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39 results about "Color factor" patented technology

Method and device for identifying signal light

The invention discloses a method and device for identifying a signal light. The method for identifying the signal light includes the following steps: a, extracting candidate luminance pixels and candidate color pixels from a traffic information image, wherein the color of the candidate color pixels is red or yellow or green; b, confirming judgment areas with the candidate luminance pixels as centers, counting the number of the candidate color pixels in the judgment areas and confirming the corresponding color of the candidate color pixels in the judgment areas, c, confirming the color of the signal lights which are represented by the candidate luminance pixels according to the number and the color of the candidate color pixels, d, aiming at the types of the different signal lights, confirming candidate areas according to the positions of the candidate luminance pixels and the color of the signal lights which are represented by the candidate luminance pixels, and judging whether the candidate areas are the signal lights through a shape detection method. By means of the method for identifying the signal light, the signal light candidate areas are confirmed with the combination of luminance factors and color factors, the number of finally confirmed candidate areas is reduced, the confirming accuracy of the candidate areas is improved, and thus the processing speed and accuracy of the follow-up shape detection process are improved.
Owner:NEUSOFT REACH AUTOMOTIVE TECH SHANGHAI CO LTD

Method for detecting color cast of video image based on Lab chrominance space

The invention relates to a method for detecting the color cast of a video image based on Lab chrominance space. The method comprises the following steps: a) converting RGB (Red Green Blue) color space into the Lab chrominance space; b) calculating color cast factors. The invention provides a new color cast detecting factor, which is successively used for detecting the color cast of the image. First, the image is converted from the original RGB color space into the Lab chrominance space; then according to the distinction of the spatial gray level histogram distribution of a chrominance and b chrominance between a normal image without color cast and an abnormal image with color cast, the mean value of the spatial gray level histogram distribution of the a chrominance and the b chrominance are respectively calculated; then according to the statistical distribution between the mean value and the mid value of histograms, the color factors are calculated. A lot of experiments of real street view image databases prove that the new color cast detecting factor disclosed by the invention can really reflect the degree of color cast of images so as to complete color cast detection. The method has the advantages of high detection speed and accurate precision.
Owner:湖南乐泊科技有限公司

Video image off-color detection method based on Lab space and correlation function

The invention disclose a video image off-color detection method based on a Lab space and a correlation function. The method comprises the following steps: 1), obtaining two adjacent frames of an image of a detection video; 2), performing conversion from an RGB space to the Lab space; 3), correspondingly dividing the image into sub-blocks; 4), calculating variances and correlations of the corresponding sub-blocks; 5), calculating aberrations of the corresponding sub-blocks; and 6), solving off-color factors by combining correlation coefficients with the aberrations, and making a comparison with a set threshold so as to determine whether an off-color phenomenon exists. The video image off-color detection method based on the Lab space and the correlation function has the advantages of good uniformity, quite low equipment reliance, good applicability, and higher reliability and accuracy.
Owner:ENJOYOR COMPANY LIMITED

Image display method

An image display method including following steps is provided. A backlight of a display panel is adaptively adjusted according to a backlight adjustment factor related to the intensity value of an external light and the brightness of an original image. Brightness factors of the original image are corrected according to the adjustment of the backlight, and the original image is reset by using the corrected brightness factors and original color factors. Thereby, the problem of image distortion caused by backlight adjustment can be reduced.
Owner:WINTEK CORP

Apparatus and method for adjusting saturation image

A method for adjusting a degree of saturation of a target pixel is provided. In a first color space, the target pixel is represented by a brightness factor and a set of color factors. Based on the set of color factors, the method first generates an original saturation and a hue factor. Then, selectively according to the brightness factor, the hue factor, and the original saturation, an adjusting gain is generated. The method, according to this invention, multiplies the original saturation by the adjusting gain to generate a new saturation for the target pixel.
Owner:MARKETECH INT

