Image Processing: Poisson Image Blending with Implementation

This article provides an in-depth exploration of Poisson Image Blending technology, a widely-used method in the field of image processing. We will thoroughly explain the implementation of Poisson image blending methodology and its applications in image editing, image restoration, and image composition. The core algorithm solves the Poisson equation to achieve seamless gradient-domain blending, typically implemented through sparse matrix operations and iterative solvers like the conjugate gradient method. Our discussion includes key programming components such as gradient calculation, mask processing, and boundary condition handling. The accompanying program demonstrates practical implementation using OpenCV or similar libraries with functions for gradient extraction and Poisson equation solving. Through this article, readers will gain comprehensive understanding of how to apply Poisson image blending technology to solve practical image processing challenges and effectively utilize this technique in future professional work.