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Viewing and modifying control point masks

From: Up and Running with HDR Efex Pro 2.0

Video: Viewing and modifying control point masks

When you're applying selective adjustments in HDR Effects Pro, using control points, you'll naturally be focusing your attention on the image itself as you apply those targeted adjustments. But at times, you might want to actually see a better sense of exactly where in the image that control point is affecting. Let's take a look at how we can review and adjust our control points accordingly. Let's assume that I want to apply an adjustment that affects primarily the sky. I can click on my Control Points button, and then click inside of the sky.

Viewing and modifying control point masks

When you're applying selective adjustments in HDR Effects Pro, using control points, you'll naturally be focusing your attention on the image itself as you apply those targeted adjustments. But at times, you might want to actually see a better sense of exactly where in the image that control point is affecting. Let's take a look at how we can review and adjust our control points accordingly. Let's assume that I want to apply an adjustment that affects primarily the sky. I can click on my Control Points button, and then click inside of the sky.

In order to add a control point. I can adjust the overall size of that control point an then apply a variety of different adjustments to that control point, but I'm really focusing most of my attention then on the image itself. And I don't have necessarily a clear picture in my head of what exactly the area that I'm affecting looks like. I know it's generally the sky, but what area specifically? Well, if you want to see which area of the photo is being affected by a control point, you can simply click on that control point to make sure it's the active control point.

You can also select it from the list of control points in the Select Of Adjustment section. I'll actually only have a single control point in this case, so that makes things very easy. I can then turn on the check box over at the far right for that control point. And then I'll see a grayscale view of what that control point looks like. Areas of the image that appear in white are being completely effected by the adjustments I've applied with this control point. And areas of the image that are completely black, are not being effected at all. Shades of gray represent areas that are being partially effected. So, for example, if an area of the mask for the control point appears as 50% gray, that means the adjustments for that control point are effecting that portion of the image at half of the full strength.

Now while I'm viewing the actual mask for the control point I can also adjust the size and position of that control point. So I'll go ahead and adjust the size by dragging the slider and you can see a very clear indication of which portions of the image are being affected. I can also move the control point by simply clicking and dragging the handle. For that control point, positioning it into a different area of the photo for example. And in this way I can help focus the adjustment exactly where I need it within the image. I'll go ahead and turn off the mask for this control point and then add an additional control point.

In this case, perhaps for these reddish, sort of brown tones within the building in the background here. I'll go ahead then and turn on the visibility for that control point and then you can see as I adjust the the overall size for the control point, we're able to see which portion of the image is being affected. So as I move around to different portions of the photo, you'll see that I can get a dramatically different result for my control point based on the color and tonality of the pixel that falls below my mouse within the image. So in this way, viewing the mask for the control point, I'm able to focus an adjustment to a specific area of the image based on the size and position of that control point.

And in addition to being able to turn on individual control points, I can also turn on multiple control points, so that I'm seeing all areas of the image that are getting targeted adjustments. I can also click on the mask button above the check boxes in order to turn on or off the display of all control points in either the mask view, or going back to the full image display itself. So you can see, the ability to view a mask associated with the control point can be very helpful as you fine-tune exactly which portion of the image you're applying a selective adjustment to.

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Up and Running with HDR Efex Pro 2.0

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Tim Grey
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