Adobe golive demo11/19/2022 ![]() each of the "various dims" files to be in the same space as the first file. BrainSqueezer does its very best to squeeze, stretch, etc. Doing this, of course, is more computationally intensive and takes more time. You can read in files of different sizes (which is what you really need a coregistration program for anyway!) by clicking the check-box "Various dims OK" in the main menu. Any that are a different size are removed from the list. If you choose this option, prior to moving to the image menu, BrainSqueezer checks all of the files to make sure they are the same size as the first file. If you want, you can specify that only files with the same dimensions should be loaded, which will speed up the display. The default is that files of different dimensions are allowed. You can load all "*.img" files in a single directory by clicking "All files in a directory" and browsing for one of the files there. To remove a file from the list, click on the filename. To load a file, click on the word "Next" to browse for a file. You must load at least one file before moving to the image or histogram menus. The file menu is visible when you open BrainSqueezer. You can also move to a specific location by typing a value into the text boxes. Clicking within any image moves the current location to that point and updates all of the images. The Current location shows the location within the Reference image volume. Note that this is different from flipping the data itself ( see below). The "Flip" option lets you flip the display of all of the images so you don't have to look at upside-down pictures. Options include updating when the cursor is moved, or for a mouse click, or updating the current value for a cursor move but the image display only for a mouse click. "Update" refers to how frequently images are updated. subtraction, division (ratio), multiplication, etc. The "Math" menu lets you perform various mathematical operations between the Reference and Object images, e.g. The pulldown menus in this section let you set various parameters. The Reference and Object designations have two other purposes: (1) the "Math image" is created by doing e.g.Īnd (2) the contours are usually based on the Reference image. The "Reference" file is the target image you are trying to register to the "Object" file is the image volume you want to move around. If your images have even dimensions, you can select "-2" to zoom by 1/2. The "Zoom" parameter controls the size of the displayed images. The default is to allow files of different sizes. You may unselect "Various Dims OK" if all files should have the same dimensions as the first file, so different-dimensioned files will be removed from the filename list. "Globally" will scale allof the images to the same global min and max. ADOBE GOLIVE DEMO UPDATE"None" (the default) will keep the original data values, but the display update will be slower. "Each" indicates that each image will be scaled into the range 0-255, and converted to 8-bit data. The "Scaling" parameter controls how the images will be scaled once they are read in. Selecting the "images" option will cause all of the image files in the filename menu to be read in, and the images will be displayed. Options include the filename menu, the images, and histograms of each of the images. This menu lets you move between the Filename, Image, and Histogram menu, and lets you change parameters for reading and displaying images. On the left-hand side of the BrainSqueezer GUI is a control panel that is always visible. The basic algorithm was generously provided by John Votaw. Brainsqueezer then uses an IDL-based approach to reslice the object image according to the user-specified parameters.īrainSqueezer uses a trilinear interpolation via IDL's "INTERPOLATE" function. It does, however, provide visualization tools that let the user compare two data sets, and furthermore provides tools to let the user find an optimal fit. BrainSqueezer never ever never compares two data sets or tries to optimize a coregistration fit. part of the cerebellum or the posterior half of the brain is missing.īrainSqueezer's approach is entirely user-guided, or "by-eye". One of the data sets does not cover the entire brain, e.g.There is an abnormality such as a tumor or stroke.There is an artifact due to some aspect of data acquisition, such as a drop-out artifact encountered in some fMRI studies.Some examples where an automated approach will fail are: Welcome to Adobe GoLive 4 BrainSqueezer Coregistration DemoīrainSqueezer lets you perform "coregistration by eye", which is especially useful for incorrigible cases where an automated approach just cannot get the job done. ![]()
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