51results about How to "Avoid color differences" patented technology

The invention discloses a method for correcting color between images. The method comprises the steps of inputting two images including a first image and a second image having a common public area; determining the linear relationship on a color channel between the first image and the second image by respectively acquiring the color average value of the color channel in the common area of the first image and the second image; and correcting the color value of pixels on the full image of the first image or the second image according to the linear relationship. The invention also discloses a device for correcting color between images. The method and the device provided by the invention can solve the consistency problem of illumination and color tone in panoramic image generation, image registration and image fusion, and can be specifically used in picture processing software of PC (personal computer) terminal, mobile phone and tablet PC, with the advantages of stable correction effect and wide application.

A transflective liquid crystal device capable of balancing a color difference between a reflective region and a transmissive region. The arrangement conditions of optical elements in the transflective LCD are as follows. The twist angle of the liquid crystal is about 40°˜80°. The angles β_up, β_down, θ_up and θ_down are about −20°˜−60°, −20°˜20°, 60°˜110°, −30°˜20° respectively. The angle between the retardation axes of the upper λ/2 plate and the upper λ/4 plate is about 30°˜100°, and the angle between the retardation axes of the lower λ/2 plate and the lower λ/4 plate is about 30°˜80°.

The invention discloses a video signal processing method and photographic equipment, and belongs to the field of video cameras. The method comprises the following steps of: acquiring a video signal, and dividing a plurality of frames of images in the video signal into two or more than two sub-images; primarily processing the two or more than two sub-images of the plurality of frames of images by using two or more than two image sensor processor (ISP) processing units; and outputting the processed two or more than two sub-images of the plurality of frames of images. The photographic equipment comprises a lens, a sensor, an image divider, a controller and the two or more than two ISP processing units. Image division is used, and the two or more than two ISP processing units are used for performing path division processing on the divided sub-images, so that the resolution of the output images can be improved, image blurring at splicing parts can be avoided, an ultrahigh-definition video camera can be implemented, and the shortcomings of gap overlapping or deficiency, color differences, asynchrony and the like caused by the use of a plurality of video cameras for image splicing in the conventional ultrahigh-definition video camera system are overcome.

The invention discloses a laser lapping half penetration weld method, which is characterized in that a protection film covers a non-penetration surface to obstruct air for welding. Because the protection film covers the non-penetration surface to obstruct air for welding, the exposed non-penetration surface of a stainless steel trolley coach steel structure is reduced and prevented from being oxidized and discolored; the original color of the outer surface of the stainless steel trolley coach steel structure can be kept attractive; the operation of electrochemical corrosion to remove oxidative stain for the exposed non-penetration surface after welding is canceled and reduced; the outer surface of the stainless steel trolley coach steel structure is protected from color difference; working procedures are reduced, the time is saved, the production efficiency is improved, and the product cost is lowered; the chemical preparation discharge and the environment pollution are reduced; and the pollution treatment cost is saved.

The present invention discloses a color sequence offset modulation method and device, which modulates the colored backlights of a multi-color backlight source to have a dark interval in the time points of shifting the colored backlights and makes the dark interval coincide with the close delay interval caused by the delayed response of liquid crystal, whereby the latter colored backlight will not mix with the former colored backlight during the close delay interval, wherefore the present invention can avoid the color deviation caused by color mixing and can present the designed colors correctly.

The invention discloses a thermal transfer printing production technology for a paint-free plate. The thermal transfer printing production technology comprises the following steps that raw wood is put in a steaming vat to be steamed at a temperature of 100 DEG C for one week, and oil in the raw wood is steamed out; the raw wood is fragmented to form strip-shaped plates which are 20 to 100mm in width, 10 to 50mm in thickness and unlimited in length; side surfaces of the plates are combed, so that the plates are easy to splice; the side surfaces of the plates, which are used for being spliced, are pasted with glue; the plates are spliced according to required length; the spliced plates are cold-pressed at a temperature of 10 DEG C to 50 DEG C for 0.5 to 26 hours, so as to enable the plates spliced together to form a whole plate; and the procedures of single rolling, single rolling coloring, thermal printing, coloring and the like are conducted. The heat transfer printing production technology for the paint-free plate, which is disclosed by the invention, is simple, is easy to operate and is low in cost, the produced paint-less plate is reliable in quality and has stereoscopic aesthetic feeling, and the service life of the paint-less plate can be prolonged, so the greenness is realized and the environment is protected.

