9. May 2015

How to decode stereogram by GIMP

Some time ago I wrote article How to decode stereogram by Photoshop.

I made a small experiment and it’s possible to achieve similar results by GIMP.

Here is stereogram (Magic Eye Picture) created by Easy stereogram builder.


Open file in GIMP. Duplicate the layer.


Change layer mode to Difference.


Select Move tool from GIMP toolbox (M).


Start moving the layer to the right. You can use arrows to move the layer. If you prefer mouse then click, press and hold CTRL key to avoid shifting in both X and Y axes.

Here is the result:



12. July 2013

How to decode stereogram by Photoshop

Stereograms are funny. Some stereograms are very easy. Sometimes it’s very hard to decode the content of stereogram.

If you can’t see the content of stereogram there is still way how to see it. You can use Photoshop.

Here is stereogram (Magic Eye Picture) created by Easy stereogram builder.

stereogram-sampleOpen the file in Photoshop. Select whole content and copy it into new layer (CTRL+A, CTRL+C, CTRL+Shift+N, CTRL+V).

Right click on the newly created layer and choose Blending options, set Blend Mode to Difference. The image should change to complete black.


Change to Move tool (press V) and start moving with the new layer to the right. After small move image should appear.

stereogram-photoshop-resultEasy 🙂

You can play with further Photoshop filters to produce a better result.