759 results about "Colored white" patented technology

The invention relates to the technical field of image recognition, and discloses a food freshness detection method and system based on image recognition, and the method comprises the steps: collecting an initial image, carrying out the white balance correction through a white reference card, and obtaining a corrected image with an accurate color; performing target area segmentation on the corrected image, extracting a food main area and eliminating background interference; pixel sampling is carried out on the main area image, the main area image is converted to Lab, HSV and RGB color spaces, and redness, yellowness, brightness, hue angle and red-green ratio are extracted to form a multi-dimensional color feature set; establishing a difference feature vector based on the feature set and a preset standard sample, and comparing the deviation degrees of the target food and the standard sample on the multi-dimensional color features; and finally, judging the freshness grade of the food according to the deviation degree. According to the invention, lossless and rapid food freshness grading detection is realized.

The invention discloses a backlight control method, display equipment and a computer readable storage medium, and relates to the technical field of liquid crystal display, the backlight control method is applied to a backlight system, the backlight system comprises an LED backlight source, the LED backlight source comprises a three-primary-color light-emitting source and a white light-emitting source, and the method comprises the steps of obtaining a to-be-displayed target image, determining a three-primary-color backlight gray value of the three-primary-color light emitting source based on the target image; a white backlight gray value is determined based on the three-primary-color backlight gray value, and the white backlight gray value is in positive correlation with the three-primary-color backlight gray value; and driving the three-primary-color light-emitting source to emit light based on the three-primary-color backlight gray value, and driving the white light-emitting source to emit light based on the white light-emitting source, so that the LED backlight source provides backlight. The light emitting efficiency of the backlight source is improved, and the brightness and the color gamut are considered on the basis of low energy consumption.

To provide a new application for recycled resin obtained from PET bottle caps.SOLUTION: The present disclosure relates to a multilayer molded container comprising at least: an inner layer containing a pigment 1 and a recycled resin obtained using PET bottle caps; and an outer layer containing a white pigment 2 and a resin 2.SELECTED DRAWING: None

The invention discloses a color cast correction method and device for white picture brightness compensation and a storage medium. The color cast correction method and device are used for performing dual correction on a display screen after Demura compensation is performed on the basis of a white picture. The method comprises the following steps: collecting regional images of a target screen under different exposure times, and calculating to obtain a brightness data mean value of a plurality of regional images; establishing a mapping relation according to the brightness data mean value and the actual brightness data of the regional image; calculating Euclidean distances from the centers of the plurality of regional images to the center of the target screen; constructing a brightness-exposure response function according to the mapping relation and the Euclidean distance to obtain a brightness-exposure characteristic matrix; correcting the brightness data mean value for the first time by using the brightness-exposure characteristic matrix to obtain first corrected brightness data; constructing a chromaticity-brightness correction function of each pixel point in the target screen; and correcting the first corrected brightness data for the second time by using the chroma-brightness correction function to obtain second corrected brightness data.

The utility model discloses a crystal label printer which comprises a printer main body and release paper, the printer main body is provided with a printing area for the release paper to pass through, and the printer assembly moves on the printer main body and sprays a pattern layer on the release paper. The printing vehicle assembly comprises a first spray head used for spraying a self-adhesive water layer on release paper, a second spray head used for spraying a white ink layer, a third spray head used for spraying a color ink layer, and a fourth spray head used for spraying a curing gloss oil layer and a gold stamping gloss oil layer. Two film covering assemblies are sequentially arranged at the position, located at the output end of the printing area, of the printer body and used for stamping a gold film on the gold stamping gloss oil layer and covering a release paper pattern with a positioning film after the gold film is stamped, and the gold film is stamped on the gold stamping gloss oil layer through the film covering assembly on the front side to achieve the pattern gold stamping effect. The pattern gilding effect can be achieved without secondary operation after pattern transfer printing, and meanwhile the pattern gilding area can be accurately arranged on the pattern.

The invention discloses a surgical foreign matter leaving monitoring method and device, computer equipment and a storage medium. Comprising the steps that when an operation starts, the gauze number is initialized; acquiring to-be-monitored video data; inputting into a gauze identification model to carry out gauze target identification; when the identification result is that the gauze target is identified, gauze color discrimination is carried out in a gauze color discrimination model to obtain a discrimination result; judging whether the color of the gauze target is white or not; if yes, adding one to the gauze number to update the gauze number; judging whether the current operation is finished; if yes, when the gauze quantity is not equal to zero, giving a gauze remaining alarm; if not, judging whether the color of the gauze target is red or not; if yes, subtracting one from the gauze number to update the gauze number, and judging whether the current operation is finished or not. According to the invention, automatic identification, positioning and counting of the gauze can be realized, and the gauze leaving problem in the operation process is solved.

