4/1/2024 0 Comments Edge blending math![]() ![]() The math behind alpha blending is straight forward. In the feature image on the top of this article, the foreground image is shown on the top left, the gray scale alpha mask is shown on the top right, the background image is shown on the bottom left, and the composite image obtained by blending the foreground image and the background image using an alpha mask is shown in the bottom right. This transparency mask is often called the alpha mask or the alpha matte. in a transparent PNG), but it can also be a separate image. The transparency is often the fourth channel of an image ( e.g. What is alpha blending?Īlpha blending is the process of overlaying a foreground image with transparency over a background image. We are sharing code in both C++ and Python. Want to overlay a transparent PNG image over another image? Well, this tutorial will help you do that in OpenCV. In this tutorial, we will learn how to alpha blend two images. ![]()
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