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Image processing method and device

An image processing and image technology, applied in the field of image processing, can solve problems such as unsatisfactory backlight modules

Active Publication Date: 2022-03-29
海思技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the effect of using this frame-level gain to reduce the power consumption of the backlight module is not ideal.

Method used

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  • Image processing method and device
  • Image processing method and device
  • Image processing method and device

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Embodiment Construction

[0079] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0080] The terms "first", "second", "third" and the like in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

[0081] Combine below Figure 1A Introduce the light emitting principle of the image processing device.

[0082] Such as F...

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Abstract

The present application provides an image processing method and device. The method includes: converting an image in a first format into an image in a second format, the image in the first format includes a plurality of first pixels, the image in the second format includes a plurality of second pixels, the first pixels include three different colors sub-pixels, the second pixel includes four sub-pixels of different colors; determine the frame-level gain of the image in the first format; respectively determine the corresponding pixel-level gain of each first pixel in the image in the first format; according to the frame-level The gain and the pixel-level gain corresponding to each first pixel determine the target gain corresponding to each second pixel. The target gain is used to control the backlight brightness of the backlight module, which can reduce the power consumption of the backlight module to a greater extent.

Description

technical field [0001] The present application relates to the field of image processing, in particular to an image processing method and device. Background technique [0002] Currently, red green blue white (RGBW) panels can be used in televisions, mobile phones and other devices. Compared with the traditional red green blue (RGB) panel, the RGBW panel has the advantage of increasing the light transmittance of the display panel due to the addition of white (W) sub-pixels. Therefore, under the same backlight brightness, the display brightness of the RGBW panel is higher than that of the RGB panel. In the case of the same display brightness, the brightness of the backlight can be reduced by reducing the duty cycle of the backlight pulse width modulation (PWM) of the backlight module, so as to reduce the power consumption. [0003] In the prior art, a frame-level gain is usually obtained according to the input RGB data, and the frame-level gain is used to adjust the duty cycl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/3406G09G3/3413G09G3/3607G09G2330/021
Inventor 刘军杨梅许景翔刘洋牛泽宇
Owner 海思技术有限公司