Digital image analysis method based on fractal dimension
A digital image and fractal dimension technology, applied in image analysis, image data processing, instruments, etc., can solve problems such as long calculation time, difficult to fully reflect, and increased computational complexity.
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example 1
[0185] Example 1: Using this method to figure 2 Calculate the fractal dimension of the grayscale texture image in
[0186] According to the first step of this method, the color attribute information of each pixel point in the grayscale texture image (that is, the pixel point position, gray value or three primary color component values) is regarded as a set of vector attributes of the pixel point, through a m The ×n matrix U is saved.
[0187] According to the second step of the method, the image information conversion method is performed on the matrix U, and then the low-dimensional pixel point space Y that is homeomorphic to U is obtained. (Because the data in the position pixel space Y is too large, only five data are taken out to show its structure)
[0188] Y=[1.5761,1.5239,0.6454,…,-2.6334,-2.0134];
[0189] Calculate the corresponding fractal dimension according to the third step in this method:
[0190] D=2.0154;
[0191] The fitting error of this method is 0.0002...
example 2
[0194] Example 2: Using this method to image 3 Calculate the fractal dimension of the color image in, where image 3 The original image is a color image, because the patent application can only use black and white images, so the displayed image is a black and white image;
[0195] According to the first step of this method, the color attribute information of each pixel point in the grayscale texture image (that is, the pixel point position, gray value or three primary color component values) is regarded as a set of vector attributes of the pixel point, through a m The ×n matrix U is saved.
[0196] According to the second step of the method, the image information conversion method is performed on the matrix U, and then the low-dimensional pixel point space Y that is homeomorphic to U is obtained. (Because the data in the position pixel space Y is too large, only five data are taken out to show its structure)
[0197] Y=[1.1101,1.0069,1.1530,...,-1.6602,-0.9400];
[0198] ...
example 3
[0203] Example 3: Using this method to Figure 4 Incremental simulation test for part of the image data in ;
[0204] According to the first step of the method of the present invention, the color attribute information of each pixel point in the grayscale texture image (that is, the pixel point position, gray value or three primary color component values) is regarded as a set of vector attributes of the pixel point, through a The m×n matrix U is saved.
[0205] According to the second step of this method, the image information conversion method is performed on the matrix U, and then the low-dimensional pixel point space Y that is homeomorphic to U is obtained 1 .
[0206] Y 1 =[1.6309, -0.0771, -0.7982, 0.4624, -1.2180];
[0207] And according to the LLE method for Figure 4 Part of the image data in the calculation, the result Y 2 for:
[0208] Y 2 =[1.6309, -0.0771, -0.7982, 0.4624, -1.2180];
[0209] because Y 1 =Y 2 , so the experiment shows that the relationship...
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