Prepare a person’s portrait before uploading it by cropping it to the ideal personnel picture size, 600 x 600 pixel using Photoshop, Gimp (available in the TUMPC software center) or another image manipulation software of your choice.
The 9-box grid marker of the crop tools should be size in a way that the upper horizontal line touches the top of the eye brows while the lower one lies on the chin line. Usually, both vertical lines should now be approximately between the ears and the cheekbones.
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