MATLAB: How to copy one rgb image to another

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How to copy the rgb image inside yellow rectangle to a blank rgb image? I know the coordinates of the rectangle.

Best Answer

you can extract your image im

a=im(x0:x1,y0:y1,:)

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MATLAB: One measure greater than another

Note than an even simpler way to extract data from a table is with dot indexing:

Wanted = T.SFStartFreqHzoffundamental;  %equivalent to T{:,'SFStartFreqHzoffundamental'}
Wanted1 = T.MaxFHzfundamental;          %equivalent to T{:,'MaxFHzfundamental'}
mask = Wanted > Wanted1;

To keep only the portion of the table for whick mask is true:

Tinvalid = T(mask, :)  %Not that this returns a table since we're using () indexing

which can be done in only one line:

Tinvalid = T(T.SFStartFreqHzoffundamental > T.MaxFHzfundamental, :)

If you want to know the row indices, use find:

invalidrows = find(T.SFStartFreqHzoffundamental > T.MaxFHzfundamental)

MATLAB: To equate one value to another

May be like this:

Let S - your signal.

m = min(S);
detph = 10/(max(S) - m)*(S - m) + 5;

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Related Solutions

MATLAB: One measure greater than another

MATLAB: To equate one value to another

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