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54results about How to "Natural color transition" patented technology

Large-area complex-terrain-region unmanned plane sequence image rapid seamless splicing method

Provided is a large-area complex-terrain-region unmanned plane sequence image rapid seamless splicing method which comprises the following steps: to begin with, with air strip arrangement features of unmanned plane image sequence being prior knowledge, carrying out inter-image multiple-overlap SIFT feature point extraction and matching; then, carrying out matching point gross error removing and purifying based on random sample consensus algorithm, and solving transformation parameters of each image in spliced regions in an adjustment manner through an Levenberg-Marquardt algorithm; next, carrying out overlapped region image optimized selection according to the relative position relationship between central projection image point displacement rules and the images, and determining splicing lines; and finally, carrying out image uniform-coloring and fusion at the edge-connection places, and outputting spliced images, thereby realizing mass unmanned plane image seamless splicing. The seamless splicing method helps to improve the extraction efficiency of the SIFT feature points, guarantee the geometric accuracy of the spliced images, and eliminate the tiny color difference at the two sides of the image splicing line, and thus the spliced images with natural color transition and good natural object and landform continuity are obtained.
Owner:SHANDONG LINYI TOBACCO

Remote sensing image generalized shadow spectrum reconstruction method and system based on statistics

The invention discloses a remote sensing image generalized shadow spectrum reconstruction method and system based on statistics, and the method comprises the steps: obtaining remote sensing image datato be subjected to spectrum reconstruction, carrying out the radiometric calibration of the remote sensing image data, converting the remote sensing image data into radiation data, and carrying out the data cutting of a to-be-subjected spectrum reconstruction region; performing mixed spectrum decomposition on the spectrum reconstruction area after data cutting, and extracting a shadow base component; deducing a generalized shadow consistency spectrum reconstruction equation according to a radiation transmission theory; and based on statistical equation estimation, obtaining spectral parameters, and realizing generalized shadow spectral reconstruction of the remote sensing image to be subjected to spectral reconstruction. According to the method, the classical definition of traditional remote sensing image shadows is broken through, a generalized shadow consistency spectrum reconstruction equation is derived, the reconstruction result is natural in color transition, the texture is moreprominent, no edge effect exists, and the effect is very remarkable; and the fidelity of the information recorded by the image data is kept to the greatest extent.
Owner:湖南省有色地质勘查研究院 +1

An application icon processing method and device

The embodiment of the invention provides an application icon processing method and device. The method comprises the steps of acquiring an initial bitmap of a to-be-processed application icon; then, judging whether the shape formed by the non-transparent pixel points contained in the initial bitmap of the application icon is a preset shape or not; for an initial bitmap containing a preset shape, directly determining the initial bitmap as a target bitmap; for the initial bitmap which does not contain the preset shape, carrying out fuzzy processing on the initial bitmap to obtain an icon backboard which is similar to the icon in color, and generating a target bitmap based on the icon backboard and the corresponding initial bitmap; and finally, cutting the target bitmap by using a preset cutting template. According to the method, the optimized icon used for replacing the application icon is finally obtained according to the cut target bitmap, the overall size and the overall appearance ofthe application icon on the desktop of the user can be unified, it can be guaranteed that the icon backboard is matched with the original icon in color, it is guaranteed that the overall color of thecut icon is natural in transition, and the visual experience of the user is improved.
Owner:珠海天燕科技有限公司

