Irfanview: how to zoom-in without having the image blurred; I need it for GUI development to see large pixels.
I found the solution by reading changelog
New display option: Use Resample for zooming (Menu: View->Display options)
So from "View" menu, select "Display options" and turn off "Use resample".
What you're looking for is technically known as "Nearest Neighbor Interpolation".
i would use an application like
- Microsoft's ZoomIt
they all 'preserve hard edges of pixels'.