8results about How to "Reduce color shift" patented technology

The invention discloses an image signal processing method and system and holder equipment, and relates to the technical field of image processing. The method comprises: performing white balance processing on a to-be-processed image to obtain a first image; performing brightness enhancement on the first image to obtain a second image; performing gamma correction and sharpening processing on the second image to respectively obtain a third image and a fourth image; and fusing the third image and the fourth image to obtain a final high-quality image. Color deviation is reduced through white balance processing; the contrast of the image is improved through brightness enhancement; through gamma correction, the phenomenon of insufficient exposure or overexposure can be repaired; the detail level and definition of the image can be enhanced through sharpening processing. By fusing the images after gamma correction and sharpening processing, negative effects caused by independent processing can be avoided, and brightness and details are balanced.

The embodiment of the disclosure belongs to the technical field of signal processing, and particularly relates to a color synchronization and color difference correction method and device for FPV unmanned aerial vehicle digital decoding, which comprises the following steps: receiving an analog image transmission signal of an FPV unmanned aerial vehicle, digitally sampling the analog image transmission signal, and obtaining chrominance signals of a plurality of sampling points in each row; calculating a phase error of each row based on the chrominance signals of the plurality of sampling points in each row and a local oscillator signal of a receiving end device; performing phase compensation row by row based on the phase error of each row, and digitally decoding the chrominance signals after phase compensation; and performing color calibration compensation on the original CVBS signal according to the chrominance difference between the digitally decoded signal and an actual analog signal. The scheme simplifies the color synchronization process, avoids the complexity of a traditional phase-locked loop, and at the same time, through independent calculation of the phase error of each row, accurate chrominance compensation is performed, and the image quality is significantly improved.

The embodiment of the utility model discloses a light source module, a lamp and a lighting system, and relates to the technical field of electronics. The light source module comprises a first light emitting unit used for emitting controlled first color temperature white light; the second light emitting unit is used for emitting controlled second color temperature white light; the third light emitting unit is used for emitting controlled first color light; and the fourth light emitting unit is used for emitting controlled second color light, the first color temperature white light, the second color temperature white light, the first color light and the second color light are used for light mixing to obtain target color temperature white light, the first color light is long-wave red light, and the second color light is yellow-green light. According to the light source module, the lamp and the lighting system, the color band range of the target color temperature white light can be expanded, meanwhile, the color deviation of the target color temperature white light is reduced, and the overall light quality is improved.

The invention relates to the technical field of ceramic product manufacturing, and discloses a rapid color development generation method, device and equipment of ceramic pug and a medium, the method comprises the following steps: obtaining a rendering image of a product to be processed, and extracting a mud color gamut value from the rendering image; extracting color gamut data features by using a feature extraction algorithm, inputting the color gamut data features into a first threshold monitoring model for matching, and determining a reference threshold interval corresponding to the mud blank components and the firing conditions; carrying out shaping and firing treatment according to the reference threshold interval, and obtaining a real-time color gamut value of the outer surface of the pug prototype in the firing process; and dynamically evaluating the sintering state of the pug prototype by using the second threshold monitoring model, and controlling heating termination and cooling according to the sintering state. According to the invention, accurate evaluation of the firing state and intelligent control of heating termination and cooling start are realized, the problems of dependence on manpower, feedback lag and high trial and error cost of a traditional process are effectively solved, the accuracy and consistency of pug color development are improved, and the trial and error frequency and energy consumption are reduced.

The application discloses a printing method, a printer, a device and a storage medium. Material information of a to-be-printed image and current printing medium is acquired first. Then, a color characteristic curve and a color management curve are determined according to the material information. Next, the to-be-printed image is color-corrected according to the material information, the color characteristic curve and the color management curve, so as to obtain a target printing image. Subsequently, a printing operation is performed on the current printing medium according to the target printing image. According to the application, the corresponding color characteristic curve and color management curve are determined according to the material information of the printing medium, so that individual color management for different material printing media can be realized, thereby effectively reducing the color difference between different material areas and greatly improving the consistency and accuracy of colors.

The present invention relates to the technical field of video image processing, and in particular to an LED display screen image processing system, comprising: an image input module for inputting an initial image into an LED display screen; an image processing module connected to the image processing module, comprising a preprocessing unit for performing a preprocessing operation on the initial image to output an optimized image; a display module connected to the image processing module for displaying the video image; a control module connected to the image input module, the image processing module and the display module respectively, for determining whether the stability of image processing meets the requirements according to the variance of the packet loss rate of the video image, and adjusting the input rate of the video image or adjusting the color balance ratio of the video image according to the average color saturation of the video image when it does not meet the requirements. The present invention achieves an improvement in the stability of image processing.

The utility model discloses a laser projection system which comprises at least two light source assemblies, the light source assemblies are used for projecting light rays, the light rays are respectively guided to a fluorescent wheel to be subjected to color processing to form first light rays and second light rays, and the first light rays and the second light rays are staggered in space to improve the optical path difference of the light rays; the first light and the second light are combined into third light through a light combining assembly, color mixing is carried out through a color wheel, homogenizing modulation is carried out through a light homogenizing assembly, and finally the third light is reflected to a projection lens. The utility model further discloses a laser projector comprising the laser projection system. The interference among scattered waves can be effectively reduced through the spatial dislocation design, so that the speckle effect is improved; and meanwhile, the utilization rate of light rays is improved, so that more light rays can be effectively utilized, and the brightness and definition of a projected image are enhanced.

This utility model discloses an optical lens assembly for a vehicle headlight, a vehicle headlight, and a vehicle, relating to the field of vehicle headlight technology. The optical lens assembly includes a light source, an aperture, a first lens, and a second lens. The aperture forms a light-transmitting hole facing the light source. The first lens is disposed on the side of the aperture away from the light source. The second lens is disposed between the aperture and the light source, and the surface of the second lens facing the light source is planar. At least one of the first and second lenses has an Abbe number greater than 55, and at least one of the first and second lenses has a refractive index greater than 1.80. The optical lens assembly of this utility model ensures high-quality lighting while reducing size, assembly costs, and difficulty.