![]() ![]() If signatures are listed, click one, then drag it where you want. Type your text, then drag the text box where you want. See Rotate and modify shapes added to a PDF for more options. To increase or decrease the magnification, drag the green handle drag the blue handle to change the loupe size. Loupe : Drag the loupe to the area you want to magnify. Highlight : Drag the highlight where you want. You can highlight and zoom shapes using these tools: If it has green handles, use them to alter the shape. To resize the shape, use the blue handles. This tool appears only on computers with a Force Touch trackpad.Ĭlick a shape, then drag it where you want. Note: Unlike the Sketch tool, the Draw tool doesn’t recognize standard shapes. If Go to Page shows the wrong page of a PDF.If images or PDFs aren’t the correct size.If you can’t select or copy text in a PDF.See what an image looks like on another device.Extract an image or remove a background.Highlight, underline, and strike out text.by thresholding, pixel classification, or by temporarily dipping into another tool, such as ImageJ. There are other, faster, fancier ways to create similar Annotation objects, i.e. The name can be shown or hidden in the viewer using View ‣ Show names, or the shortcut N. You can set these quickly for a selected annotation by pressing the Enter key. Setting properties Īnnotations can also have properties set.įor analysis purposes, the most important of these is usually the classification.īut for display, there are also name and color properties. You can access this by right-clicking on a selected annotation. To help reduce this risk, annotations can be locked or unlocked. Locking & unlocking įor that reason, losing or accidentally editing annotations can be rather upsetting. This is something of a special case, covered in Manual counting. See Separating stains for more information. ![]() Like the Brush tool, the Wand tool adapts according to magnification: zoom out to select large regions, zoom in to select smaller, more detailed regions.Īdditionally, the Wand tool is influenced by any color transforms that have been applied – so these can be used to adjust the image so the areas of interest have higher contrast. It can also work well in selecting dense areas of cells surrounding by more space.īut if the contrast is lower, the wand can appear to go out of control… and it’s best to revert back to the ‘standard’ Brush tool. This provides a very powerful way to annotate regions quickly and with a high level of accuracy… provided they are substantially darker or lighter than the surroundings. Not content with painting only a small circular region, it will spread out into a much larger circle - but only for so long as the pixels have intensities similar to the one that was clicked on. The Wand tool is like a more enthusiastic brush tool. You can change the absolute size of the brush in the settings, and also optionally turn off the size adaption according to zoom. This works either in additive (normal) or subtractive ( Alt pressed) mode - enabling ROIs to be cleaned up to be much more precise, and also to create holes within existing ROIs. The brush can refine ROIs drawn with other tools. Holding down the Alt key while using the brush causes it to ‘subtract’ regions… basically acting as an eraser (or painterly equivalent). In other words, if you zoom in then the brush effectively paints small regions - while zoomed out it can quickly mark in large areas. The size of the brush adapts according to magnification. This would have limited call for excitement, but the Brush tool within QuPath has a few particularly useful features: The idea is simple: it each click of the brush selects a small circle, but by dragging the mouse across the image then a region is ‘painted’ that way. The Brush tool is probably the drawing tool I use the most for annotating regions. Otherwise, the ROI is finished by double-clicking on the image at the location where the final point should be. If you start a polygon by clicking and dragging, then the polygon is complete when the mouse button is released. It’s possible to switch while drawing the same region. The latter if better if you have a steady hand and want to draw a more detailed region. The former is better if you might want to edit the polygon later, but dragging vertices to different places. The Polygon tool is a good standard for drawing around regions.Ĭlick and drag to draw a continuous line (which will be split into spaced vertices by QuPath) Lines can be drawn using the Line tool, by clicking once for the starting point, and double-clicking for the end point. Rather than drawing rectangles or ellipses, Objects ‣ Annotations… ‣ Specify annotation can be used to set coordinates exactly - and thereby give more control over the exact size and/or location. ![]()
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