1 00:00:02,640 --> 00:00:05,560 We talked about how wonderfully quick 2 00:00:05,560 --> 00:00:08,050 it is to use the mobile devices and that's 3 00:00:08,050 --> 00:00:10,820 one of the things that's so terrific about it. 4 00:00:10,820 --> 00:00:14,210 But the camera in most of the devices 5 00:00:14,210 --> 00:00:18,100 are not only low resolution, which is a problem, 6 00:00:18,100 --> 00:00:21,040 but they're also very wide angle lenses 7 00:00:21,040 --> 00:00:25,090 so we have a lot of distortion in most of the images 8 00:00:25,090 --> 00:00:28,480 when we see it in a particular kind of image 9 00:00:28,480 --> 00:00:30,150 as we're doing here. 10 00:00:30,150 --> 00:00:34,140 When I quickly made this image in our provost's office, 11 00:00:34,140 --> 00:00:37,480 in fact, I was very lucky that he 12 00:00:37,480 --> 00:00:40,610 wanted to hang some of the pictures I made of his work 13 00:00:40,610 --> 00:00:42,440 from years ago in his office. 14 00:00:42,440 --> 00:00:46,470 And I had about 30 seconds to make the image showing the, 15 00:00:46,470 --> 00:00:49,590 let's call it "art" at this point, on the walls. 16 00:00:49,590 --> 00:00:52,850 And you see that the image has problems. 17 00:00:52,850 --> 00:00:58,070 It's distorted, because of the nature of the camera. 18 00:00:58,070 --> 00:01:01,480 So what I did was I selected the image 19 00:01:01,480 --> 00:01:05,450 and then I went to image distort, 20 00:01:05,450 --> 00:01:09,560 where I then tried to undistort it. 21 00:01:09,560 --> 00:01:14,090 I placed the grid on top to help me figure out actually 22 00:01:14,090 --> 00:01:17,470 exactly how much to move the image, 23 00:01:17,470 --> 00:01:21,039 and played around a little bit, and then I 24 00:01:21,039 --> 00:01:22,930 think I pretty much got it. 25 00:01:22,930 --> 00:01:27,100 I went to the cropping tool to make 26 00:01:27,100 --> 00:01:30,270 it as symmetrical as possible. 27 00:01:30,270 --> 00:01:35,160 And I think that after these couple of manipulations, 28 00:01:35,160 --> 00:01:39,500 we can get a more straightforward image, 29 00:01:39,500 --> 00:01:41,570 just moving your things around a little bit 30 00:01:41,570 --> 00:01:46,520 and just trying to make it a truly symmetrical image, which 31 00:01:46,520 --> 00:01:48,160 I think we did here. 32 00:01:48,160 --> 00:01:52,550 And I want you to just take a look at the first image 33 00:01:52,550 --> 00:01:56,770 that I made and then compare it to be more 34 00:01:56,770 --> 00:01:59,460 undistorted or fixed image. 35 00:01:59,460 --> 00:02:02,190 And this is what you can do when you're 36 00:02:02,190 --> 00:02:04,630 looking at mobile devices that you really 37 00:02:04,630 --> 00:02:08,231 do distort the image, which is not what we want.