Research Article
A Multiresolution Image Completion Algorithm for Compressing Digital Color Images
Algorithm 1
Image compression and decompression using ANNs.
(1) Divide the original image in frequency domain into 8 × 8 pixel blocks and reshape each one | into 64 × 1 column vector. | (2) Arrange the column vectors into a matrix of 64 × 1024. | (3) Let the target matrix equal to the matrix in step 2. | (4) Choose a Gradient Descent Back Propagation learning algorithm to start training. | (5) Simulate the network with the input matrix and the target matrix. | (6) Obtain the output matrices of the hidden layer and the output layer. | (7) Post-process them to obtain the compressed image, and the reconstructed image, respectively. |
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