image rotation along x and y axis using bilinear interpolation
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I am rotating the image by theta1 along x axis and theta2 along y axis using the mapping equation: f(x,y)=f([cos(theta1)*x+sin(theta1)*y]/cos(theta1-theta2),[-sin(theta2)*x+cos(theta2)*y]/cos(theta1-theta2)). Now I am facing two problems here: 1. if theta1 and theta2 are taken different then image gets cropped. So, how to set the size of output that no matter what you take as theta1 and theta2, the complete image is obtained. 2. How to re-rotate the above result to get the intial image again using bilinear interpolation.
I am enclosing the code, Please do help me.
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Image Analyst
2015 年 2 月 4 日
Why reinvent the wheel? Just use imresize(). It has a bilinear option.
5 件のコメント
Image Analyst
2015 年 2 月 5 日
rotatedImage = imrotate(originalImage, 30); % Rotate 30 degrees.
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