(10 marks) For JPEG image compression we apply Discrete Cosine Transform on a 8 x 8 pixel blocks. Suppose we have the fo

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10 Marks For Jpeg Image Compression We Apply Discrete Cosine Transform On A 8 X 8 Pixel Blocks Suppose We Have The Fo 1 (41.95 KiB) Viewed 17 times

10 Marks For Jpeg Image Compression We Apply Discrete Cosine Transform On A 8 X 8 Pixel Blocks Suppose We Have The Fo 2 (42.67 KiB) Viewed 17 times

(10 marks) For JPEG image compression we apply Discrete Cosine Transform on a 8 x 8 pixel blocks. Suppose we have the following input pixel block: [100 110 100 16 24 40 51 61 120 120 124 19 26 58 60 55 140 130 126 124 40 57 69 56 14 17 22 29 51 87 80 62 18 22 37 56 68 109 103 77 24 35 55 64 81 104 113 92 49 64 78 87 103 121 120 101 72 92 95 98 112 100 103 99 After applying DCT, we get the following coefficient matrix: 4 1 -58 9 13 -27 0 21 7 -9 -26 3 22 [592 -31 21 1 -54 146 82 -23 68 88 36 -26 -52 -69 4 13 -61 -49 -7 16 -14 -21 -9 2 9 1 -7 -7 -14 -12 6 13 5 -16 -2 2 29 37 -4 -22 18 15 -12 -11 52 35 -7 -12 -16] 9 18 -5 1 of 2
BANGLADESH To compress the image pixel block, the following quantization matrix is given: [16 11 10 16 24 40 51 611 12 12 14 19 26 58 60 55 14 13 16 24 40 57 69 14 17 22 29 56 51 87 80 62 18 22 37 56 68 109 103 77 24 35 55 64 81 104 113 92 49 64 78 87 103 121 120 101 98 112 100 103 99 72 92 95 Using the information given above: i. Compute quantized matrix. ii. Find the Huffman code for the elements in quantized matrix. iii. Compute compression ratio of the given input pixel block. ** END OF QUESTION **