template-matching

scale and rotation Template matching

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Template matching with matchTemplate is not good when your object is rotated or scaled in scene. You should try openCV function from Features2D Framework. For example SIFT or SURF descriptors, and FLANN matcher. Also, you will need findHomography method. Here is a good example of finding rotated object in scene. Update: In short, algorithm is … Read more

OpenCV template matching and transparency

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It doesn’t seem like OpenCV handles alpha the way you want it to. You have two options: Write your own cross-correlation method that will use the alpha channel Transform your images so your alpha channel becomes irrelevant Since the first option is straightforward, I will explore the second option here. I’m going to re-use the … Read more

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