Zaphod questions

Zaphod answers

• How to use SimpleBlobDetector in OpenCV?
• How to find normals to an edge in an image
• Achieving heat vision in OpenCV [closed]
• different results using imfilter and conv2
• 2D-3D homography matrix estimation [closed]
• Comparing similar images as photographs -- detecting difference, image diff
• How do I convert focal length in pixels to millimeter (mm)?
• Ellipse detection with OpenCV
• A good approach for detecting lines in an image?
• cost / mapping function for determining center of object based on detected features