As seen below, by applying a z transform to an MRI stack using different projection methods, the results can be very different. The appropriate projection type will vary depending on the type of data being represented. There are six different projection types to choose from: average intensity, maximum intensity, minimum intensity, sum slices, standard deviation, and median. The default for these values is the endpoint slices of the stack. When Z Project opens, it prompts for a start and stop slice, which will determine the range of the stack that will be included in the z projection. This process may be used to highlight specific data from the stack and is accessed using Image › Stacks › Z Project… Z Project is a method of analyzing a stack by applying different projection methods to the pixels within the stack. There are several ways to “flatten” the 3D stack. A montage will allow the 3-D dataset to be visualized in 2-D, but results in each frame being very small. ![]() If you’d like to help, check out the how to help guide! Stack-ProjectionsĪ z-series is generally difficult to represent as a 2-D image for publication purposes. The content of this page has not been vetted since shifting away from MediaWiki.
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