Barbola cloth rendering and manufacturing method

The invention discloses a barbola cloth rendering and manufacturing method, which is characterized in that: silk cloth to be used for manufacturing barbola is rendered through the following steps of: a) dipping silk plain satin of various colors into medicinal liquid according to requirements for one hour, fishing the silk plain satin out, drawing water from the silk plain satin and ironing the silk plain satin until the silk plain satin is half-dried; b) laying the cloth open on a smooth glass plate; c) preparing tools, such as a brush and the like; d) mixing rendering colors and coloring the silk which is laid open with the brush in a way that the transition of the colors is natural and the colors are gradually changed from darker colors to lighter colors so as to achieve a naturally transitional effect; and e) naturally airing the cloth, wherein the colors are pigments for Chinese paintings and natural mineral pigments. The barbola cloth rendering and manufacturing method has the advantages of achieving natural color transition, breaking through the conventional situation that the cloth is bright-colored, and after being improved, making artwork wholly simple but elegant in color and natural in color transition and have strong expressive force, representing landscape, figure and household decorative patterns, improving the expressive force, shortening manufacturing time, reducing manufacturing cost and improving economic efficiency.
Owner:HUANGZHONG BABANLIANHUA CULTURE TRANSMISSION

A fast generation method of mosaic lines in remote sensing images

The invention discloses a fast generation method of mosaic lines in remote sensing images. The method comprises the following steps: calculating effective regions of two input images respectively; judging the type of two images, if it is panchromatic image, processing directly, and if it is multi-spectral image, calculating multi-spectral bands into single-band panchromatic image; calculating an overlapping region and calculating a difference image of the overlapping region; carrying out median filtering on the difference image; calculating a mean value and a standard deviation of the difference image, and determining a threshold value according to the mean value and the standard deviation; dividing the difference image into binary maps according to a threshold value; using a breadth-firstalgorithm d to find the best path on the binary graph, that is, mosaic lines. The method can generate mosaic lines which basically avoid buildings or regions with large color difference without manual intervention by improving the processing of difference maps, threshold selection and the like, not only can the calculation cost be reduced, the efficiency of mosaic line generation be significantlyimproved, but also the mosaic result color can be transitioned naturally, quickly and effectively.
Owner:GEOVIS CO LTD

Large-area complex-terrain-region unmanned plane sequence image rapid seamless splicing method

Provided is a large-area complex-terrain-region unmanned plane sequence image rapid seamless splicing method which comprises the following steps: to begin with, with air strip arrangement features of unmanned plane image sequence being prior knowledge, carrying out inter-image multiple-overlap SIFT feature point extraction and matching; then, carrying out matching point gross error removing and purifying based on random sample consensus algorithm, and solving transformation parameters of each image in spliced regions in an adjustment manner through an Levenberg-Marquardt algorithm; next, carrying out overlapped region image optimized selection according to the relative position relationship between central projection image point displacement rules and the images, and determining splicing lines; and finally, carrying out image uniform-coloring and fusion at the edge-connection places, and outputting spliced images, thereby realizing mass unmanned plane image seamless splicing. The seamless splicing method helps to improve the extraction efficiency of the SIFT feature points, guarantee the geometric accuracy of the spliced images, and eliminate the tiny color difference at the two sides of the image splicing line, and thus the spliced images with natural color transition and good natural object and landform continuity are obtained.
Owner:SHANDONG LINYI TOBACCO

Multicolor light-resistant composite rock slice, preparation method thereof and flexible coiled material

The invention provides a multicolor light-resistant composite rock slice, a preparation method thereof and a flexible coiled material. The preparation method of the multicolor light-resistant composite rock slice comprises the following steps: preparing a base material, adjusting the color of the base material, discharging in parallel, scraping a film, drying, separating, crushing and screening toprepare the one-piece multicolor light-resistant composite rock slice. According to the preparation method provided by the invention, various single-color base materials flow into a gathering tank inparallel, are discharged onto a mold belt from the gathering tank under the condition that mixing and stirring are not carried out, and then enter a drying tunnel to be dried to prepare a rock slicebase film, so that the prepared composite rock slice is sprayed after being added into real stone paint, the colors of the color points have the blending gradient property, the color transition between the color points is natural, the vivid texture and color effect of the natural stone are achieved, the simulation degree of simulating the natural stone is high, the natural stone is not prone to fading and pulverization after being irradiated by sunlight for a long time, and the defects in the prior art are overcome.
Owner:亚士创能新材料(滁州)有限公司 +1
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