Image processing method and device, video signal splicing processor

Abstract

The invention provides an image processing method and device, and a video signal splicing processor. The image processing method comprises the following steps: collecting an image signal of a signal source to acquire image resolution of the image signal; when judging that the image resolution is greater than the preset resolution threshold, blocking the image signal so that the resolution of eachpixel unit obtained through blocking is the resolution threshold; determining the resolution of each pixel unit, adjusting the clock frequency according to the resolution of the pixel unit, and performing analysis processing on each pixel point included in the pixel unit by using the adjusted clock frequency. Through the image processing method provided by the embodiment of the invention, the clock frequency of the processor can be reduced, and the service life of the processor is prolonged.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to an image processing method, device and video signal splicing processor. Background technique [0002] With the gradual improvement of digital signal quality, the current mainstream image resolution has reached 2K level (resolution 1920×1080) or even 4K level (resolution 3840×2160). Taking 4K image quality as an example, it means that every The number of pixels contained in one frame of image is 3840×2160. [0003] When processing 4K-level image quality, the information that needs to be processed per unit time exceeds 8 million pixels, causing the CPU processor to automatically increase the clock frequency when processing such signals to ensure that the time remains unchanged. This will cause the CPU processor to be in the overclocking state for a long time, and the temperature of the CPU processor will be too high, which will easily cause physical damage to the chip an...

AI Technical Summary

Problems solved by technology

[0003] When processing 4K-level image quality, the information that needs to be processed per unit time exceeds 8 million pixels, causing the CPU processor to automatically increase the clock frequency when processing such signals to ensure that the time remains unchanged. This will cause the CPU processor to be in the overclocking state for a long time, and the temperature of the CPU processor will be too high, which will easily cause physical damage to the chip and greatly affect the service life of the chip.

In addition, too high a clock frequency will also cause the CPU processor to work in an unstable state.

[0004] The inventor found in the research that in the prior art, in order to achieve the purpose of reducing the CPU clock frequency, the image resolution of the input signal can be reduced first, and then the color space conversion is performed, but this will cause irreversible loss of image quality. At present, there is an urgent need in the field to provide a signal processing solution that can maintain the original image quality

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