The discrete cosine transform (DCT) represents an image as a sumof sinusoids of varying magnitudes and frequencies. The functionsof DCT computes the two-dimensional DCT of an image. The DCT hasthe property that, for a typical image, most of the visuallysignificant information about the image is concentrated in just afew coefficients of the DCT. For this reason, the DCT is often usedin image compression applications i) Write a Matlab Program toobtain low bit rate block and compressed image quality usingDiscrete cosine transform (DCT) coding ii) Detail eachsteps of compression and decompression and reduce the size to 8x8non-overlapping blocks with DCT quantized coefficients for blockingartifacts by Matlab program. iii) Highlight the resultsof reduced artifacts and validate the quality using PSNR value.Justify the result
