resolution is achieved by utilizing low physical resolution of the pixel structure. According to the pixel structure, the sawtooth and particle senses during display can be reduced because of the arrangement mode, the luminous performance of the sub-pixels different in color is fully utilized, and thereforean image is displayed more evenly.

The water-based ink set for ink-jet recording includes a magenta ink and a red ink with dynamic surface tensions thereof satisfying the following inequalities (IM), (IIM), (IIIM) and (IVM) σ30M≦about 49 mN / m   (IM) σ30M+σ30R≦about 100 mN / m   (IIM) wherein σ30M is the dynamic surface tension of the magenta ink at a lifetime of 30 ms and σ30R is the dynamic surface tension of the red ink at a lifetime of 30 ms, σ1000R≧about 36 mN / m   (IIIM) σ1000M+σ10000R≧about 70 mN / m   (IVM) wherein σ1000 M is the dynamic surface tension of the magenta ink at a lifetime of 1,000 ms and σ1000R is the dynamic surface tension of the red ink at a lifetime of 1,000 ms).

The invention discloses a weight-managing composition and a related weight-reducing meal replacement product. The weight-managing composition provided by the invention comprises 20-35 parts of soybeanprotein isolate, 15-25 parts of concentrated whey protein, 20-35 parts of dietary fiber, 0-10 parts of oligosaccharides, 0-20 parts of alditol, 5-15 parts of fish collagen peptides, 1-5 parts of soybean lecithin, 1-5 parts of konjac gum and 1-5 parts of psyllium husk powder. The weight-managing composition provided by the invention has the following beneficial effects: the weight-managing composition is capable of fortifying nutrients, increasing satiety maintenance time, effectively controlling energy intake, regulating intestinal flora and improving intestinal functions so as to finally achieve the purpose of healthy weight reduction; moreover, the fish collagen peptides, the concentrated whey protein and the soybean lecithin are used in the scheme, so that the weight-managing composition is capable of repairing fractured and aged elastic fiber nets so as to tighten the skin and increase elasticity so as to improve the phenomenon of loose and aged skin after weight loss.

Determination of an adjustment value for adjusting the shifting of recording positions is made easier. The adjustment value is one for adjusting the shifting of recording positions in the direction of main scanning when ink drops are ejected and dots formed on a print medium. Patches T21-T25 and patches T31-T35 are printed in order to determine the extent (adjustment value) to which dot formation positions are shifted on a reverse pass during bidirectional printing. Each patch is formed based on the same print data D1 related to yellow (Y), light cyan (LC), and light magenta (LM) dots. Each dot is formed on the forward and reverse passes of main scanning when the patches T21-T25 are formed. The patches are printed by varying the dot recording positions on a reverse pass in small increments. The patches T31-T35 are formed solely on the forward pass of a main scan. The extent (adjustment value) to which the timing for ejecting ink drops with minimal dot formation misalignments is shifted can be determined by selecting from the patches T21-T25 the patch whose print results are the closest to the adjacent patches T31-T35.

Threshold matrixes for a C-separation and an M-separation of main colors are used to convert a continuous-tone image subjected to color separation into dot patterns for the C-separation and the M-separation. The dot patterns are binary images in which no screen ruling or screen angle is defined. Then, a color image is reproduced by overlaying the dot patterns for the C-separation and the M-separation. When the dot patterns for the C-separation and the M-separation are converted into patterns in the frequency domain, main frequency components obtained by the conversion have a substantially-constant predetermined pattern frequency for all angles, and the intensity distribution of the main frequency components is varied based on the C-separation and the M-separation.

A water-based ink set for ink-jet recording is provided which is capable of: reducing graininess in a low-density printed part without reducing the color reproduction range in red and magenta directions in a high-density printed part; extending the color reproduction range in the red direction; improving the vividness of the red color; and improving the light fastness and gas resistance. The water-based ink set for ink-jet recording includes a magenta dye ink and a red pigment ink. The magenta dye ink is a light magenta dye ink having a lightness (L*) of about 50 or more in the L*a*b* calorimetric system.

