Convert signal to image??
12 次查看(过去 30 天)
显示 更早的评论
Hy,
I read analog signal from external device "ECG" by serial rs232 connection, I need to cut this signal to stored as image by code in matlab because my m file program is depended of Image processing not signal processing and my project is about image processing, so I can't write my program by signal processing.
my problems is:
1- read the signal from serial port.
2- convert this signal to image, and stored this image in current folder of matlab.
3- Please, I need answers for the last problems as codes not as Block. because I work at M file.
thanks for everyone try to help me,
0 个评论
回答(2 个)
Image Analyst
2012-11-5
You could use reshape() to turn your 1D signal into a 2D image, though I don't know if that would help. Anyway, many or most functions in the Image Processing Toolbox work on 1D images (just a single row or column of "pixels") so you may not need to do anything at all with your 1D ECG signal..
12 个评论
kh rezaee
2021-2-6
Use spectogram functions of signal to convert as an image. I guess you need this method to process images using deep learning. It should be noted that you must segment the signal before applying it to the network. Use these functions:
spectrogram(1DSignal)
pspectrum(1DSignal,FS,'spectrogram')
wvd(1DSignal,FS,'smoothedPseudo')
4 个评论
Walter Roberson
2021-2-7
wvd() was introduced in R2018b, in the Signal Processing Toolbox. pspectrum needs R2017b (and so would not work in R2017a)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!