I need a few frame grabs at high res. When I exported them with quicktime conversion my only choice was low, medium, high, and best. I chose best, but that is still not 300 dpi. Is there a way to export a higher resolution image?
Your video is 720 pixels by 480 pixels (or whatever based on format).
That will translate roughly to 72dpi IF there were such a thing.
NOW...
You can take that image INTO PhotoShop and change the DPI... if you wish even to 9000... but it won't have any affect on the quality of the image nor the size unless you tell it to adjust the size... but then you'll still have the poor quality of the original capture - only bigger.
All video from FCP exports at *the pixel dimensions of the video image*. DPI is not particularly relevant here.
For example, DV is 720x480 non-square pixels. In square pixel world, it is an image of 640x480 pixels. By default FCP assigns a DPI of 72. It really doesn't matter if it is 72 or 300 dpi because *you have the same number of pixels*.
If you want greater pixel density (and a commensurately smaller image) open up whatever you have exported from FCP and change the DPI settings in Photoshop. If you have "resize image" turned off, you can see the relationship between DPI and image dimensions (in inches). If you have it turned on, you can see what increasing the pixel count by a factor of 4 without adding more image information does to image quality.
The only way to get a higher def image is to start with more pixels.
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Export Still Image at 300dpi
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