Cross color-resistant color capturing piece and preparation method thereof

The invention relates to the technical field of a cross color-resistant product, and in particular relates to a cross color-resistant color capturing piece which comprises a carrier piece and a color capturing factor attached onto the carrier piece, wherein the mass fractions of the carrier piece and the color capturing factor are 97-99% and 1-3%; and the carrier piece is dust-free paper or non-woven fabrics, and the color capturing factor is poly-dimethyl diallyl ammonium chloride. After the cross color-resistant color capturing piece is adopted, the color capturing factor having ultrahigh color absorbing capability and color factor locking capability can be attached and added onto the carrier piece, and the color factor faded by washing the fabrics can be fixed, so that fabrics with the other different colors can not be polluted again, and the quality and the level of the product can be guaranteed. Meanwhile, the invention further discloses a preparation method of the cross color-resistant color capturing piece, and the preparation method is simple in technology and high in operability.
Owner:宁波一壶家化科技有限公司

Image display method

InactiveCN101887692AReduce power consumptionReduced Contrast Distortion Consequential IssuesBatteries circuit arrangementsStatic indicating devicesLightnessDistortion
The invention discloses an image display method. The image display method comprises the following steps of: flexibly regulating backlight of a display panel by using backlight regulatory factors related to strength of external light and brightness of an original image; correcting brightness factors in the original image by matching regulation of the backlight; and resetting the original image by using the corrected brightness factors and original color factors. Therefore, the problem of image distortion caused by the regulation of the backlight is solved.
Owner:WINTEK CORP

Polysulfone compositions exhibiting very low color and high light transmittance properties and articles made therefrom

A polysulfone composition is provided having a total luminous light transmittance of 84% or greater when measured on 0.1 inch thick specimens using ASTM D-1003. The specimens also meet at least one of the following two conditions: 1) a yellowness index (YI) of less than about 5.0 as measured according to ASTM D-1925 on 0.1 inch thick specimens, or 2) a color factor (CF) of less than about 25, wherein CF is defined by the following equation:CF=270[(x+y)sample−(x+y)air] / twherein x and y are chromaticity coordinates measured in transmittance mode and t is sample thickness in inches. Another polysulfone composition is provided comprising a polysulfone, an organic phosphorous-containing melt stabilizer, and at least one of the following additives: a blue to violet dye, and an organic optical brightener. The polysulfone composition of the present invention is used to form transparent molded articles such as ophthalmic lenses.
Owner:SOLVAY ADVANCED POLYMERS LLC

Polysulfone compositions exhibiting very low color and high light transmittance properties and articles made therefrom

A polysulfone composition is provided having a total luminous light transmittance of 84 % or greater when measured on 0.1 inch thick specimens using ASTM D-1003. The specimens also meet at least one of the following two conditions: 1) a yellowness index (YI) of less than about 5.0 as measured according to ASTM D-1925 on 0.1 inch thick specimens, or 2) a color factor (CF) of less than about 25, wherein CF is defined by the following equation: CF=270[(x+y)sample−(x+y)air] / t, wherein x and y are chromaticity coordinates measured in transmittance mode and t is sample thickness in inches. Another polysulfone composition is provided comprising a polysulfone, an organic phosphorous-containing melt stabilizer, and at least one of the following additives: a blue to violet dye, and an organic optical brightener. The polysulfone composition of the present invention is used to form transparent molded articles such as ophthalmic lenses.
Owner:SOLVAY ADVANCED POLYMERS LLC

Liquid crystal display having image edge enhancement circuit and image edge enhancement method for same

An exemplary liquid crystal display (200) includes a data circuit (230), a timing control and video output unit (210). The timing control and video output unit includes an image edge enhancement circuit (211) configured for sharpening at least one edge of an image shown by the liquid crystal display, and a converter (212). The image edge enhancement circuit includes a color adjusting unit (214) and a brightness comparison unit (213). The color adjusting unit configured for receiving and adjusting Cb, Cr color factors of the YCbCr image signals according to a result of comparison of brightness factors Y of the YCbCr image signals received from the brightness comparison unit. The adjusted YCbCr image signal is converted to a corresponding RGB signals by the converter circuit and the RGB signals are sent to the data driving circuit.
Owner:INNOLUX CORP

