How can I get 300 dpi resolution or about when saving tiff files in tksurfer?
Hi Knut the tiffs written by tksurfer are 600x600 regardless of what DPI you set. You can change the dpi with convert (or photoshop), but it won't change the # of pixels.
cheers Bruce
On Thu, 6 Dec 2012, Knut J Bjuland wrote:
How can I get 300 dpi resolution or about when saving tiff files in tksurfer? _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Perhaps you can maximize the tksurfer window on a large monitor, take a whole screen screenshot, and then in a photo editing program: decrease the physical size of the image (in mm or inches) while not decreasing the matrix size. You can do this in photoshop in Image > Image Size > And then change the document size until the resolution is 300. This will increase the DPI to make nice figures. What Bruce suggests will just upsample the image (without adding detail), which is not what journals have in mind when they ask for 300dpi figures. Keep in mind that the document size is the printable size, so your image will get smaller on the printed page when you do this. Often, figures have multiple panels and if you take each panel as a full screen image on a large monitor and then reduce the size you will have more than 300dpi to spare in the end result.
Peace,
Matt.
On 12/6/12 3:22 PM, "Bruce Fischl" fischl@nmr.mgh.harvard.edu wrote:
Hi Knut the tiffs written by tksurfer are 600x600 regardless of what DPI you set. You can change the dpi with convert (or photoshop), but it won't change the # of pixels.
cheers Bruce
On Thu, 6 Dec 2012, Knut J Bjuland wrote:
How can I get 300 dpi resolution or about when saving tiff files in tksurfer? _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
If you want to get a figure with arbitrarily high resolution regardless of the screen size, have a look at PySurfer*. It's not an official part of freesurfer but can display many of the freesurfer files. It can produce high resolution figures by moving the camera, taking screenshots and then assembling them.
*http://pysurfer.github.com/index.html
Best,
Martin
On 12/06/12 16:40, Matt Glasser wrote:
Perhaps you can maximize the tksurfer window on a large monitor, take a whole screen screenshot, and then in a photo editing program: decrease the physical size of the image (in mm or inches) while not decreasing the matrix size. You can do this in photoshop in Image > Image Size > And then change the document size until the resolution is 300. This will increase the DPI to make nice figures. What Bruce suggests will just upsample the image (without adding detail), which is not what journals have in mind when they ask for 300dpi figures. Keep in mind that the document size is the printable size, so your image will get smaller on the printed page when you do this. Often, figures have multiple panels and if you take each panel as a full screen image on a large monitor and then reduce the size you will have more than 300dpi to spare in the end result.
Peace,
Matt.
On 12/6/12 3:22 PM, "Bruce Fischl" fischl@nmr.mgh.harvard.edu wrote:
Hi Knut the tiffs written by tksurfer are 600x600 regardless of what DPI you set. You can change the dpi with convert (or photoshop), but it won't change the # of pixels.
cheers Bruce
On Thu, 6 Dec 2012, Knut J Bjuland wrote:
How can I get 300 dpi resolution or about when saving tiff files in tksurfer? _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Hi Bruce, Do you upsample the tiffs from tksurfer when making image for publications? Or do you use another program in FreeSurfer suite?
Knut J
On 12/06/2012 10:22 PM, Bruce Fischl wrote:
Hi Knut the tiffs written by tksurfer are 600x600 regardless of what DPI you set. You can change the dpi with convert (or photoshop), but it won't change the # of pixels.
cheers Bruce
On Thu, 6 Dec 2012, Knut J Bjuland wrote:
How can I get 300 dpi resolution or about when saving tiff files in tksurfer? _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
What physical size do you need them? I use either convert in unix or photoshop
On Dec 7, 2012, at 1:36 AM, Knut J Bjuland knutjbj@hotmail.com wrote:
Hi Bruce, Do you upsample the tiffs from tksurfer when making image for publications? Or do you use another program in FreeSurfer suite?
Knut J
On 12/06/2012 10:22 PM, Bruce Fischl wrote:
Hi Knut the tiffs written by tksurfer are 600x600 regardless of what DPI you set. You can change the dpi with convert (or photoshop), but it won't change the # of pixels.
cheers Bruce
On Thu, 6 Dec 2012, Knut J Bjuland wrote:
How can I get 300 dpi resolution or about when saving tiff files in tksurfer? _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
freesurfer@nmr.mgh.harvard.edu
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Bruce Fischl -
Knut J Bjuland -
Martin Luessi -
Matt Glasser