Implementation of Image Sharpening algorithm in C++ & CUDA. The algorithm is based on this tutorial (with few changes) https://lodev.org/cgtutor/filtering.html#Sharpen
NOTE! This only works with 24-bit based uncompressed Bitmap format. Use this tool to convert your image into compatible format: https://online-converting.com/image/convert2bmp/ also, don't forget to choose Color option to 24 Bit (True Color).
I made this program as simple as possible, and didn't rely on third party library to run. The goal is to demonstrate how image sharpening algorithm implemented in standard CPU and GPU (CUDA) computation. The main focus is matrix calculation of the image and how to proceed it into sharpen image. Sample image included (filename: image_source.bmp), but you can replace it with your own.
CPU:
g++ main_cpu.cpp -o main_cpu
./main_cpuGPU:
nvcc --run main_gpu.cu