Diff for "EMAN2/Galleries/Testimages"

Differences between revisions 8 and 14 (spanning 6 versions)

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:

#] 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 8 as of 2008-01-11 20:22:03 → 
  Size: 162
  Editor: DavidWoolford
  Comment:
+   ← Revision 14 as of 2008-01-11 20:53:38 → ⇥
  Size: 1112
  Editor: DavidWoolford
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
+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:

{{{

#] 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
-Line 2:
+Line 20:
+||{{{ e.process_inplace("testimage.gradient")}}}||{{{ e.process_inplace("testimage.gradient", {'axis','y'}) }}}||
-Line 3:
+Line 22:
+||{{{ e.process_inplace("testimage.axes")}}}||{{{ e.process_inplace("testimage.circlesphere") }}}||
-Line 4:
+Line 24:
+||{{{ 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)

}}}