Chromakey technology is a visual effects technique and methodological approach within digital media production and computer graphics. It involves isolating a specific color range in a visual data stream to create transparency, enabling the seamless compositing of foreground elements onto an alternative background. As a research concept, it investigates algorithms and processes for robust color-based segmentation, spill suppression, and accurate edge preservation under varying conditions. Its significance lies in its foundational role in post-production workflows, enabling the efficient creation of virtual environments, integration of disparate visual assets, and expansion of creative possibilities in film, television, and interactive media.