Object image relighting method based on block-matching transformation and color transfer

The invention provides an object image relighting method based on block-matching transformation and color transfer. A block-matching algorithm and a color transformation algorithm are combined with local and global lighting transfer models; on the premise of keeping the lighting condition of a reference image constant, the color of the reference image is changed by the color transformation algorithm, so that the color of the reference image is consistent with the color of an input image; and since colors have relatively great influences on image lighting transfer, the influences of the colors on later lighting transfer processing can be lowered greatly in the above way. After the influences of color factors on results are lowered greatly, the reference image is deformed by the block-matching algorithm, so that the shape of the reference image is matched with an object in the input image. Finally, the input image and the transformed reference image are subjected to lighting transfer through local and global affine transformation, so that relighting of the input image is finished. The method is very easy to implement through software, and can be popularized and applied to a wide variety of fields such as computer vision, visual design, digital entertainment and film producing.
Owner:BEIJING ELECTRONICS SCI & TECH INST

Device and method for generating phosphene for simulating prothetic vision

InactiveCN101690687AAdd twist distributionIncrease miss rateEye treatmentPhospheneMiss rate
The invention provides a device and a method for generating phosphene for simulating prothetic vision. The device comprises an image supply module, a phosphene processing module and an image display module, wherein the image supply module is connected with the phosphene processing module to transmit external image information; and the phosphene processing module and the image display module are connected to transmit phosphene adjustment image information. The method for generating the phosphene comprises: inputting the image, preprocessing the image, blocking and dividing entropy intervals, selecting phosphene array distribution for each entropy interval, adjusting the point miss rate of phosphene arrays, setting parameters for each phosphene point, and displaying the image. In the invention, the shape, size, contract, frequency and color factors are taken into consideration in the setting of the parameters for the phosphene respectively, the setting of tortuous distribution of a phosphene queue and the miss rate of the phosphene points is adopted, different parameter settings are adopted for the intervals by separating the entropy intervals of the image, the finally obtain simulation result is closer to actual conditions, and the need for multi-parameter experiment is satisfied.
Owner:SHANGHAI JIAO TONG UNIV

Wood-bar pencil and its production method

The invention discloses a pole pencil which includes the pencil core and the body. The body is made by the laminated wooden veneer of 0.-2.5mm thickness and colorated by the color factor. The invention has provided the utilization ratio of the wood, the pencil is easy to cut. The pencil can appear many colors after cutting. The invention also opened the process of it.
Owner:敦化市金海木业有限公司

Cigar coated tobacco leaf sorting method

ActiveCN108433167AOvercome the effects of color changesAvoid wastingTobacco preparationEngineeringColor factor
The invention relates to a cigar coated tobacco leaf sorting method in the field of tobacco. The method comprises two sorting operations, first sorting is conducted according to the quality factor oftobacco leaves, and tobacco leaf areas are divided into two or more quality grades; second sorting sorts the tobacco leaves of each quality grade according to color factors, and the tobacco leaf areasof each grade are divided into two or more color types. The first sorting is divided by quality characteristics and use value of the tobacco leaves, improves the labor efficiency, and solves the problems of excessive number of grades of coated tobacco leaves in the production and sale process of the cigar coated tobacco leaves, the difficulty in trading and transferring caused by few commercial products and the like, and the second sorting allows the cigarette industry to better satisfy the preference of different consumers for different cigar colors, reduces the cost of secondary grading andmeets the market demand.
Owner:中国烟草总公司海南省公司

