Egg 9: Fisheye

Challenge

[mobile challenge]

Egg number nine is hidden in the app. You’ve already seen it, haven’t you?

Go catch it and squint like a fish

Solution

The (distorted) image of the egg is the splash screen of the app. In the apk we find the image:

we open the screenshot in gimp, crop to give only the QR code, and distort until it becomes readable

in Gimp we used Filters->Distorts->Lens Distortion,

This leads to the following image which the app can read

Flag