How to rotate back a streched image?
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I have an image which is stretched in one direction. How can I turn it back to normal plane, so it becomes again a circle? I know about the scaling and calibration in both directions. Suppose that the pixel size in left-to-right direction is two times the one in up-to-down direction.
Thanks so much.
Steven
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Image Analyst
2014-3-13
编辑:Alex Taylor
2014-3-13
[rows, columns, numberOfColorChannels] = size(originalImage);
scaledImage = imresize(originalImage, [rows, int32(columns/2)]);
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Image Analyst
2014-3-14
No, it probably won't. Once you've segmented the image into circle and non-circle (foreground and background) actually whitening or blackening is unnecessary. Just use the binary image in regionprops() - no whitening of background is needed to make any measurements.
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