Interactive harmonious color matching method

The invention discloses a harmonious color matching scheme generation method based on the graph interaction technology. According to the method, on the basis of the HSL color space, three factor parameters which include the hue, the purity and the lightness of each color for forming the color matching schemes are stipulated to respectively meet two principles, namely, the familial principle and the equidistance gradient comparison principle. According to the principles, all the color matching schemes generated according to the method can conform to the color harmony law, and the harmonious degrees of the color matching schemes are ensured. The method is implemented through interaction color scheme generation tools. A user adjusts parameters on the hue axis, the purity axis and the lightness axis through a graph interface so as to form a color factor combination method conforming to the principles, and the harmonious color matching scheme meeting the requirement of the user is generated in real time through a system. Parameter values of all colors of the color matching schemes are provided through the system at the same time, and the real-time pattern coloring review function is achieved through the system. The harmonious color matching scheme generation method has the advantages of being visible in interaction interface, simple in working procedure, efficient in color relation editing method, stable in color harmonious degree and the like.
Owner:CHINA ACAD OF ART

Image display method

An image display method including following steps is provided. A backlight of a display panel is adaptively adjusted according to a backlight adjustment factor related to the intensity value of an external light and the brightness of an original image. Brightness factors of the original image are corrected according to the adjustment of the backlight, and the original image is reset by using the corrected brightness factors and original color factors. Thereby, the problem of image distortion caused by backlight adjustment can be reduced.
Owner:WINTEK CORP

Fruit segmentation method based on sparse convolution kernel

The invention discloses a fruit segmentation method based on a sparse convolution kernel. According to the invention, the method comprises the steps: analyzing the distinction degree of a main objectin a fruit image under different color factors; selecting an appropriate color channel to reconstruct an image, and then proposing a sparse convolution kernel construction mode that elements are spaced from one another and are not adjacent to one another, and determining elements in a sparse convolution kernel by adopting a linear classifier; and finally performing convolution operation on the reconstructed image by adopting the sparse convolution kernel, so fruit segmentation is realized.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY

A signal light identification method and device

The invention discloses a method and device for identifying a signal light. The method for identifying the signal light includes the following steps: a, extracting candidate luminance pixels and candidate color pixels from a traffic information image, wherein the color of the candidate color pixels is red or yellow or green; b, confirming judgment areas with the candidate luminance pixels as centers, counting the number of the candidate color pixels in the judgment areas and confirming the corresponding color of the candidate color pixels in the judgment areas, c, confirming the color of the signal lights which are represented by the candidate luminance pixels according to the number and the color of the candidate color pixels, d, aiming at the types of the different signal lights, confirming candidate areas according to the positions of the candidate luminance pixels and the color of the signal lights which are represented by the candidate luminance pixels, and judging whether the candidate areas are the signal lights through a shape detection method. By means of the method for identifying the signal light, the signal light candidate areas are confirmed with the combination of luminance factors and color factors, the number of finally confirmed candidate areas is reduced, the confirming accuracy of the candidate areas is improved, and thus the processing speed and accuracy of the follow-up shape detection process are improved.
Owner:NEUSOFT REACH AUTOMOTIVE TECH SHANGHAI CO LTD

Color cast detection method of video image based on lab chromaticity space

The invention relates to a method for detecting the color cast of a video image based on Lab chrominance space. The method comprises the following steps: a) converting RGB (Red Green Blue) color space into the Lab chrominance space; b) calculating color cast factors. The invention provides a new color cast detecting factor, which is successively used for detecting the color cast of the image. First, the image is converted from the original RGB color space into the Lab chrominance space; then according to the distinction of the spatial gray level histogram distribution of a chrominance and b chrominance between a normal image without color cast and an abnormal image with color cast, the mean value of the spatial gray level histogram distribution of the a chrominance and the b chrominance are respectively calculated; then according to the statistical distribution between the mean value and the mid value of histograms, the color factors are calculated. A lot of experiments of real street view image databases prove that the new color cast detecting factor disclosed by the invention can really reflect the degree of color cast of images so as to complete color cast detection. The method has the advantages of high detection speed and accurate precision.
Owner:湖南乐泊科技有限公司

