How to Calculate the Area of a Scanned Image

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Calculating the area of a scanned image is something you can do quite easily with a really simple equation. Calculate the area of a scanned image with help from an art director in this free video clip.

Part of the Video Series: Digital Pictures & Graphics
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Video Transcript

Hi, I'm Michael Mondragon from Nerdy Connections. Today, we're going to calculate the area of a scanned image and as easy as knowing where to look. Okay, we're going to calculate the size and, of these images and what we need to do is we first need to know just where to look. And if you go into Photoshop, you go under image and go to image size. That's going to give you the dimensions of this. And we see that we can also adjust this as well. So, right now, this is just a little over ten inches at a 350 dpi; 350 is probably very good for printing. If we wanted to make this more for web or viewing on any devices, we probably want to make this 72 inches and that will keep our, or 72 dpi and that will actually, we're going to commit to that, it will actually make it a lot smaller, but it will keep it at the same ten inches. And if we go over to this photo, now, just looking at it, you don't know what size it is; if you were to look at the ruler up here, you can kind of gauge it. But, you actually get the most information by going to image size and you can see exactly the dimensions. Now, you can either get the inches, you can actually adjust the percentages, this will be at a 100 percent if we were to take it down to 85 percent. As you see, only one change here, we can actually constrain the proportions which will actually take, if I do that 80, it will be 80 percent on both of them. We'll put that back to a 100. I can do centimeters, but let's go back into this, we can actually make this centimeters, 31.7 millimeters would be 316.99. So, you can actually have a lot of flexibility here; points, picas, whatever you need, columns as well. And to adjust this, you can actually go into whatever, if you needed it, say it's six inches, you can actually constrain these proportions and you can make it six inches so it fits into what you wanted to. Let's go to another image and we can actually see this and actually again, here's another sign. And we go to the image, this actually, image is actually lower, it's actually at a lower dpi. So, it probably won't be good for printing, but it's actually perfect for web because it's 72 dip and just under 12 inches here. So, that's how you calculate the area of a scanned image. I'm Michael Mondragon of Nerdy Connections and you can look me up at nerdyconnections.com. We'll see you next time.

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