If all you want for Christmas is a perfect mask, fast.. here's how: - VertusTech

If all you want for Christmas is a perfect mask, fast.. here’s how:

Here’s a quick Christmas themed example utilising the patch tool & the color workspace. These are workaday elements of Fluid Mask that help you achieve fast, accurate masking. If you’re not yet familiar with them, it’s recommended that you view our online tutorials that cover these functions first.  Work smarter not harder with Fluid Mask.

Happy Holidays from all at Vertus!

XmasCutoutWP

Patch applied using the (polygon) patch tool

Patch applied using the (polygon) patch tool

First, I isolated the area to be masked using the patch tool to take advantage of the advanced blending options this offers. I’ve used the polygon option here, clicking for anchor points as I go, but you could also use the patch brush. However it’s applied, make sure your patch stays reasonably close to the area to be masked, to ensure there’s not too much bleed into the background area to be deleted.

The color workspace, with 'keep' areas selected

The color workspace, with ‘keep’ areas selected

Using the colour workspace, in this instance as a 2D colour map, I then selected the areas within the patch to keep. The colour map allows you to select areas by clicking and dragging a marquee over the area of interest or by sampling a color directly from the image (more about that below). The selection is highlighted yellow in the 2D colour map and also within the image. I then assigned the selection as a keep mask by clicking the green keep mask bucket icon to the left of the workspace. Having made my initial keep selection, I was able to see the results by clicking preview in the patch properties:

'Preview' enabled within Patch Properties

‘Preview’ enabled within Patch Properties

An impressive first pass. To make sure I’ve included all the pine needles and snow, I went back to the colour workspace to apply a blend to my keep selection (see below). It can be easier to see what you are doing by clicking the green eye in the colour workspace, turning off visibility of the keep selection, leaving visible the remaining unassigned pixels in the color map.

fig4

The color map with the green keep selection turned off

Using the colour sampler, I took selections directly from within the image, selecting areas to keep by sampling the colours from the tree’s needles, snow and the bauble. These selections will appear yellow in the color workspace, it was easy to then expand the selections by selecting similar colours from within the workspace. It’s a great way to fine tune your keep/delete/blend selections, you select colors either directly from your image (using the Color Sampler) or in the color workspace display itself. In both cases, the selected colors are highlighted yellow in the image and the color map.

Fig5

Keep mask with blend applied using the colour workspace. Notice there’s now no pixels showing in the workspace histogram, as both keep and blend selections are hidden.

As the whole of the keep area is fairly sharp, I’ve set the intelligent blending slider all the way over to ‘smart’ and set complex edge blending to ‘sharp’ for a perfect result:

Fig6

With one click I then applied delete mask to the rest of the image (the red delete local brush) and hit create cutout. Job done. Work smarter not harder with Fluid Mask!

MerryXmasFromVertus

Posted on December 16, 2013 pm31 4:25 pm

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