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So cropping images in something fairly straightforward I imagine most of you have done this in markets
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of wood or using your iPhone or any image editing software.
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It basically refers to extracting part of the image that you want.
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Hence you're moving the excess.
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So in this example here we just wanted to censor the rooftop of love.
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And that's what we get here.
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So let's take a look at how we do this and up NCB so you can see we actually doesn't have a direct cropping
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function.
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However it still easily done using them.
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And that's done in this line right here.
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So what number allows us to do is we can put our image right here and then using the indexing tools
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or Shin's in methods we finally started to enroll in a start and them and separated by a comma.
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And that basically extracts direct Hangal that we wanted in or well wanted to crop out initially.
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So the defined start row and start all we actually Lebow we lower the heights and it went for this and
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we actually take 25 percent of the height and 25 percent have to wait and then when 75 is 75 percent
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of the height and width.
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That gives us the exact center point of the move as you saw in the previous slide.
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Yeah.
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So as I just approximate it.
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What that do is I mentioned should be so basic starter a 25 percent here.
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Just sit at this distance from here to here is 25 percent and this distance from here to here is 75
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percent of the image.
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And similarly for columns here.
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So you can play with those values if you want to get into actual bodies.
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I just did this to make it easier to modify.
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So let's run this code and see how it works.
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So original image and this is a cropped image.
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It actually works fairly well.
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So let's show of strength overly this here.
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So you can actually understand a bit more what I did here.
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So by saying 75 25 percent rule with here I'm seeing start position of the rows you want to extract.
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Starts Here.
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That's 25 percent point and 75 percent point starts here.
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Actually these are homes or homes.
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And similarly with rows 25 percent starts here.
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As you can see is 25 percent from here to here and 75 percent value starts from here to here.
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So that's exactly how we get this cropped image here.
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And if you ever need to use this cropped image for anything else it actually stores it as corrupt.
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All these stories are cropped image here from a well known by indexing and that can be used for many
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other things going forward.
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So that's it for cropping.
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