Lighting system having visible-light source including semiconductor light-emitting devices arranged for generating plurality of visible-light emissions having range of color points including cool to very cool white color point for daytime and warm to very warm white color point for nighttime. Optical system arranged for causing some visible-light emissions to have range of beam widths including relatively wide and narrow beam widths. Mounting system causing range of beam directions. Control system causing visible-light emissions to include daytime configuration having cool to very cool white color point and relatively wide beam width, and nighttime configuration having warm to very warm white color point and relatively narrow beam width. Daytime configuration includes control system for causing visible-light emissions to include lateral- or up-light emissions, promoting relatively high equivalent melanopic lux. Nighttime configuration includes control system for causing visible-light emissions to include down-light emissions promoting relatively low equivalent melanopic lux.

The invention relates to the field of temperature-sensitive materials, in particular to a thermal management fiber membrane and a preparation method thereof. The heat management fiber membrane comprises a base body layer, a color changing layer and a color matching layer which are sequentially arranged in a stacked mode. And the matrix layer is a fiber membrane made of a spinning material. And the color-changing layer is formed by curing a water-soluble adhesive doped with thermochromic microcapsules. The thermochromic microcapsule is gradually and reversibly converted into a white state from a black state along with the rise of the temperature. And the color matching layer is formed by coating photonic crystal emulsion. The thermochromic microcapsule endows the thermal management fiber membrane with a temperature-sensitive discoloration capability so as to adjust the heat absorption and heat dissipation capability at different temperatures. The photonic crystals endow the thermal management fiber membrane with rich colors. The thermochromic microcapsule is attached to the surface of the fiber membrane through the water-soluble adhesive, so that the response speed of color change of the thermochromic microcapsule is increased, and wall material damage caused when the thermochromic microcapsule is doped in a spinning solution for spinning can be prevented, so that the performance of the thermal management fiber membrane is optimized, and the service life of the thermal management fiber membrane is prolonged.

The invention relates to the technical field of liquid crystal display, and provides liquid crystal display equipment based on a field sequence and a color image display method. White backlight is inserted in a liquid crystal response stage to reduce a color separation phenomenon, and the white backlight is inserted in the liquid crystal response stage, so that white light can be emitted at the time when the original backlight is turned off; according to the backlight module, the original backlight opening time in the color backlight stage is not occupied, so that the backlight source of the backlight module is always in the lightened state, the backlight light efficiency is improved, meanwhile, the backlight source of the backlight module can be prevented from being converted between the two light and dark states of closing and lightening, the image flickering problem is solved, and the image watching quality is improved.

The invention provides a reverse printing ink system based on a positive photosensitive mechanism and application thereof. The printing ink system comprises three types of products, namely black matte printing ink, high-reflectivity white printing ink and green printing ink, the production process of the ink system comprises the following steps: 1) synthesizing the film-forming resin; (2) sharing the film-forming resin with a pigment system, a dispersion medium and a functional additive; and 3) applying the reverse ink system to PCB manufacturing. According to the method, the characteristic of'dissolution in an exposure area 'is realized through positive light sensing, and the problems of scanning splicing printing, color difference and insufficient reflectivity in a traditional solder mask process are solved by matching with a special developing solution and a DI exposure light spot shaping technology; compared with the prior art, the reverse printing ink system has the advantages that the yellowing index, the resolution ratio, the heat resistance and the like are remarkably improved, and the reverse printing ink system is suitable for manufacturing a high-end mini LED / micro LED PCB (Printed Circuit Board).

This temperature-indicating label is provided with: a base material; an adhesive layer to be affixed to the surface of a living body; and a temperature-indicating ink layer that is positioned between the base material and the adhesive layer, and that is configured so as to change color in accordance with the temperature of the temperature-indicating ink layer. The stress at 20% stretching is 0.2 N / mm2 to 10.0 N / mm2. The thickness of the temperature-indicating ink layer is 1-9 µm. In a state in which the adhesive layer is affixed to a white plate, the color difference ΔE* ab in the L*a*b* color space between a first state in which the temperature-indicating ink layer exhibits a first color and a second state in which the temperature-indicating ink layer exhibits a second color different from the first color is greater than 10. The color change between the first color and the second color is visible via the base material.

