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Image zooming method and device

An image scaling and image technology, applied in the multimedia field, can solve problems such as image and video detail texture area distortion, and achieve the effect of solving serious distortion

Active Publication Date: 2019-03-26
SHENZHEN LONTIUM SEMICON TECH CO LTD
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Problems solved by technology

[0005]Based on the deficiencies of the above-mentioned prior art, the present invention proposes an image zooming method and device to solve the problem of severe distortion of the zoomed picture and video detail texture area

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] First of all, it needs to be explained that the image zooming method and device provided in the embodiments of the present application are not only suitable for image zoom processing, but also for video zoom processing.

[0055] The embodiment of the present application discloses an image scaling method, such as figure 1 shown, including the following steps:

[0056] S101. Determine a plurality of pixel points to be generated in an image to be scaled. ...

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Abstract

The invention provides an image zooming method and device. when the brightness value and the chrominance value of each new pixel point are calculated; calculating a position coefficient by utilizing arelative position relation between the new pixel point and the corresponding reference pixel point; the brightness difference condition of the reference pixel point corresponding to the new pixel point is combined; and adjusting the position coefficient to obtain an interpolation coefficient, and finally calculating the brightness value and the chrominance value of the new pixel point according to the interpolation coefficient and the brightness and the chrominance value of the reference pixel point, thereby avoiding the problem that in the existing scaling technology, only the relative position relation is considered when the interpolation coefficient is calculated, so that image distortion after scaling is caused.

Description

technical field [0001] The present invention relates to the field of multimedia technologies, in particular to an image scaling method and device. Background technique [0002] Image scaling refers to using the original pixels of the image to be scaled to determine multiple new pixels, and then inserting these new pixels at specific positions of the image to be scaled, or replacing specific parts of the original pixels with these new pixels , thereby adjusting the resolution of the image to match the resolution of the image with the resolution of the display device. Wherein, the position of the new pixel in the image can be determined according to the scaling ratio. [0003] The existing image scaling technology, after determining the position of the new pixel, selects multiple adjacent original pixels as the reference pixel for each new pixel, and then according to the relative relationship between the new pixel and the corresponding reference pixel, The position determin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40
CPCG06T3/4007
Inventor 孙旭殷文涵余荣良叶继兴胡理刚梁师勇乐长方
Owner SHENZHEN LONTIUM SEMICON TECH CO LTD
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