If you open any popup image in the Android browser, then click in any place on the page, the image is being changed (colors/sharpness/whatever – I can’t define precisely, since I’m not an artist).
To see this effect, open a site with a popup image, which is implemented as a div with absolute positioning (say, http://highslide.com/ — the first site I’ve googled). The site should be open in the Android browser (I’ve tried Android emulator from Eclipse ADT plugin and Kindle Fire). Click on any preview to popup the image, then tap on the page (keep you finger on the screen) and look at the image the same time.
My question: what this effect is about and how to eliminate it? Why don’t I see it neither on PC nor on Mobile Safari? I have the same effect with my web-app, where it looks ugly and seems to be slowing a form, so I want to get rid of it.
A figure:

I’ve enlarged a portions of two shots, made before tapping on the arrow point, and after, and inserted them on top to show what I’m talking about.
Regards,
If every image on the page has the same physical size as specified in HTML/CSS, this effect disappears. That’s why I observed this in popups: their inner images usually are resized.
I have mixed feelings. Kinda satisfaction for finding it after all and hatred to Android developers for programming this feature.