The embodiment of the application discloses an image processing method and device, relates to the technical field of image processing, and can identify and process white bottom icons, and improves user experience. The specific scheme is as follows: color information of a picture to be rendered is acquired; the color information of the picture to be rendered comprises color categories of the picture to be rendered, color values of four corners of the picture to be rendered, a proportion of non-transparent pixels in the picture to be rendered, and a proportion of white pixels in the picture to be rendered; and based on the color information of the picture to be rendered, if it is determined that the picture to be rendered is a white bottom icon, the picture to be rendered is subjected to inverse color processing.

Disclosed are a liquid crystal fiber reinforced polyester resin composition, a preparation method therefor and a use thereof. The liquid crystal fiber reinforced polyester resin composition comprises the following components in parts by weight: 100 parts of PCT resin; 5-50 parts of white pigment; 5-30 parts of liquid crystal fiber; and 0.5-5 parts of an auxiliary agent. The fineness of the liquid crystal fiber is 900-3200 D. In the present invention, liquid crystal fibers having a specific fineness are added to a PCT resin matrix material, so that a prepared composition has relatively good strength and reflectivity, and the strength and the reflectivity remain high after SMT processing.

The present invention relates to a polymer composition comprising polypropylene and glass fibers. The polymer composition according to the present invention has a white or light color and an excellent impact resistance retention.

This invention relates to the field of image recognition technology and discloses a method and system for detecting food freshness based on image recognition. The method includes: acquiring an initial image; performing white balance correction using a white reference card to obtain a color-accurate corrected image; subsequently, segmenting the target region of the corrected image, extracting the main food region, and removing background interference; sampling pixels of the main region image and converting it to Lab, HSV, and RGB color spaces, extracting redness, yellowness, brightness, hue angle, and red-green ratio to form a multi-dimensional color feature set; establishing a difference feature vector based on this feature set and a preset standard sample, comparing the degree of deviation between the target food and the standard sample in multi-dimensional color features; and finally determining the freshness grade of the food based on the degree of deviation. This invention achieves non-destructive and rapid food freshness grading detection.

A scenario-adaptable color-changing ink and a corresponding solar glass product are provided. The ink includes 7-30 parts by weight of photopolymer, 8-20 parts by weight of photoactive monomer, 1-5 parts by weight of photosensitizer, 30-55 parts by weight of weather-resistant resin, 1-10 parts by weight of curing agent, and 1-15 parts by weight of pearlescent pigment. The pearlescent pigment is at least one interference pearlescent pigments with weather-resistance, which has no color. Each sheet of the pearlescent pigment can be considered as a miniature prism which can break the white composite light into colorful monochromatic light, thus allow the coating of the printing ink to present a beautiful pearl luster and metallic luster. The pattern color which is visible by human is a result of overlaps and interferes of lights that the incident light is multiply reflected and refracted by the sheets of transparent pearlescent pigment.

A colored bilayer sub-ambient radiative cooling coating designed to enhance solar reflectance and aesthetic coloration is introduced. The coating includes a white bottom layer containing TiO2 or ZrO2 nanoparticles, and hollow glass spheres dispersed in a polymer matrix, and a colored top layer containing SiO2 microspheres and fluorescent pigments selected from Sr2Si5N8:Eu2+, Y3A15O12:Ce3+, (Ba,Sr)SiO4:Eu2+, or SrO·Al2O3:Eu phosphors dispersed in a polymer matrix. This bilayer structure achieves an effective solar reflectance of at least 90% and reduces surface temperature by at least 3° C. compared to ambient air, providing energy-efficient cooling with aesthetic appeal.

