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Image processing method and electronic device thereof

An image processing and image technology, applied in color signal processing circuits, brightness and chrominance signal processing circuits, etc., can solve problems such as color saturation drop, easy to be perceived by human eyes, chromatic aberration, etc.

Active Publication Date: 2021-09-14
REALTEK SEMICON CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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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 sensor such as a charge coupled device (CCD) or a complementary metal-...

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Abstract

This case discloses an image processing method and its electronic device. The image processing method includes performing a color processing program on each target pixel, and correspondingly obtaining a plurality of first processed pixels. The color processing program includes determining whether each target pixel is located in a low color saturation area, a medium color saturation area or a high color saturation area according to the color saturation of each target pixel and a color partition parameter; The target pixel is subjected to suppression processing to suppress the color saturation of the target pixel to a gray scale, and the target pixel located in the middle color saturation area is suppressed and progressively processed to suppress the color saturation of the target pixel according to a suppression magnification, and The target pixels in the high color saturation area maintain the original color saturation.

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 Patents(China)
IPC IPC(8): H04N9/64H04N9/77
CPCH04N9/64H04N9/77
Inventor 萧晶如黄文聪
Owner REALTEK SEMICON CORP