41 results about "Gray colour" patented technology

A single crystal CVD synthetic diamond material comprising: a total as-grown nitrogen concentration equal to or greater than 5 ppm, and a uniform distribution of defects, wherein said uniform distribution of defects is defined by one or more of the following characteristics: (i) the total nitrogen concentration, when mapped by secondary ion mass spectrometry (SIMS) over an area equal to or greater than 50×50 μm using an analysis area of 10 μm or less, possesses a point-to-point variation of less than 30% of an average total nitrogen concentration value, or when mapped by SIMS over an area equal to or greater than 200×200 μm using an analysis area of 60 μm or less, possesses a point-to-point variation of less than 30% of an average total nitrogen concentration value; (ii) an as-grown nitrogen-vacancy defect (NV) concentration equal to or greater than 50 ppb as measured using 77K UV-visible absorption measurements, wherein the nitrogen-vacancy defects are uniformly distributed through the synthetic single crystal CVD diamond material such that, when excited using a 514 nm laser excitation source of spot size equal to or less than 10 μm at room temperature using a 50 mW 46 continuous wave laser, and mapped over an area equal to or greater than 50×50 μm with a data interval less than 10 μm there is a low point-to-point variation wherein the intensity area ratio of nitrogen vacancy photoluminescence peaks between regions of high photoluminescent intensity and regions of low photolominescent intensity is <2× for either the 575 nm photoluminescent peak (NV0) or the 637 nm photoluminescent peak (NV); (iii) a variation in Raman intensity such that, when excited using a 514 nm laser excitation source (resulting in a Raman peak at 552.4 nm) of spot size equal to or less than 10 μm at room temperature using a 50 mW continuous wave laser, and mapped over an area equal to or greater than 50×50 μm with a data interval less than 10 μm, there is a low point-to-point variation wherein the ratio of Raman peak areas between regions of low Raman intensity and high Raman intensity is <1.25×; (iv) an as-grown nitrogen-vacancy defect (NV) concentration equal to or greater than 50 ppb as measured using 77K UV-visible absorption measurements, wherein, when excited using a 514 nm excitation source of spot size equal to or less than 10 μm at 77K using a 50 mW continuous wave laser, gives an intensity at 575 nm corresponding to NV0 greater than 120 times a Raman intensity at 552.4 nm, and / or an intensity at 637 nm corresponding to NV− greater than 200 times the Raman intensity at 552.4 nm; (v) a single substitutional nitrogen defect (Ns) concentration equal to or greater than 5 ppm, wherein the single substitutional nitrogen defects are uniformly distributed through the synthetic single crystal CVD diamond material such that by using a 1344 cm−1 infrared absorption feature and sampling an area greater than an area of 0.5 mm2, the variation is lower than 80%, as deduced by dividing the standard deviation by the mean value; (vi) a variation in red luminescence intensity, as defined by a standard deviation divided by a mean value, is less than 15%; (vii) a mean standard deviation in neutral single substitutional nitrogen concentration of less than 80%; and (viii) a colour intensity as measured using a histogram from a microscopy image with a mean gray value of greater than 50, wherein the colour intensity is uniform through the single crystal CVD synthetic diamond material such that the variation in gray colour, as characterised by the gray value standard deviation divided by the gray value mean, is less than 40%.

What is provided herein is a novel system and method for estimating the amount of color in a document. In one embodiment, a binary CMYK input image is received. Each of the CMYK plane is received at an offset from the previous plane, i.e., the 4 planes are not received simultaneously. Each plane is divided into M×N tiles. Pixel values of all four planes are examined separately and the number of on-pixels is counted for each plane. The number of on-pixel counts for each tile are aggregated for each plane. Total on-pixel counts are used to estimate the total number of white, black, color, and gray pixel counts. The total counts for all planes are used to estimate the amount of color. A document is determined to be color if the amount of color exceeds a predetermined threshold. A color billing strategy is determined based on the estimated color amount.

The present invention suppresses a bronzing phenomenon that occurs easily in inkjet printing that uses pigment ink, and minimizes other effects on the image quality by particularly minimizing the change in gray balance. Of at least first and second achromatic inks having different densities of pigment coloring material, the amount of resin in the second achromatic ink (light gray ink) having the lowest density of coloring material is increased, and on the achromatic color axis, a specified amount of light gray ink is used up to gradations other than highlighted areas, and light gray ink is printed in scans after all the inks that include the second achromatic ink. As a result, it is possible to reduce the bronzing phenomenon.

