Testing with the International Standard Test Image Lena

We will conduct tests using the International Standard Test Image Lena. The implementation compares two distinct image magnification methods: "pixel-based image magnification" (which directly replicates adjacent pixels to increase resolution) and "bilinear interpolation-based image magnification" (which calculates new pixel values using weighted averages of four neighboring pixels). The code features detailed comments and follows a clear, logical structure to ensure easy comprehension. We are confident that even beginners in image processing will gain substantial practical knowledge from studying this implementation. The pixel-based approach involves: - Direct pixel replication through nested loops - Simple nearest-neighbor algorithm implementation - Basic matrix manipulation techniques The bilinear interpolation method includes: - Weighted average calculations using surrounding pixels - Coordinate mapping and boundary handling - Implementation of interpolation coefficients Both methods demonstrate fundamental image processing concepts through practical MATLAB or Python code examples.