Paper porosity measuring and pore diameter analyzing method based on digital image processing
An analysis method and porosity technology, which is applied in the field of paper performance characterization, can solve the problems of inability to reflect the distribution of pores and the inaccuracy of paper porosity, and achieve the effect of saving sample consumption and saving time
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[0036] Example
[0037] Such as Figure 1-Figure 3 As shown, a paper porosity measurement and pore size analysis method based on digital image processing includes the following steps:
[0038] Step 1: Read the microstructure image of the paper cellulose fiber taken by environmental scanning electron microscope (SEM);
[0039] Step 2: Convert the image from RGB image to grayscale image, and then perform binarization processing to obtain a binary image;
[0040] The binarization process is specifically as follows:
[0041] Convert the image from the RGB format to a grayscale image, and then use dual thresholds to binarize the grayscale image to obtain a binary image BWa;
[0042] Divide the image into 100 small areas of 10x10, and use a local threshold for each small area to binarize the grayscale image to obtain a binary image BWb;
[0043] The binary image BWa and the binary image BWb are superimposed to obtain the final binary image.
[0044] Step 3: Use morphological methods to optimize...
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