To provide a printing system that can suppress a color of a medium from changing hue of an image, while suppressing white ink from being used.SOLUTION: A printing system comprises a discharge part that discharges color ink and white ink to a medium, and a control part that controls the discharge part. The printing system obtains image data, information on colors of the medium and information on a density of white ink. The control part calculates a masking ratio of the medium on the basis of the information on colors of the medium and the density of the while ink, calculates adhesion amounts of white ink that are necessary for masking the medium on the basis of the calculated masking ratio, reads out an image parameter describe below in the image data, performs threshold determination of the read image parameter, and adjusts the adhesion amounts of white ink on the basis of the determined result. One or more image parameters are selected from adhesion amounts of color ink and color data that can be measured with a measurement instrument.SELECTED DRAWING: Figure 1

The invention relates to a method for color control of a printing press (3) for a printing job on a non-white printing substrate by means of a computer (4), wherein, for carrying out the printing job, the printing press (3) first undercoats the printing substrate with an opaque white color and subsequently applies the actual printing color to the undercoat, wherein the color control with regard to the application of the opaque white color and the application of the printing color is calibrated by means of a computer-supported analysis of at least one test sample (8, 9) which is printed, characterized in that, within the calibration scope of the color control, the computer (4) optimizes the application of the opaque white color and the application of the printing color in accordance with the color values (7) of the non-white printing substrate.

The invention relates to the technical field of infrared camouflage coatings, in particular to a single-component sea gray water-based camouflage coating and a preparation method thereof. The invention discloses a single-component sea gray water-based camouflage coating and a preparation method thereof, a white pigment of the camouflage coating uses infrared reflection titanium dioxide to replace part of conventional titanium dioxide, so that not only is the color displayed in a visible light region ensured, but also the reflectivity to sunlight in the visible light region and a near-infrared light region is improved; and the thermal radiation energy can be controlled from the temperature, so that the infrared emissivity is reduced. The inorganic pigment paste with different components and concentrations is used for toning, so that the coating can better adapt to the requirement of rich colors in different environments, not only has excellent aesthetic feeling in appearance, but also can meet the requirement of visible light camouflage compatibility visually.

The present application relates to a kind of compositions that can be engraved with high surface hardness white mark and its preparation method and application.The compositions that can be engraved with high surface hardness white mark include polymethyl methacrylate, styrene-acrylonitrile copolymer, acrylate rubber and black and white laser marking agent.The compositions that can be engraved with high surface hardness white mark provided by the present application are black and white after laser, and the white mark obtained has the same surface hardness as the composition before engraving, showing excellent scratch resistance.

1. The name of the design product: packaging box. 2. The use of the design product: used for the outer packaging box of implantable instrument product. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: the white square in the front view of design 1, the back view of design 1, the perspective view of design 1 and the expanded state view of design 1 is the reserved trademark setting area; the white square in the front view of design 2, the back view of design 2 and the perspective view of design 2 is the reserved trademark setting area; the white square in the front view of design 3, the back view of design 3 and the perspective view of design 3 is the reserved trademark setting area.

An ink includes: a white pigment formed of titanium oxide; a resin binder; a surfactant having an HLB value of 10 or more; and water. In this ink, by blending the resin binder, it is possible to improve the adhesion of a white image to a recording medium. Further, in this ink, by blending a surfactant having an HLB value of 10 or more, high dispersibility of the white pigment formed of titanium oxide in an aqueous solvent is achieved and the dispersed state of the white pigment in the aqueous solvent is easily maintained for a long period of time.

1. The name of the design product: white smoke elimination equipment (magnetic energy white elimination). 2. The use of the design product: separate the fine droplets and particulate matters in the flue gas, thereby achieving the effect of reducing the white smoke plume in flue gas emission. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The bottom surface of the design product is the part that is not easy to see or cannot be seen during use, and the top view is omitted.

The present invention relates to a polyamide-based composition comprising, based on the total weight of the polyamide-based composition, from 30% to 84.9% by weight of (A) at least one semi-aromatic polyamide, from 15% to 40% by weight of (B) at least one white pigment and from 0.1% to 30% by weight of (C) at least one crystalline whisker, the mass ratio of the white pigment to the crystalline whisker being from 7 to 1: 1.

The application discloses a double-color injection molding IML forming process with a character pattern suspended in a middle layer, breaks through the bottleneck that a traditional suspended pattern needs to be printed on the back of a transparent piece and limits the back structure design. By silk-screening a character pattern on the front of a PC film piece, covering a non-character area with a black primer and filling a high-transmittance white ink, and setting a precise positioning hole and structure in the back black area, the pattern suspension three-dimensional effect is realized, and interference with the appearance of the product is avoided; in combination with a double-color transparent injection molding process, a first layer of transparent PMMA material is injected and fused and solidified with the character area, and a second layer is injected at the bottom of the transparent film piece, so that the character is suspended in the transparent interlayer, and visual impact is achieved.