white ellipse in black background
1 回表示 (過去 30 日間)
古いコメントを表示
hi every one.
i'm a beginner in matlab. i need to draw a white ellipse in a black background(512*512) as shown in the picture attached below.
i also have the center and axis of the ellipse.
i just need to implement the equation of ellipse:
if (x-a)2/A2 + (y-b)2/B2<1 assign 1 to pixels inside the ellipse
if (x-a)2/A2 + (y-b)2/B2>=1 assign 0 to pixels outside the ellipse
center of ellipse: (a,b)
A & B: min&max axis of ellipse
0 件のコメント
採用された回答
Walter Roberson
2017 年 7 月 31 日
編集済み: Walter Roberson
2017 年 7 月 31 日
[x, y] = meshgrid(1:512, 1:512);
result = (x-a).^2./A.^2 + (y-b).^2./B.^2 < 1;
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Image Processing Toolbox についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!