Hi sir, my image is divided into 4 equal halves:my name is "cc",my 4 blocks are named as 'i1','i2','i3','i4'. i want to access 1st block (i1),which is saved under the name 'o'(i.e o=1).now i need to extract 1st block matrix in image cc

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kaavya subramani 2015-8-25

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https://ww2.mathworks.cn/matlabcentral/answers/236074-hi-sir-my-image-is-divided-into-4-equal-halves-my-name-is-cc-my-4-blocks-are-named-as-i1-i2

评论： kaavya subramani 2015-8-25

采纳的回答： Walter Roberson

help me sir

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Walter Roberson 2015-8-25

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https://ww2.mathworks.cn/matlabcentral/answers/236074-hi-sir-my-image-is-divided-into-4-equal-halves-my-name-is-cc-my-4-blocks-are-named-as-i1-i2#answer_190264

在 MATLAB Online 中打开

 y = {i1, i2, i3, i4};
 y{o}

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kaavya subramani 2015-8-25

ThankYou sir

kaavya subramani 2015-8-25

if suppose o=[1 3 4 2....].The elements indicates 1st frame's 1st block matrix,2nd frame's 3rd block matrix,3rd frame's 4th block matrix,4th frame's 2nd block matrix and so on.how to apply "a-b/2" for all frames in for loop(in first iteration a=1st frame,b=2nd frame;in 2nd iteration a=1st frame b=3rd frame.....,like comparsion of all frames with all other frames).how to do using loop sir

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