Make 256by 256 by for loop

Yes, like Matt said, give your code, because your supervisor wanted you to do it with a for loop. He did not want Matt to give him for-loop code. He wanted you.

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Answer 2

Image Analyst 2022-3-20

1
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https://ww2.mathworks.cn/matlabcentral/answers/1675934-make-256by-256-by-for-loop#answer_922299

编辑：Image Analyst 2022-3-20

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This is just super basic assigning of values. If you can't do that, then you won't be able to do anything more in MATLAB once you have that image. Then you'll have to ask us how to do the next part. Become self sufficient by investing only a short 2 hours here:

MATLAB Academy - Free 2 hour training

After that you'll easily be able to make that image on your own. Hint -- some functions that may be involved

zeros(), ones(), linspace(), round(), tril(), triu(), as well as basic assignments like

ramp = 1:256;
grayImage(row1:row2, col1:col2) = 0;

Use polyfit() and polyval() if you want to burn in slanted white lines.

Not only will you be able to make that simple image but you'll be set up to do lots more complicated ans sophistcated things too. It's well worth 2 hours of your time.

For the text, you can use text() if you want the text in the overlay above the image. If you have the Computer Vision Toolbox you can use insertText() to burn text into the image pixels.