The invention discloses a production technology for indigo cotton yarn. The production technology comprises the steps of blowing, carding, first drawing, second drawing, third drawing, roving, spinning and post processing, and specifically comprises the steps that firstly, indigo dye coating is molten to be prepared into a leuco body for use; secondly, preprocessed cotton is put into the indigo dye coating, the temperature is increased to 35 DEG C at a speed of 3 DEG C/min, temperature keeping is conducted for 30 min, the temperature is increased to 120 DEG C at a speed of 2 DEG C/min, dyeing continues to be conducted for 20 min, the temperature is decreased to 40 DEG C at a speed of 3 DEG C/min, and the cotton is taken out; thirdly, blowing, carding, first drawing, second drawing, third drawing, roving and spinning are conducted on the dyed cotton so that the cotton can be spun into cotton yarn for use; fourthly, post processing is conducted on the dyed cotton yarn, and post processing comprises drafty oxidation for 5 min, soaping and stoving, soap washing liquor is formed by adopting anhydrous sodium carbonate of 2 g/L and standard soap flakes of 5 g/L, the temperature is 60 DEG C, time is 20 min, and soap boiling, washing and stoving are conducted on the oxidized fabric.

A strut device for an umbrella includes an upper stave, a main stave having an inner end portion pivotally coupled to an outer end portion of the upper stave, a lower stave having an outer end portion pivotally coupled to the upper stave with a stave support, and an outer stave having an inner end portion pivotally coupled to the outer end portion of the main stave, the staves are made of a fiber reinforcing material, a number of couplers are attached onto the end portions of the staves and each has a metal member engaged onto the end portions of the staves, and an outer covering attached onto the metal member for covering and protecting the metal member and for preventing the couplers from scraping or damaging the canopy.

Each print job received from a client computer 30 is divided into minimum printing units as divisional jobs, which are stored in a job folder 23b. When either of an upper spooler 23d and a lower spooler 23e has any vacancy for next allocation, one divisional job is allocated to a printer corresponding to the spooler having the vacancy. The name of the printer that has received allocation of the divisional job is written into the job folder 23b. When any allocated divisional job having an identical image file name and an identical customer ID with those of a current object divisional job is present in the job folder 23b, the current object divisional job is allocated to the printer, to which the allocated divisional job has been allocated. This arrangement allocates multiple divisional jobs for printing an identical image demanded from an identical customer to the same printer, thus ensuring substantially equal quality of resulting printed images.

A transparent touch panel comprises a first transparent covering layer, an induction layer and a second transparent covering layer which are sequentially connected. The induction layer comprises a first substrate, a first imprinting adhesive layer, a first conducting layer, a tackifying layer, a second substrate, a second imprinting adhesive layer and a second conducting layer which are sequentially connected; the first imprinting adhesive layer is provided with a first network-cable-shaped groove to form into first grids; the first conducting layer comprises conducting materials which are arranged inside the groove and a first lead electrode which is connected with the conducting materials; the second imprinting adhesive layer is provided with a second network-cable-shaped groove to form into second grids; first grids are regular grids and second grids are random grids; the first network-cable-shaped groove and the edge line of the first network-cable-shaped groove are curved lines or fold lines which enables the contact areas between the conducting materials and the groove edges to be enlarged; the second conducting layer comprises the conducting materials which are arranged inside the groove and a second lead electrode which is connected with the conducting materials. The transparent touch panel can maintain good performance due to the fact that the friction force is increased due to the contact area between the conducting materials and the groove is enlarged.

The invention discloses a piece of mycotoxin test paper, and belongs to the field of test paper. The mycotoxin test paper comprises a base body arranged at the bottom. A test pad is arranged in the middle on the base body and is in an annular shape. An anti-overflowing pad is arranged on one side of the test pad. A sample soaking pad is arranged on the other side of the test pad. The edge of the upper end of the test pad coats the upper surfaces of the anti-overflowing pad and the sample soaking pad. The upper surface of the anti-overflowing pad is coated with a developing membrane. The upper surface of the sample soaking pad is coated with a sample absorption strip which is connected with an induction region. The mycotoxin test paper has the advantages that use is convenient, the test paper is rapid and sensitive, no complex pretreatment needs to be performed on samples, whether samples contain ochratoxin or not can be detected rapidly, the test sensitivity is high, and the test limit can reach 1.4 ng/mL.