The present invention provides a lighting device which can high efficiently extract white light and reduce granular sensation about light source. The lighting device includes: plural semiconductor luminescent components, transparence substrate, transparence bonding layer, reflection member, transparence sealing member, luminophore layer. The luminescent components has semiconductor luminescent layer on back laminated layer of transparence component substrate and extracts the light emitted from the luminescent layer. Lead (conductive portion) of the transparence substrate is connected with p side and n side electrodes of the luminescent component. The backside of the transparence substrate is bonded with surface of component substrate of each luminescent component via the bonding layer. The seal member is arranged at back side of the transparence substrate to seal the luminescent component. The reflection member covers the seal member. The luminophore layer covers the surface of the transparence substrate. The luminophore layer includes luminophore for wavelength convertion of first light emitted by the semiconductor luminescent layer to second light with different wavelength.

The water-based ink set for ink-jet recording includes a cyan ink and a blue ink, or a cyan ink and a green ink. The cyan ink is a light cyan ink having a lightness (L*) of about 60 or more in the L*a*b* colorimetric system. A normal cyan ink having a lightness (L*) of about 60 or less in the L*a*b* calorimetric system is not included in the ink set.

Printing is performed on a printing medium by using an ink-jet printhead for discharging ink, multilevel printing is performed by multipass printing operation of executing main scanning operation of moving the printhead relative to the printing medium with respect to each print area while changing the number of ink droplets discharged to each pixel, and the number of scans to be performed to discharge ink droplets used to print a pixel with a low gray level value is made larger than the number of scans to be performed to discharge ink droplets used only to print a pixel with a high gray level value, thereby preventing the occurrence of density irregularity and streaks in a low gray level portion and printing a high-quality image.

Provided are an ink jet ink set, an ink jet recording method, and an ink jet recording apparatus each of which can reduce the graininess of an image to be recorded and improve the water fastness of the image even in a recording medium such as plain paper. The ink jet ink set has a first ink and a second ink independently, and is used so that the first and second inks overlap each other at least partly upon application of the inks to a recording medium. The first ink contains at least a pigment and a silicone oil. The second ink contains at least a pigment and a graft polymer that includes at least a nonionic unit represented by the general formula (I) and a unit having a polysiloxane structure.

The image processing method and apparatus use a digital half-toning technique. The method and apparatus split a continuous tone image into split regions, compute an area size of each of the split regions and select an optimum halftone best suited to each of the split regions depending on the thus computed area size of each of the split regions. The program implements the above image processing method by control with a computer. The above program is written to the recording medium and can be read with the computer from the recording medium.

A light emitting diode (LED) display screen comprises a circuit base board, and a plurality of luminous units and a light mixing device which are connected onto the circuit base board, wherein the light mixing device is installed on the circuit base board in detachable mode, the luminous units are located between the circuit base board and the light mixing device, and the light mixing device refracts light rays sent out from the luminous units. According to the LED display screen, after the light rays sent out from the luminous units are refracted by the light mixing device, light emitting angles of the light rays, which are formed on the surface of the light mixing device, are increased, light intensity of central areas of the luminous units are weakened, and light intensity of marginal areas of the luminous units are relatively intensified. Accordingly, luminance uniformity of a frame of the LED display screen is improved, granular sensation and dazzling sensation of the frame displayed by the LED display screen are reduced, and therefore good display effects are obtained. Additionally, compared with an existing method for improving the display effects by increasing the density of the luminous units, needed display effects of the LED display screen can be achieved without need of improving circuit board configuration difficulty or increasing the quantity of the luminous units, and preparation cost of the LED display screen is reduced.

The invention discloses a method for treating a texture distortion area of a digital orthoimage. The method comprises the following steps: I, obtaining original measurement data of a measured area; II, determining a ground grid range of the digital orthoimage; III, detecting texture distortion, namely respectively performing texture distortion detection on each grid point on a corrected image of a currently treated aerial photography image through the following processes: 301, determining the direction of projection light; 302, judging texture distortion, namely judging whether other grid points identical to the pixel point to which the current detected point corresponds on an original image exist or not along the determined projection light; if so, judging the currently detected point as a 'texture distortion' point; if not, judging the currently detected point as a 'non-texture-distortion' point; and IV, correcting the image, namely correcting the currently treated aerial photography image according to the result of the texture distortion detection. The method has the advantages of simple steps, reasonable design, high efficiency and good using effect and can be used for solving the problems of low efficiency, poor use effect and the like in the existing orthoimage texture distortion treating method.