Image white balance adjusting method and apparatus, image processing chip and storage apparatus
An adjustment method and technology of an adjustment device are applied in the field of image processing to achieve the effects of easy implementation, low resource consumption and fast adjustment
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Example Embodiment
[0056] Example one
[0057] figure 1 The implementation process of the method for adjusting the white balance of an image provided by the first embodiment of the present invention is shown. The method includes steps S1 to S4, which will be described in detail below.
[0058] Step S1: Color gamut conversion step: Convert the pixels of the image from the RGB domain to the YCbCr domain. After converting to the YCbCr domain, it is convenient to find the white point in the YCbCr domain in the subsequent steps.
[0059] Step S2, brightness interval gain calculation step: find the white points in each brightness interval according to the set multiple brightness intervals and the white point color characteristic conditions of the multiple brightness intervals, and calculate the white balance in each brightness interval Adjusted gain value;
[0060] In the above brightness interval gain calculation step, the white point color feature conditions include ranges respectively set for |Cb|, |Cr| a...
Example Embodiment
[0077] Example two
[0078] image 3 The image white balance adjustment device provided in the second embodiment of the present invention is shown, which includes a color gamut conversion unit 21, a brightness interval gain calculation unit 22, an image overall gain calculation unit 23, and an image color adjustment 24. This will be described in detail below.
[0079] The color gamut conversion unit 21 is used to convert the pixels of the image from the RGB domain to the YCbCr domain, so as to facilitate the subsequent finding of the white point in the YCbCr domain.
[0080] The brightness interval gain calculation unit 22 is configured to find the white points in each brightness interval according to the set multiple brightness intervals and the white point color characteristic conditions of the multiple brightness intervals, and calculate the white points in each brightness interval The gain value of white balance adjustment.
[0081] In this embodiment, the white point color char...
Example Embodiment
[0098] Example three
[0099] Such as image 3 As shown, the third embodiment of the present invention provides in the embodiment of the present invention, an image processing chip is provided, which includes at least one processor 310, a memory 320, and an interface 330. The at least one processor 310, the memory 320, and the interface 330 All are connected by bus;
[0100] The memory 320 stores computer execution instructions;
[0101] The at least one processor 310 executes the computer-executable instructions stored in the memory 320, so that the image processing chip executes the image white balance adjustment method described in Embodiment 1.
[0102] The embodiment of the present invention also provides a storage device, the device stores instructions, and when the instructions are executed by a processor, the steps of the aforementioned image white balance adjustment method are realized.
[0103] In summary, the image white balance adjustment method, device, image processing c...
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