Philipp Schmid • 1/19/2026

Transparent PNG Stickers with Nano Banana Pro and Gemini interactions API

This article provides a detailed technical tutorial on creating production-ready transparent PNG stickers. It explains a workflow using the Gemini Interactions API (specifically the Nano Banana Pro model) to generate images on a chromakey green background, then using HSV color space detection and morphological cleanup to accurately remove the background, resulting in high-quality transparent images. It includes code snippets and compares the method to ML-based background removal.

0 comments

#computer vision #image generation #Gemini API