How to know a square object's orientation?
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Ingrid Lopes
el 18 de Abr. de 2020
Comentada: Ingrid Lopes
el 18 de Abr. de 2020
Hello, I have to scan several images of rectangles and rotate 45º only the ones that already have a 45º rotation. I tried to find the orientation using regionprops with Orientation, but it doesn't work, for the rectangles that were diagonaly placed I found all diferent types of values like 3.5 or -4.7 to -68. Anyone know how to discover the orientation of rectangles?
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Image Analyst
el 18 de Abr. de 2020
Try getting the perimeter using bwboundaries() then using fitPolynomialRansac() (in the Computer Vision Toolbox) to get the equation of one of the sides.
boundaries = bwboundaries(binaryImage);
Then use regionprops() to find the centroid and bounding box
props = regionprops(binaryImage, 'BoundingBox', 'Centroid');
and crop it out and rotate it and paste it back in. I'm attaching copy and pasting image demos.
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