Difference between revisions of "Publication Quality Images"
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The answer is deceivingly simple. There are two steps in the process. First, setup your scene and use [[Cmd ray|ray]] like this | The answer is deceivingly simple. There are two steps in the process. First, setup your scene and use [[Cmd ray|ray]] like this | ||
ray 2400, 2400 | ray 2400, 2400 | ||
| − | From this you will get a large square image. You can now resize it to X inches where X=A*B, A and B factors of 2400 (eg: 8 inch photo @ 300DPI, 4 inch photo at 600DPI, 2 inch photo @ 1200DPI). Using [[PhotoShop]] or [[GIMP]] resize the photo to the appropriate height and width while making sure also to tell the [[PhotoShop]] or [[GIMP]] what resolution the image is. | + | From this you will get a large square image. You can now resize it to X inches where X=A*B, A and B factors of 2400 (eg: 8 inch photo @ 300DPI, 4 inch photo at 600DPI, 2 inch photo @ 1200DPI). The fomrula for creating images is: |
| + | rayVal = inches * DPI | ||
| + | where rayVal is the value you pass to "ray". Thus, an 8 inch square photo at 72, 100, and 300 DPI would be created by the following commands: | ||
| + | ray 572,572 # 8inch * 72dpi | ||
| + | ray 800,800 # 8inch * 100dpi; or a 4inch * 200 DPI photo; or 1x800. | ||
| + | ray 2400,2400 # 8inch * 300dpi; 6"x400dpi, etc... | ||
| + | |||
| + | Using [[PhotoShop]] or [[GIMP]] resize the photo to the appropriate height and width while making sure also to tell the [[PhotoShop]] or [[GIMP]] what resolution the image is. | ||
| + | |||
=====GIMP 2.0===== | =====GIMP 2.0===== | ||
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You should be set. | You should be set. | ||
| − | + | [[Category:Image_Manipulation|Publication Quality Images]] | |
| − | [[Category: | ||
Revision as of 09:53, 12 May 2005
High Resolution (DPI) Images
Creating Resolution Specific Images
We often get the question:
Q. How do I create a X DPI image using PyMol's 'ray' command?
The answer is deceivingly simple. There are two steps in the process. First, setup your scene and use ray like this
ray 2400, 2400
From this you will get a large square image. You can now resize it to X inches where X=A*B, A and B factors of 2400 (eg: 8 inch photo @ 300DPI, 4 inch photo at 600DPI, 2 inch photo @ 1200DPI). The fomrula for creating images is:
rayVal = inches * DPI
where rayVal is the value you pass to "ray". Thus, an 8 inch square photo at 72, 100, and 300 DPI would be created by the following commands:
ray 572,572 # 8inch * 72dpi ray 800,800 # 8inch * 100dpi; or a 4inch * 200 DPI photo; or 1x800. ray 2400,2400 # 8inch * 300dpi; 6"x400dpi, etc...
Using PhotoShop or GIMP resize the photo to the appropriate height and width while making sure also to tell the PhotoShop or GIMP what resolution the image is.
GIMP 2.0
In Gimp, load your image (it'll most likely be very large) then
- Select:
Image -> Scale Image -> 'Print Size & Scale Image Section' change 'New Width' to whatever width you decided on before.
- Save Image (File->Save)
You should be set.