Disclosed is an image forming apparatus including a color converter for converting cyan, magenta and yellow components of a first image signal to equivalent neutral density, calculating a first gray component from cyan, magenta and yellow components of equivalent neutral density, subtracting the first gray component from each of the cyan, magenta and yellow components of equivalent neutral density, subjecting each of the cyan, magenta and yellow components of equivalent neutral density from which the first gray component is subtracted to an inverse conversion of the equivalent neutral density conversion, and outputting a second image signal comprising cyan, magenta and yellow components which are obtained by carrying out the inverse conversion to the cyan, magenta and yellow components of equivalent neutral density from which the first gray component is subtracted, the first black component and the first gray component; an image forming section for forming an image on a paper based on the second image signal by using cyan, magenta, yellow, black and gray toners; and a controller for controlling the color converter and the image forming section.

A method and apparatus for converting a gray level of a color image are provided. The method of converting the gray level includes determining an intermediate RGB value which corresponds to an input RGB value of the color image, based on color mapping information in which target RGB values, mapped to the gray levels of the color image, are preset; determining whether the input RGB value is included in a gray region or a color region, based on a gray variation of the input RGB value; and, if the input RGB value is determined to be included in the gray region, converting the input RGB value by using the intermediate RGB value.

The invention provides a gray-tone light valve. The light valve has a gray tone in a dark state and is transparent in a bright state. The gray tone is as follows: in CIELab color coordinates, L is greater than 20 and less than 45, a is greater than -0.5 and less than 1.5, and b is greater than -2.5 and less than 2.5. The invention provides the light valve with a specific gray tone, the dark state of the light valve is gray, the bright state of the light valve is transparent, and the light valve has a middle tone-gray tone. The selectivity of the light valve is improved, and the application depth and width of the light valve are further widened.

A method of selectively distorting a human face or other subject to be filmed or photographed includes providing a reflective or transmissive medium on which is formed a color pattern of two or more colors that produces white or gray by additive mixing, the color pattern consisting of a first set of one or more colors each of whose hue is ≥300 degrees or ≤120 degrees on a standard RGB color wheel and a second set of one or more colors each of whose hue is between 120 degrees and 300 degrees, the first set of colors confined to a contiguous region of the color pattern that makes up 50% or less by area. The method further includes positioning the medium relative to a light source and the subject such that light incident on the medium is reflected or transmitted by the medium and cast upon the subject.

The method for preventing asbestos from freeing airborne particles comprises sequentially heating and the asbestos in the following surrounding temperatures values and maintaining the asbestos in these surrounding temperature values until the asbestos changes to the following corresponding colors:a) between 125° F. (52° C.) and 175° F. (79° C.) until the asbestos changes to a uniform pale russet-red color;b) between 225° F. (107° C.) and 275° F. (135° C.) until the asbestos changes to a uniform dark russet-red color;c) between 325° F. (163° C.) and 375° F. (191° C.) until the asbestos changes to a uniform dark orange color;d) between 425° F. (218° C.) and 475° F. (246° C.) until the asbestos changes to a uniform red color;e) between 525° F. (274° C.) and 575° F. (302° C.) until the asbestos changes to a uniform grey color; andf) between 625° F. (329° C.) and 675° F. (357° C.) until the asbestos changes to a uniform opaque white color.Once all the asbestos has reached an opaque white color, the surrounding temperature is decreased to an ambient temperature.

An image processing is configured to convert a color of a first object into gray having first brightness and a color of a second object into gray having second brightness lower than the first brightness by a fixed value in response to receiving color data including the first object and the second object, and output gray data based on the first brightness of gray into which the color of the first object is converted and the second brightness of gray into which the color of the second object is converted.

The present disclosure relates to a package (1) of absorbent units (5; 11), the package (1) comprising an outer enclosure (2) enclosing the absorbent units (5) and being at least partially non-opaque, wherein the outer enclosure (2) has a thickness (t) which is less than approximately 70 [mu]m, and wherein the outer enclosure (2) is at least partly of a first predetermined color (L*1; a*1; b*1) as defined in the L*a*b* color space and the absorbent units (5) are at least partly of a second predetermined color (L*2; a*2; b*2) in the L*a*b* color space as viewed through the outer enclosure (2). Furthermore, the absorbent units (5) have at least one lightly colored or light grey area (A2) and the outer enclosure (2) has a dominant area (A1) covering a substantial part of the area of the outer enclosure (2) and having a lightness value (L*) above 75, and the magnitude ([delta]E) of the color difference between the dominant area (A1) and the lightly colored or light grey area (A2) as seen through the outer enclosure (2) is less than a predetermined limit value ([delta]Emax) which is chosen so that the absorbent units (5) are generally not visible through the outer enclosure (2). The disclosure also relates to a method for manufacturing such a package (1).

