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Onomitra Ghosh

MathWorks

Last seen: 10 days ago |  Active since 2011

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Answered
HDP 3.1.1 and MATLAB R2019a Compatability
Brian, can you provide some more details on the problem you are running into when running the mapreduce command. A code example ...

5 years ago | 0

| accepted

Answered
Data sorting.
Get them all in a cell array without the header and use the sortcell function according to the column you want to sort: <htt...

12 years ago | 0

Answered
getframe problem
You can try the workarounds mentioned in: <http://www.mathworks.com/support/bugreports/384622>

12 years ago | 3

Answered
Summing common elements of a matrix together
May be something like: A = [1 1 2 2 3 3 3]; B = [1 2 3 4 5 6 7]; C = []; for idx = unique(A) C(end+1) = sum...

12 years ago | 0

Answered
Taking images from a video
I am guessing that you already have a video file. If that is the case then you can use the VideoReader class to read the frames ...

12 years ago | 0

| accepted

Answered
random error with frame size making a video
Based on the error message, it seems that the not all of the frames in Mv are of the same size. Something in the way the figure ...

12 years ago | 0

Answered
AVIREAD unable to locate decompressor when H264 codec is present
It may be the case the H.264 decoder present is a 32 bit version and not 64 bit one. Windows Media Player (and many other applic...

12 years ago | 0

| accepted

Answered
logical indexing
Your "b" matrix is in double. You need to convert that to logical values for logical indexing: >> a(boolean(b)) ans = ...

12 years ago | 0

Answered
Use video Live stream
You will need the Image Acquisition Toolbox for that. You can look at the examples provided at: https://www.mathworks.com/help/i...

12 years ago | 1

| accepted

Answered
Use of movie(M) command
How did you extract the frames and how is the data in MATLAB? MOVIE is good to view the video in MATLAB. However if you want to ...

13 years ago | 0