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Image processing method and electronic device thereof

An image processing and image technology, applied in the direction of color signal processing circuit, luminance and chrominance signal processing circuit, etc., can solve problems affecting human visual experience, easy to be detected by human eyes, chromatic aberration, etc., to maintain natural color presentation, The effect of avoiding color discontinuity

Active Publication Date: 2020-09-29
REALTEK SEMICON CORP
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Problems solved by technology

These methods may cause the color saturation that is not color noise in the image to also decrease, affecting the visual experience of the human eye
[0003] On the other hand, limited by the characteristics of the photosensitive element, when there is highlight overflow in the image, chromatic aberration (chromatic aberration) will occur around the pixels through which the high-brightness light passes. The false color of the purple fringing is easy to detect by the human eye

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  • Image processing method and electronic device thereof
  • Image processing method and electronic device thereof
  • Image processing method and electronic device thereof

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Embodiment Construction

[0034] The image processing method provided in this case is used on an electronic device with an image processing function, and uses an image signal processor to suppress the image. Each image is composed of multiple pixels, and at least some or all of the multiple pixels can be used as target pixels. Therefore, in this case, when performing color noise suppression processing on an image, the target pixels in the image are processed.

[0035] figure 1 is a schematic block diagram of an electronic device according to an embodiment of the present case, please refer to figure 1 As shown, an electronic device 10 includes an image capture unit 12 , an image signal processor 14 and a display unit 16 . The image capturing unit 12 captures at least one image and environmental parameters such as scene brightness at the location of the image from outside. In some embodiments, the image capturing unit 12 is an image sensing element such as a charge coupled device (CCD) or a complementa...

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Abstract

The invention discloses an image processing method and an electronic device thereof. The image processing method comprises the following steps: performing a color processing program on each target pixel, and correspondingly obtaining a plurality of first processing pixels. The color processing program comprises the following steps: determining that each target pixel is positioned in a low color saturation region, a medium color saturation region or a high color saturation region according to the color saturation of each target pixel and a color partition parameter; carrying out suppression processing on the target pixel in the low-color saturation region; suppressing the color saturation of the target pixel as a gray scale, performing progressive suppression processing on the target pixellocated in the middle color saturation region, so that the color saturation of the target pixel can be suppressed according to a suppression multiplying power, and the original color saturation of thetarget pixel located in the high color saturation region can be maintained.

Description

technical field [0001] This case is about a digital image processing technology, especially an image processing method capable of suppressing color noise and its electronic device. Background technique [0002] Image Signal Processors (ISPs) used in image capture electronic devices are widely used in various products, such as digital cameras, smart phones, computer cameras, surveillance systems, etc. In order to reduce the color noise (color noise) in the image, the image signal processor will reduce the color saturation of certain areas in the image. The coefficient value of the color component U / V signal of the pixel in the area; or reduce the color component U / V value of the pixel in the high brightness area by a certain ratio. These methods may cause the color saturation in the image which is not color noise to also decrease, affecting the visual experience of the human eye. [0003] On the other hand, limited by the characteristics of the photosensitive element, when ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/64H04N9/77
CPCH04N9/64H04N9/77
Inventor 萧晶如黄文聪
Owner REALTEK SEMICON CORP