If you're using Python, you can use a library such as matplotlib for this. It can take a numpy array and plot it as a standard chart using the functionplot or as an image usingimshow. The resulting image/plot can be displayed in an interactive window, or saved to a file, or it shows inline in your Jupyter notebook if you're using that.

There are other (better?) Python chart plotting libraries but the functionality is basic and IMO matplotlib is easier to get started with (perhaps just because it's older and more established).

You can also do this using OpenCV, if your input is an OpenCV image. Its plotting functions are named similarly to the matplotlib ones. OpenCV is available in Python, C++, and a handful of other languages.

• $\begingroup$Thank you for the answer. but what is the algorithm if I one wants to implement it and not using 3rd parties? I use c# language.$\endgroup$

  ali

  – ali

  2017-11-13 10:18:02 +00:00

  CommentedNov 13, 2017 at 10:18
• $\begingroup$Just to note that my question referred to how the black and white stripped image is created given the sine or whatever signal.$\endgroup$

  ali

  – ali

  2017-11-13 10:28:14 +00:00

  CommentedNov 13, 2017 at 10:28
• $\begingroup$In that case, could you edit your question and make it clearer? Regardless of language, the short answer is "make an array of values from your function and then convert it into the image type you're using".$\endgroup$

  Dan Hulme

  – Dan Hulme

  2017-11-13 10:40:48 +00:00

  CommentedNov 13, 2017 at 10:40
• $\begingroup$Sorry about the question not being clear enough. I have updated it. I still don't understand how to do it could you give an example please.$\endgroup$

  ali

  – ali

  2017-11-13 12:04:35 +00:00

  CommentedNov 13, 2017 at 12:04

• image-processing
• antialiasing