A concealment substrate manufacturing process begins by printing or painting a graphic design as camouflage on substrates like mesh-textured uniforms, military equipment, Mylar thermal blanket sheets, adhesive tapes, etc. The graphic design is uniquely generated from pseudo-random noise in four overlaying color pigments that each begin as a raster of randomly generated noise in a standardized tile size. E.g., gray, green, tan, and brown colors natural for concealment applications are each masked by two-tone image contrast rasters. The four results are mixed together in groups with a monochrome mixing mask to produce a whole tile. Such concealment camouflage tile conjoins seamlessly on-edge within other arrays of identical tiles. One variation adds a distorted-grid mesh-texture overly texture to the concealment camouflage, and even a faint “watermark” related to a commercial trademark.

The invention discloses a beverage bottle cap. The beverage bottle cap comprises a bottle cap body, a color changing area is arranged on the outer surface of the bottle cap body, and the color changing area comprises a bottom layer formed by directly coating black ink on the outer surface of the bottle cap body, a color changing layer coated on the surface of the bottom layer and formed by temperature changing ink changing from black gray to blue at a certain temperature and a gloss oil protective layer coated on the surface of the color changing layer. According to the beverage bottle cap, ata specific temperature, the color changing area on the bottle cap body is changed from black gray to blue, and due to the fact that the color is obviously changed and is easy to recognize, people canconveniently recognize the temperature of a bottle wine packaged by the bottle cap body when the bottle wine is iced and cooled to the optimal drinking taste.

A method for characterizing a colour rendering reprographic apparatus for making an output colour profile comprises the steps of measuring a set of colour values, indicative of output of the colour rendering reprographic apparatus on a predetermined medium and processing these measurement data to profile data that are applicable for creating an output colour profile according to the standards of the International Colour Consortium. The processing step comprises a correction of a measured colour value with a medium compensation value that depends on the medium gray colour value at the same lightness as the measured colour value. The medium gray colour value is a value that results from the application of black colorant on the predetermined medium. The medium compensation value reduces to zero at the lightness of the predetermined medium. The effect of this processing step is that a profile is generated that gives prints that are both free of background colorant and have natural colour rendering.

The invention discloses a fruit image recognition method based on multi-task learning, which comprises the following steps of: firstly, constructing a recognition model by adopting a symmetrical encoder-decoder network structure, randomly extracting a batch of images from a fruit image data set, carrying out gray scale transformation preprocessing on each image, and inputting a gray image of the obtained image into the recognition model; completing the construction of a classification task, and then completing the construction of a coloring task by using the colored image; calculating a cross entropy loss function of an image category output value and an image category true value, calculating a mean square error loss function of a colored image and an original input image, and optimizing parameters in a network by using a weighted sum between the two functions so as to complete multi-task learning; and finally, carrying out online testing on the fruit image by utilizing the trained identification model. By adopting an encoder-decoder network structure, the classification model can extract texture and color features of fruit images at the same time, and the accuracy of fruit classification and recognition is improved.

The present invention relates to a gray light-sensitive resin composition, a color filter manufactured by using the same and a display element comprising the same. The gray light-sensitive resin composition comprises a pigment dispersion composition, an alkali soluble resin, a photopolymerization compound, a photopolymerization initiator and a solvent. The pigment dispersion composition comprises more than selected from a red pigment, a green pigment, a cyan pigment, a yellow pigment and a purple pigment and a black pigment, and is characterized by when being formed as a curing film of which the thickness is 2.5 micrometers, having a transmissivity more than 30% and less than 75% at 460-530 nm spectral wavelengths, having a transmissivity more than 20% and less than 75% at 580-620 nm spectral wavelengths, and having a transmissivity less than 20% at 690-780 nm spectral wavelengths. The gray light-sensitive resin composition of the present invention has a very excellent anti-external light reflection effect, can substitute a polarizer in the display element, and solves the problems that the high chromatic (gray) reproducibility and machinability of the conventional gray light-sensitive resin composition are insufficient.

Provided herein are aluminum alloys and aluminum sheets including alloys that have a natural dark gray color when anodized. The alloys do not require any absorptive or electrolytic coloration processseparate from the anodization process to achieve the dark gray coloration. Also provided herein are methods for making such aluminum alloys.

Two-color net for protecting fruit against damage caused by direct solar radiation and high temperatures, used in combination and / or separately, which is made with two monofilaments that are pearl, blue or grey in color with a thickness of 0.26-0.32 mm.