129results about How to "High color contrast" patented technology

This invention discloses a display apparatus capable of adjusting gamma and brightness based on ambient light and its display adjustment method. The display apparatus is adjusted to display an image output signal based on an image input signal and the correlated color temperature and brightness of an ambient light. The display apparatus includes a plurality of light sensing circuits, a memory unit, an image processing module, and a display module. The light sensing circuit senses the ambient light to produce a digital ambient color temperature index value. The memory unit stores a lookup table of brightness expression rates and gamma adjustment parameters corresponding to different color temperature index values. The image processing module produces a gamma adjustment parameter by a lookup table based on the color temperature index value and generates the gamma expression rate of the image input signal. The image processing module adjusts the image input signal to generate the image output signal based on the gamma adjustment parameter. The display module displays the image output signal.

An optical system for providing a viewer with contrast between a golf ball and its environment, including a light filter and at least one polarizer mounted in a viewing device. The light filter has no more than about 20% transmittance of light in one of the range of wavelengths of from about 500 nm to about 700 nm. The viewing device allows for the light filter and the polarizer to be arranged in front of at least one eye of the viewer. The optical system can be provided in a spotting scope, a pair of eyeglasses or an attachment to eyeglasses for ease of use.

This invention provides an electrochromic device which has superior coloration repeat properties, high light transmittance and small thickness. A film is provided comprising a first electrode and second electrode in the same plane, and an electrochromic region and electrolyte region laminated in this plane. The electrochromic region is provided on the second electrode, the electrolyte region is provided on the first electrode, and the boundary between the electrochromic region and electrolyte region lies in the planar direction of the film.

The inspecting apparatus according to the present invention includes an illuminator for emitting radiation onto a substrate having a surface on which a fine feature pattern is formed. Inspection for defects in the pattern is performed by visually inspecting radiation diffracted by the surface. The illuminator provides radiation including two different complementary colors.

The invention provides a liquid crystal display and a liquid crystal display module thereof. The liquid crystal display module comprises a backlight unit, a liquid crystal display panel and a quantum rod membrane arranged between the backlight unit and the liquid crystal display panel. The liquid crystal display panel comprises an upper substrate, a lower substrate and an upper polaroid. The portion between the upper substrate and the lower substrate is filled with liquid crystals. The upper polaroid is arranged on the outer side of the upper substrate, namely the light-emitting side of the liquid crystal display panel. The quantum rod membrane is specifically arranged between the lower substrate and the backlight unit. Due to the fact that a quantum rod capable of transmitting polarized light is adopted for the liquid crystal display module to replace a traditional color filter or a prism film assembly and a lower polaroid, the purposes of high color contrast, high colour saturation, low power consumption and the low cost of the liquid crystal display are achieved.

This invention relates to a photosensitive element for use as a flexographic printing plate and a process for preparing the plate from the element. The photosensitive element has at least one photopolymerizable elastomeric layer that comprises a binder, a monomer, a photoinitiator, an onium salt, and a leuco dye. Upon exposure to actinic radiation, the onium salt and leuco dye react resulting in a change of color in polymerized portions of the photopolymerizable layer. The color change provides enhanced image color contrast in the photosensitive element.

A color contrast enhancing lens made from adhering two different lenses and a membrane together. It includes a color enhancing lens whose specific component will selectively absorb the yellow light in the visible spectrum, which enhances the user vision by enhancing the distinction between red and green. It also includes an ultraviolet blocking lens whose special compounds will absorb the majority of violet light and a part of blue light. It also includes a light polarization membrane whose special structure can reduce strong light. After the lens is formed by using adhesive, it can selectively absorb the yellow light in the visible spectrum, which enhances the user vision by enhancing the distinction between red and green. It can also absorb the majority of violet light and keep a low transmittance of blue light, thus reduced the retina injury caused by overexposure to blue light. It can also block the invisible ultraviolet and reduce strong light. So while the users' eyes are protected, they can also enjoy their view.

The invention provides a manufacturing method of a color filter. The method comprises a step of forming a black matrix and a step of sequentially forming a first color filter layer, a second color filter layer and a third color filter layer, wherein the first color filter layer, the second color filter layer and the third color filter layer are formed in the black matrix respectively through a first color filter layer alignment mark, a second color filter layer alignment mark and a third color filter layer alignment mark; and in the step of forming the first color filter layer, the second color filter layer and the third color filter layer, the third color filter layer alignment mark is formed at the same time or after the first color filter layer is formed, and the first color filter layer alignment mark, the second color filter layer alignment mark and the third color filter layer alignment mark are not exactly same in color. According to manufacturing method of the color filter, the accuracy of alignment identification of exposure equipment in an exposure process in an exposure step is improved, and the occurrence of a phenomenon that the exposure equipment is difficult to acquire the third color filter layer alignment mark can be avoided, so that the production time is greatly saved, and the production cost is reduced.

The invention discloses a color changing promoter composition. The color changing promoter composition is prepared from the following components in parts by weight: 5.0-40 parts of a mixture, 0.2-10.0 parts of a compatibilizer and 50.0-94.8 parts of a carrier polymer, wherein the mixture is prepared from the following components in parts by weight: 0.3-10.0 parts of metal powder, 60.0-75.0 parts of a metal oxide and 10.0-39.6 parts of a thermoplastic polymer. The novel color changing promoter composition is capable of greatly increasing the color difference contrast of a mark and a matrix material. Particularly, according to the color changing promoter composition disclosed by the invention, after adding dipentaerythritol phosphate, methyl ethyl zinc phosphinic acid and the like as accelerators, the color difference contrast is high. Meanwhile, the invention also provides a method of preparing the color changing promoter composition with simpleness, convenience, easiness in operation and good quality of products.

The invention discloses an image defogging method based on a biological vision mechanism. The diffusion illumination of a foggy image is removed through a non-classic receptive field single antagonism model and interaction of the inhibiting effect of the periphery under different sensitivity coefficients and the disinhibition effect of a subregion, the degree of color contrast of an original image is increased, and the foggy image can be automatically enhanced. A method conforming to the physiological property is provided, and the color defogging and enhancing of the single foggy color image are accurately and efficiency achieved while the detail features are reserved.

The invention relates to the computer vision field and particularly relates to a model identification method under the low illumination environment based on Retinex and S-SIFT characteristic combination. The method comprises four steps that 1), low illumination image enhancement based on Retinex and wavelet adaptive threshold transformation is carried out; 2), license plate positioning is carried out; 3), interception of a vehicle face region including the model information is carried out; and 4), an S-SIFT characteristic model of model region images is established, and model identification is carried out in combination with an SVM trainer. The method is advantaged in that an embedded FPGA can be utilized for realization, the method is applied to a camera or a video camera which has a model identification function to output images in real time under the low illumination environment, system accuracy and reliability are effectively improved, and real-time demands can be satisfied.

A car navigation device displays a map by using display colors included in a first color pallet when the speed of a vehicle traveling is lower than a predetermined value and displays the map by using display colors included in a second color pallet having a group of display colors of contrasts higher than those of the group of display colors of the first color pallet when the speed of the vehicle traveling is greater than the predetermined value.

Machine vision apparatus tracks a distinctive object in relation to a hazardous location on a work surface of a modified band saw in two, three, or four (3-D+T) dimensions, and calculates whether to send an “immediate shut-down signal” to the band saw. Cameras and an image processor are mounted on the band saw. The signal causes an integrated blade-arresting or stopping mechanism to immediately shift the idler wheel, removing blade tension and disconnecting the blade which is then braked to a complete, safe stop before an approaching blue-gloved hand can touch the blade.

The invention relates to an underwater image comprehensive enhancement method for target recognition, which comprises the following steps of: performing red channel color compensation on an underwaterdegraded image, and eliminating contrast reduction caused by forward scattering of the compensated underwater color image by adopting color cast correction. Meanwhile, in order to meet the application requirements of underwater target detection, gamma correction is carried out on the brightness, saturation and hue of an HSV color space, and the problem of blurring caused by dark overall images and backward scattering is solved by adopting single-channel defogging, so that better image contrast and color saturation are obtained, and meanwhile, the definition of details is effectively improved.The method has the advantages that as proved by subjective and objective experiments on various types of underwater images, compared with the conventional underwater image restoration and enhancementalgorithm, the algorithm provided by the invention can effectively improve the color saturation and definition of the underwater images, is wider in application range, and enables a subsequent targetdetection task to obtain higher accuracy.

Dual-wall container includes an outer wall that is at least one of at least partially substantially transparent and at least partially substantially translucent, an inner wall adapted to contain a substance, at least one symbol arranged an outer surface of the inner wall, and at least one of a coating of a thermochromatic composition arranged on the outer surface of the inner wall, a thermochromatic composition layer arranged on the outer surface of the inner wall, and a thermochromatic composition arranged on an outer surface of at least the at least one symbol. The thermochromatic composition is structured and arranged to change color when the inner wall experiences or senses a temperature change. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

The present invention provides a method for enhancing contrast of a color image displayed on a display system and an image processing system utilizing the same. In the present invention, the gray values of R, G, and B components of one color image are separately counted during processing the image. When calculating the corresponding output values for the gray values of R, G, and B components in each pixel, they are adapted to ratios between the gray values of R, G, and B components. Therefore, the present invention can effectively maintain the color distribution for a considerable degree and greatly enhance the image contrast.

Method of designing a security thread in security documents with better color contrast at any viewing angle is claimed. The invention discloses designing of security thread in security documents like bank notes using subwavelength gratings with period and thickness less than the wavelength of light. The sub wavelength gratings preferably asymmetric are designed such that the O^th order reflections are of longer wavelength (red) and the higher order reflections (diffracted orders) are of shorter wavelengths (blue/green). The security thread so designed gives better color contrast unlike the rainbow colors of prior art thus allowing better and easier distinction of authentic documents.

A head-mounted visual display device for low-vision aid, which features 2 models, they are analog signal model and digital signal model. Said analog device contains at least an analog video extractor, a video decoder, an ITU-R.656 decoder, a de-interlacing unit, an image processor, two YCbCr to RGB converter, two color enhancement units, two video D/A converter, a head mounted display, a signal voltage controller and a wireless communication module. Said digital device consists of a digital video signal extractor/capturer, a RGB to YCbCr converter, an image processor, two YCbCr to RGB converter, two color enforcement units, a head-mounted display, a signal voltage controller and a wireless communication module.