Newbie help

[mountman]

Hi, my kids have screwed up a jpg photo on the computer. when i view the pic as a thumbnail, it is fine but when i open it fullscreen it looks like they have used the spray can or a paintbrush on it. what have they done and how can i reverse it? I am experimenting with gimp but i have little experience of image manipulation

 

[TonyGroves]

There's nothing you can do, at least not easily. You could try using various filters to see if you can make improvements, but you will never retrieve lost information.

 

[mountman]

if i view this pic as a thumbnail, it is perfect. it is only when i view the pic full screen it is changed. as such, it seems that information has not been lost, but the pic must change when viewed in a different way...any ideas anybody??

 

[mrijk]

The thumbnails are not generated on-the-fly but are stored on disk. That's why your thumbnail looks ok, since it was generated from your picture before it got messed up.

You could try the resynthesizer plug-in (

http://www.logarithmic.net/pfh/resynthesizer)

but it won't be easy.