QUICK ANSWERStart with the tool that matches your immediate input.
Open Image Histogram Viewer first when its stated purpose matches the result you need now. Use Image Quality Analyzer only when it solves a separate next task.
This guide is for creators, marketers, designers, and website owners. Start with Image Histogram Viewer when your immediate task is to inspect your input with the Image Histogram Viewer and review a clear, useful report. Move to Image Quality Analyzer only when you also need to inspect your input with the Image Quality Analyzer and review a clear, useful report.
The goal is not to run two tools automatically. It is to finish the first narrow task, inspect its result, and then decide whether Image Quality Analyzer solves a genuinely different next step.
Both tools sit in Image & Design, but they handle different inputs or outcomes. Keeping those roles separate reduces repeated work and makes verification easier.