Cartoon image compression method based on explicit hybrid harmonic diffusion
An image compression and image technology, applied in image communication, digital video signal modification, electrical components, etc., can solve the problems of limited color performance, long decoding time, low practicability, etc., to improve user experience, clear algorithm, and real-time strong effect
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[0034] A cartoon image compression method based on explicit mixed harmonic diffusion: first calculate the Laplacian image and double Laplacian image of the input image and extract feature lines based on them; then extract the Laplacian image The characteristic line is uniformly sampled and counted by Laplacian, and it is determined whether the line is a Laplacian curve according to the count value and a given threshold value, and all the processes that are not classified as Laplacian curves are regarded as double Laplacian curve; treat the image composed of all the characteristic line pixels as a binary image, and encode it using the JBIG standard; use the harmonic diffusion process table to encode the color of the rest of the image, use Green's function to approximate the harmonic process, and store each The Green parameters of the characteristic lines; decode the line information encoded by JBIG, restore it to a binary image and load it on the decoded image; finally, integrat...
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