![]() ![]() Select the column with image data (links).bacterial growth or bitmap representations of handwriting). It can be used for image comparison, while looking for similarities or discrepancies between selected data instances (e.g. The widget will look for an attribute with type=image in the third header row. The Image Viewer widget can display images from a data set, which are Selected images: Images selected in the widget.Note that we supply the annotation object for each.Displays images that come with a data set. # Create empty annotations structures for each canvas Imgs = makeimage.([ colorant"red " colorant"green " # Create some single-color images (just for testing purposes) makeimage(color) = fill(color, 100, 100) # Create the window and a 2x2 grid of canvases, each 300x300 pixels in size Here's an example of adding a 30-pixel scale bar to an image: In contrast, a "floating" annotation is not tied to a particular location in the image,Īnd will always be displayed at approximately the same position within the window even if you zoom or pan.Īs a consequence, "anchored" annotations are best for labeling particular features in the image,Īnd "floating" annotations are best for things like scalebars. If you zoom or pan, the annotation will move with the image, and may not even be shown if the corresponding position is off-screen. There are two basic styles of annotation: "anchored" and "floating."Īn "anchored" annotation is positioned at a particular pixel location within the image You can add and remove various annotations to images (currently text, points, and lines). Imshow(gd, gd, mriseg, nothing, zr, slicedata) Imshow(gd, gd, mri, nothing, zr, slicedata) State of the GUI by push!ing new values to these signals.įor example, using the "mri" image above, you can select the 5th slice with Reactive signals, and consequently you can even manipulate the Perhaps most interesting is the "roi"Įntry, which itself is another dictionary containing information about Imshow returns a dictionary containing a wealth of information about The dictionary and region-of-interest manipulations So as to avoid redraws with each subsequent change. Generally you should call it after you've finished assembling the entire window, Gtk.showall(win) is sometimes needed when using the lower-level utilities of this (if there is just one), or an array if you've specified a grid of canvases. Gui returns the window gui either returns a single canvas Imshow(canvases, testimage("lighthouse")) Using ImageView, TestImages, Gtk.ShortNames Note as you zoom via the mouse, the zoom stays focused around the mouse pointer location, making it easy to zoom in on some small feature simply by pointing your mouse at it and then Ctrl-scrolling. If you scroll while holding down Shift, it pans horizontally hold down Ctrl and you affect the zoom setting. If you have a wheel mouse, zoom in again and scroll the wheel, which should cause the image to pan vertically. Ctrl-double-click on the image to restore the full region. If you click on the image without holding downĬtrl, you can drag the image to look at nearby Again, the aspect ratio of theĭisplay is preserved. Typical rubberband selection, and once you let go the image display Next, Ctrl-click and drag somewhere inside the image. Here's a comparison of the two: aspect=:auto (default) If instead you want the image to fill the pane, try See that the aspect ratio of the image is preserved when you Try resizing the image window by dragging one of its corners you'll You can use imshow() if you want to choose an image using a file ![]()
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