58results about How to "Avoid halo" patented technology

The invention discloses a brightness adjustment method of a display screen. The method comprises the steps that in the operating process of a household appliance, a current ambient brightness LC is acquired; when the current ambient brightness LC is lower than a target brightness LT and the difference value between the current ambient brightness LC and the target brightness LT is within a preset adjustment range value, the brightness of the display screen is adjusted to be lower; when the current ambient brightness LC is higher than the target brightness LT and the absolute value of the difference value between the current ambient brightness LC and the target brightness LT is larger than a fluctuating value DF, the brightness of the display screen is adjusted to be higher. The invention further discloses an air conditioner and a brightness adjustment device of the display screen. When the brightness of the display screen is adjusted through the method and the device, the current ambient brightness and the brightness of the display screen are fully considered, so that the screen display is prevented from haloing and kept in the optimal display state.

Methods and apparatus, including computer program products, for erasing in a digital image. A method includes identifying a plurality of tip regions on the image, establishing an erasure color, and completely erasing pixels in the tip region that have a color matching the erasure color. Pixels having partially matching colors are partially erased and color decontaminated.

A method of improving an image quality of a video signal, which is supplied on a frame-by-frame basis, includes extracting low frequency components from a video signal of an n-th frame, where n is a natural number excluding zero, subtracting the extracted low frequency components from a video signal of an (n+m)th frame to produce high frequency components, where no is a natural number excluding zero, and adding the produced high frequency components to the video signal of the (n+m)th frame. The extracted low frequency components include a horizontal component and a vertical component.

In an inspection of a semiconductor wafer for a defect, when infrared light passing through a semiconductor wafer is imaged by a camera and an inspection is conducted using the image, a problem that halation occurs in the camera due to light leaking from the side of the inspection object, which makes it impossible to conduct an inspection at the periphery portion occurs. An inspection object is irradiated by an infrared light source, and transmitted light is imaged by an infrared camera to be conducted. With the use of mask means that secures a clearance from the end portion on the outer side, it is possible to inspect on the peripheral portion. Also, as means for supporting the object, plural sets of those configured to be capable of evacuating are used, and by allowing the plural sets to evacuate alternately, it is possible to inspect across the entire surface.