Image zooming method and system thereof
An image scaling and source image technology, applied in the field of image processing, can solve the problems of insufficient image clarity and image quality degradation, and achieve the effects of high definition, improved image quality, and good numerical stability.
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no. 1 example
[0044] see figure 1 , is the flow chart of the first embodiment of the image zooming method provided by the present invention, and the method includes:
[0045] In step S100, based on the three color channels of red, green and blue, respectively determine the image area to which each pixel belongs in the red component intensity, green component intensity and blue component intensity of the source image, and the image area includes an edge area and a flat area .
[0046] If it is determined that the pixel belongs to the flat area, step S101 is executed. In step S101, according to the binary three-point Lagrangian interpolation algorithm, the red component intensity, green component intensity and blue component intensity corresponding to the pixels belonging to the flat area are interpolated to calculate the pixel value of the target image.
[0047] If it is determined that the pixel belongs to the edge area, step S102 is executed. In step S102, interpolation calculation is p...
no. 2 example
[0050] see figure 2 , is the flow chart of the second embodiment of the image scaling method provided by the present invention, the method includes:
[0051] In step S200, based on the three color channels of red, green and blue, select at least one pixel around each pixel from the red component intensity, green component intensity and blue component intensity of the source image according to the preset first sampling rule as the first sampling space. The first sampling rule can be: for pixel I in red component intensity r (i, j), select I in the intensity of the red component r (i-1, j-1), I r (i-1, j), I r (i-1, j+1), I r (i, j-1), I r (i, j), I r (i, j+1), I r (i+1, j-1), I r (i+1, j), I r (i+1, j+1) These 9 pixels are used as the first sampling space; for the pixel I in the green component intensity g (i, j), select I in the intensity of the green component g (i-1, j-1), I g (i-1, j), I g (i-1, j+1), I g (i, j-1), I g (i, j), I g (i, j+1), I g (i+1, j-1)...
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