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hi in this session Iamp;#39;m going to discuss about how the entropy encoding is done inject the compression standard so there are 64 coefficients arranged in a matrix of a weight first Iamp;#39;m going to discuss how these 8x8 matrix is converted into a vector through the zig zag scan so out of these is 64 coefficients 1 will be the DC coefficient and remaining 63 or AC coefficients then I will discuss how the DC coefficients are encoded by using differential encoding and then the run length encoding of AC coefficients so vectoring is a process of converting there are 2 dimensional matrix into a 1 dimensional vector so now you consider yeah 8x8 matrix of quantized coefficients so here the blue curve balls represent the DC coefficient and the remaining all our AC coefficient so in order to convert these a matrix into a vector J Pig uses the zig zag scan the scanning order is illustrated by a yellow line will trace the entire matrix so now you will first place twelve then six
