plot pixel values in circular image

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Alina tom
Alina tom 2018-5-14
评论： Alina tom 2018-5-17
Hi all
I have multiple lines each size is 512x1. I want to plot them with a degree increment to make a circular shape image. But don't know how to plot them. Can anyone help me?

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回答（1 个）

Image Analyst
Image Analyst 2018-5-14
Use sind() and cosd() to create the x and y endpoints of the line, x1,x2,y1,y2. Then call
line([x1,x2], [y1,y2], 'Color', 'k', 'LineWidth', 2)
Sounds like homework, so give it a try yourself. Have a for loop over all angles. Here's a start:
for angle = 1 : 20 : 360
x1 = lineLength * cosd(angle......
line([x1,x2], [y1,y2], 'Color', 'k', 'LineWidth', 2)
hold on;
end
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Image Analyst
Image Analyst 2018-5-16
See if my copy and paste demo works for you. You can cut out a line, rotate it, and paste it onto a canvass image, if that's what you want to do.
Alina tom
Alina tom 2018-5-17
Sir can you guide me how I fuse/ combine two images . one image is 2d having dimensions 512x271 and other image is 3d having dimensions 512x271x512. I want to combine them to make one image

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