Image processing method and image processing apparatus

Abstract

The embodiment of the invention discloses an image processing method and an image processing apparatus. With the method and apparatus, the execution speed is accelerated and the power consumption of the imaging processing apparatus is reduced; and the method and apparatus are used for a divider-free or FPU-free integrated circuit. According to the embodiment of the invention, the method comprises: obtaining a red component, a green component, and a blue component of a to-be-processed pixel point; receiving a tone parameter and a saturation parameter; calculating an interval variable and a difference angle variable according to the tone parameter and a first preset value; on the basis of the red component, the green component, the blue component, the first preset value, the interval variable, the difference angle variable, and the saturation parameter, carrying out computing to obtain a target interval variable and a temporary parameter; carrying out displacement processing on the temporary parameter to obtain a target parameter; and according to the target interval variable and the target parameter, determining a target red component, a target green component, and a target blue component, and updating the color displayed by the to-be-processed pixel point based on the target red component, the target green component, and the target blue component.

Description

technical field [0001] Embodiments of the present invention relate to the field of image processing, and in particular, to an image processing method and an image processing device. Background technique [0002] In the field of image processing, the red-green-blue (RGB) color model is a color standard in the industry, and various colors are formed by changing the colors of the three channels of RGB and superimposing them with each other. In the RGB color mode, the RGB model assigns a value to the RGB component of each pixel in the image. When the storage space of the pixel component is 8 bits, the value range of the pixel component is 0~255 (0~28), for example: when The R, G, and B components of the pixel are all 0, and the pixel is black; when the R, G, and B components of the pixel are all 255, the pixel is white; the R component of the pixel of the color is 255, and the G component is 0, the B component is 0, and the pixel is pure red. In an RGB image, different colors ...

AI Technical Summary

Problems solved by technology

[0006] In the integrated circuit design (ICDesign, Integrated circuit design) of image processing, for example, the driver IC of liquid crystal display (LCD, LiquidCrystalDisplay), or in the miniature image processing chip of IP-based network camera (IPCam, IPnetworkcamera), adopt existing When the color adjustment algorithm processes the color of the pixels, a divider and a floating point unit (FPU, floating point unit) must be used. Because the structure of the divider and the FPU is complex, it needs to occupy a considerable area of ​​the integrated circuit in the image processing device. The manufacturing cost of integrated circuits in image processing devices has a great influence

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