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An image enlargement method based on interpolation

An interpolation and image technology, applied in the field of image processing, can solve problems such as unsatisfactory visual effects, poor anti-noise ability, blurred image edges, etc., and achieve the effect of disappearing jagged effect, strong anti-noise ability, and strong ability

Active Publication Date: 2019-01-11
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The more commonly used interpolation methods now include the nearest neighbor interpolation method and the bicubic interpolation method. This commonly used classical interpolation method generally focuses on the smoothness of the image, but this type of method often leads to the edge of the interpolated image while maintaining the smoothness of the image. Fuzzy, and the edge information of the image is an important factor affecting the visual effect of the image, the visual effect is not ideal, and the anti-noise ability is poor

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  • An image enlargement method based on interpolation
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  • An image enlargement method based on interpolation

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Embodiment 1

[0057] See figure 1 , figure 1 It is a schematic flowchart of an interpolation-based image enlargement method provided by an embodiment of the present invention. An interpolation-based image enlargement method provided in an embodiment of the present invention includes:

[0058] Extending the original image to form an image to be enlarged;

[0059] Acquiring interpolation weights according to the image to be enlarged;

[0060] inserting pixels to be interpolated into the image to be enlarged to form a first enlarged image;

[0061] Processing the first enlarged image with the interpolation weights to form a final enlarged image.

[0062] The image magnification method of this embodiment is an image magnification method based on interpolation, which can realize effective super-resolution magnification of the image, and effectively maintain the edges of the image, so that the visual effect of the magnified picture is better, and the image The jagged effect of the edge disap...

Embodiment 2

[0064] On the basis of the above-mentioned embodiments, the embodiment of the present invention specifically introduces the interpolation-based image magnification method provided by the embodiment of the present invention. The image magnification method specifically includes:

[0065] Step 1, expanding the original image to form an image to be enlarged;

[0066] Acquiring the original image to be enlarged, expanding the original image through the original pixels of the original image, and forming the image to be enlarged after the original image is expanded;

[0067] Specifically, copy all the original pixels in the first row of the original image as extended pixels, and paste them on top of the original pixels in the first row of the original image to form the first extended image; then copy all the original pixels in the first column of the first extended image Pixels and extended pixels are used as extended pixels, correspondingly pasted to the left side of the first colum...

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Abstract

The invention relates to an image enlargement method based on interpolation, which comprises the following steps: expanding an original image to form an image to be enlarged; acquiring interpolation weights according to the image to be enlarged; inserting a pixel point to be interpolated into the image to be enlarged to form a first enlarged image; processing the first enlarged image with the interpolation weight to form a final enlarged image. The image enlargement method of the invention is an image enlargement method based on interpolation, which can realize effective super-resolution enlargement of the image and effectively maintain the edge of the image, so that the enlarged picture has better visual effect, the sawtooth effect of the edge of the image disappears, and the ability of maintaining the edge of the image is stronger and the noise resistance is stronger.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to an image enlargement method based on interpolation. Background technique [0002] Because high-resolution images can provide people with more accurate and intuitive information, they are increasingly favored by people and play an important role in work and life. As the most basic operation of image processing, image interpolation method plays an increasingly significant role in the field of image processing. Interpolation methods are used for conversion between image formats, improvement of image quality, and image reconstruction. [0003] The more commonly used interpolation methods now include the nearest neighbor interpolation method and the bicubic interpolation method. This commonly used classical interpolation method generally focuses on the smoothness of the image, but this type of method often leads to the edge of the interpolated image while maintai...

Claims

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Application Information

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IPC IPC(8): G06T3/40
CPCG06T3/4007G06T3/4053
Inventor 赵小明董磊李英王星量王文超白亚烁柳鑫高苗
Owner XIDIAN UNIV