Image gain device for domestic somatic game machine

The invention discloses an image gain device for a domestic somatic game machine. The image gain device comprises a plastic shell, a power control switch, power jacks and auxiliary radiating holes. The power control switch is arranged on the upper side of the plastic shell, the power jacks are arranged on the upper side of the plastic shell, the auxiliary radiating holes are formed in the upper side of the plastic shell, a display VGA (video graphics array) interface is arranged above the auxiliary radiating holes, audio interfaces are arranged on the upper side of the plastic shell, optical fiber connectors are arranged on the upper side of the plastic shell, a lateral end cover is arranged on the upper side of the plastic shell, radiating fins are arranged above the lateral end cover, and a signal transmission indicator lamp is arranged on the upper side of the plastic shell. The image gain device has the advantages that the image gain device is simple in structure, pictures on the somatic game machine can be filtered and screened in a multilayer manner, real color factors can be compensated according to computation, accordingly, the game pictures which are projected onto a screen have full colors and are high in fluency, and the sensory experience can be improved for people.
Owner:CHENGDU LONGTENG ZHONGYUAN INFORMATION TECHCO

Method and system for simulating atmosphere

The embodiment of the invention discloses a method and system for simulating the atmosphere. The method comprises the following steps: the initial color of a collection point in the atmosphere is obtained; a color factor is generated according to an RGB (red green blue) value of the initial color; a first intersection point and a second intersection point are obtained; a color imitating factor is generated according to a point of sight, the collection point, the first intersection point and the second intersection point; the imitated color of the collection point is generated according to the initial color, the color factor and the color imitating factor; and the imitated color is filled in the collection point. According to the embodiment of the invention, the imitated color is generated by calculating the color imitating factor of the atmosphere collection point in a geography atmosphere model, the color of the atmosphere is simulated efficiently in real time, and a better rendering effect is obtained.
Owner:北京锦颂创逸技术科技有限公司

Tea tree tender shoot intelligent identification method based on factor iteration

The invention discloses a tea tree tender shoot intelligent identification method based on factor iteration. The tea tree tender shoot intelligent identification method comprises the following steps:collecting color images; setting three component relational expressions R, G and B; selecting a value range of parameters; setting a parameter iteration step length; setting an evaluation standard forparameters matching conditions; selecting an iteration area; performing iterative computation; determining a color factor; performing image segmentation on an original tea tree image; and performingarea filtering. According to the tea tree tender shoot intelligent identification method, the tender shoots can be well segmented from the complex background; a large number of experiments show that the color factor provided by the invention has stronger universality for tea leaves of different varieties and different regions, and meanwhile, has better adaptability for the change of illumination intensity; and the tender shoot recognition algorithm provided by the invention has obvious superiority, high recognition rate and short operation time compared with previous research methods of others.
Owner:NANJING FORESTRY UNIV

A light source spectrum optimization method based on cam02-ucs color appearance model

The invention provides a light source spectral optimization method based on a CAM02-UCS color appearance model, and the method comprises the following steps of firstly establishing an imaging model, calculating an original pixel value of the image, and detecting the coordinates of pixel points in a target area by using a significance detection method; mapping the detected pixel point set of the target area into a CAM02-UCS color appearance model, establishing a target function of a maximized chromatic aberration, and optimizing the target function with the genetic algorithm to obtain a pixel value of the maximized chromatic aberration; and obtaining the optimal light source spectral power according to the pixel value. The light source spectral optimization method based on the CAM02-UCS color appearance model provided by the invention has the beneficial effects that the technical solution proposed by the invention can intuitively see the effect of light source optimization by optimizinglight source spectrum to change two important visual color factors of chroma and hue, combined with the LED light source spectral model and optimization algorithm, and the intuitive description method of the color gamut model.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Wave color factor detection method and application

