Diff for "EMAN2/Galleries/Testimages"

Differences between revisions 14 and 15

EMAN2 includes a good selection of test images that can be generated in no time at all. They come in many shapes and forms, from simple gradients and shapes to basic noise models. To create a test image start by running e2.py and by creating an empty image that is appropriately sized, for example as follows:

#] e2.py

Welcome to EMAN2
Prompt provided by IPython
Enter '?' for ipython help

In [3]: e = EMData()

In [4]: e.set_size(256,256)

Then issue one of the commands embedded below in the table to generate the test image

attachment:xcoord.png	attachment:ycoord.png
`e.process_inplace("testimage.gradient")`	`e.process_inplace("testimage.gradient", {'axis','y'})`
attachment:axes.png	attachment:circle.png
`e.process_inplace("testimage.axes")`	`e.process_inplace("testimage.circlesphere")`
attachment:scurve.png	attachment:gaussnoise_large.png
`e.process_inplace("testimage.scurve")`	`e.process_inplace("testimage.noise.gauss")`

Finally, you can display the image

In [5]: e.process_inplace("testimage.scurve")

In [6]: display(e)

-  ⇤ ← Revision 14 as of 2008-01-11 20:53:38 → 
  Size: 1112
  Editor: DavidWoolford
  Comment:
+   ← Revision 15 as of 2008-01-11 20:54:41 → ⇥
  Size: 1161
  Editor: DavidWoolford
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-EMAN2 includes a good selection of test images. They come in many shapes and forms, from simple gradients and shapes to basic noise models. To create a testimage start by running e2.py, and creating an empty image that is appropriately, for example as follows:
+EMAN2 includes a good selection of test images that can be generated in no time at all. They come in many shapes and forms, from simple gradients and shapes to basic noise models. To create a test image start by running e2.py and by creating an empty image that is appropriately sized, for example as follows: