![]() ![]() This provides a quick and accurate tool useful for the digital recording of morphostatic foot study parameters and their control. You can then drag the points to warp the shape of the image. The reliability and validity of a method to measure, assess, and record the podometric indices using Photoshop CS5 software has been demonstrated. This tool allows you to add anchor points to your image. Moreover, the validity test clearly showed no difference between techniques (ICC, 0.99-1). The reliability test for all of the indices showed high values (ICC, 0.98-0.99). Validity was obtained by intraclass correlation coefficient (ICC). Test-retest was used to determine reliability. ![]() The Hernández-Corvo, Chippaux-Smirak, and Staheli indices and the Clarke angle were calculated by manual method and by computerized method using Photoshop CS5 software. Three trials for each participant were performed. Footprints were recorded in static bipedal standing position using optical podography and digital photography. We sought to assess the reliability and validity of a new method of footprint assessment in a healthy population using Photoshop CS5 software (Adobe Systems Inc, San Jose, California).įorty-two footprints, corresponding to 21 healthy individuals (11 men with a mean ± SD age of 20.45 ± 2.16 years and 10 women with a mean ± SD age of 20.00 ± 1.70 years) were analyzed. However, it is sometimes useful to apply standard measurement methods of recognized evidence with an easy and quick application. So we do some quick division: 157529/152.374 and we get 1033.Several sophisticated methods of footprint analysis currently exist. By default, the Ruler tool displays distance in. You’ll see the ruler scale and info panel appear around your image. Alternatively, you can use the keyboard shortcut Ctrl + R (for Windows) or Cmd + R (for Mac) to do the same. So we know that one square meter is 152.374px and our selected area is 157,529px. If you can’t see the Ruler tool when you open your image in Photoshop, select View from the menu, then select Rulers. Change the “Source” dropdown box in the Histogram window to Selected Layer and write down the number under Pixels. If it doesn’t have the numbers underneath it, click the drop down box in the top right hand corner of it and go to Expanded View.Ĥ. ![]() Go to the Window Menu and bring up the Histogram. ![]() Set the tolerance to 1 and untick Antialias and Contiguous (it should select everything you’ve painted).ģ. Use the Magic Wand Selection Tool to select the area you just painted. Step 21: Taking Advantage of Photoshop CS5s Ruler Tool. Make sure you set the brush to have a hardness of 100%.Ģ. Create a new canvas in Photoshop with Width at 1893px, Height at 2840px, and Resolution at. Make a new layer, and using a wonderful bright colour, paint over the area you want to calculate the size of. This gives us 12.344 pixels per meter and if we square it we get 152.374px per square meter. If no marquee is visible, increase the magnification of your image view. With the Single Row or Single Column Marquee tool, click near the area you want to select, and then drag the marquee to the exact location. So from this we can work out that there’s 246.88 pixels in 20 meters. Dragging a marquee from the corner of an image (left), and from the center of an image (right) by pressing Alt/Option as you drag. In the ruler tool options (top of the screen usually), make sure “Use Measurement Scale” is unticked. Use the Ruler Tool in Photoshop (hidden under the eyedropper tool) and select the distance for your scale.ģ. If you’ve got a scale marker on your map, use that, otherwise you’ll need to measure a distance that you know, in this case I used a basketball court (marked as 20mx33m).Ģ. In this guide I’m using Photoshop CS5 for Mac, most of the concepts will be similar for the other versions.įirst up: Scan your map and get it into Photoshop Working out the Scaleġ. Here’s a quick guide I wrote on how to use Photoshop to easily measure an area on a Map using Photoshop. ![]()
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