The invention belongs to the technical field of analysis and detection, and particularly discloses a wave color factor detection method and application of the wave color factor detection method. According to the method, the sample treatment mode and the detection means are optimized aiming at the detection of the glassine small molecules, and the efficient detection of the glassine small molecules is realized through the nano-matrix pretreatment co-crystallization and the MALDI-TOF MS detection means. According to the method, consumption of a large number of samples can be avoided, and repeated detection can be carried out; the molecular mass spectrum result obtained through detection can directly give clear glass color peak appearance information, and the purity of the sample can be clearly judged through the single peak shape.
Owner:BIOISLAND LAB +1

A Relighting Method of Object Image Based on Block Matching Warping and Color Migration

The invention provides an object image relighting method based on block-matching transformation and color transfer. A block-matching algorithm and a color transformation algorithm are combined with local and global lighting transfer models; on the premise of keeping the lighting condition of a reference image constant, the color of the reference image is changed by the color transformation algorithm, so that the color of the reference image is consistent with the color of an input image; and since colors have relatively great influences on image lighting transfer, the influences of the colors on later lighting transfer processing can be lowered greatly in the above way. After the influences of color factors on results are lowered greatly, the reference image is deformed by the block-matching algorithm, so that the shape of the reference image is matched with an object in the input image. Finally, the input image and the transformed reference image are subjected to lighting transfer through local and global affine transformation, so that relighting of the input image is finished. The method is very easy to implement through software, and can be popularized and applied to a wide variety of fields such as computer vision, visual design, digital entertainment and film producing.
Owner:BEIJING ELECTRONICS SCI & TECH INST

A method and system for simulating the atmosphere

The embodiment of the invention discloses a method and system for simulating the atmosphere. The method comprises the following steps: the initial color of a collection point in the atmosphere is obtained; a color factor is generated according to an RGB (red green blue) value of the initial color; a first intersection point and a second intersection point are obtained; a color imitating factor is generated according to a point of sight, the collection point, the first intersection point and the second intersection point; the imitated color of the collection point is generated according to the initial color, the color factor and the color imitating factor; and the imitated color is filled in the collection point. According to the embodiment of the invention, the imitated color is generated by calculating the color imitating factor of the atmosphere collection point in a geography atmosphere model, the color of the atmosphere is simulated efficiently in real time, and a better rendering effect is obtained.
Owner:北京锦颂创逸技术科技有限公司

Cross color-resistant color capturing piece and preparation method thereof

The invention relates to the technical field of a cross color-resistant product, and in particular relates to a cross color-resistant color capturing piece which comprises a carrier piece and a color capturing factor attached onto the carrier piece, wherein the mass fractions of the carrier piece and the color capturing factor are 97-99% and 1-3%; and the carrier piece is dust-free paper or non-woven fabrics, and the color capturing factor is poly-dimethyl diallyl ammonium chloride. After the cross color-resistant color capturing piece is adopted, the color capturing factor having ultrahigh color absorbing capability and color factor locking capability can be attached and added onto the carrier piece, and the color factor faded by washing the fabrics can be fixed, so that fabrics with the other different colors can not be polluted again, and the quality and the level of the product can be guaranteed. Meanwhile, the invention further discloses a preparation method of the cross color-resistant color capturing piece, and the preparation method is simple in technology and high in operability.
Owner:宁波一壶家化科技有限公司

Image display method

The invention discloses an image display method. The image display method comprises the following steps of: flexibly regulating backlight of a display panel by using backlight regulatory factors related to strength of external light and brightness of an original image; correcting brightness factors in the original image by matching regulation of the backlight; and resetting the original image by using the corrected brightness factors and original color factors. Therefore, the problem of image distortion caused by the regulation of the backlight is solved.
Owner:WINTEK CORP
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