GIMP/C2/An-Image-For-The-Web/English
From Script | Spoken-Tutorial
Time | Narration |
---|---|
00:22 | Welcome to Meet the GIMP. |
00:24 | My name is Rolf Steinort and I am recording this in Bremen, Northern Germany. |
00:30 | I wanted to do a video podcast about the GIMP. |
00:33 | The GIMP is the very powerful image manipulation program. |
00:36 | It is a free and open source software and it runs on Linux, Windows and Mac Operating Systems. |
00:46 | It is an open source equivalent of the popular graphics editing program - Photoshop. |
00:54 | The GIMP is maintained and enhanced by a group of dedicated volunteers and has provided me with the means to post and process my photographs on the Linux computer. |
1:05 | Now I want to give something back. |
1:07 | I am not very good at coding and hence cannot contribute on that way. |
1:13 | But I am a teacher by profession and hence I can teach others to use GIMP. |
1:18 | First I thought about writing tutorials. But John Arnold's ‘Photo Walks Through’ inspired me to use screen-casting to create video tutorials. |
1:27 | In this 1st tutorial, I want to give you a small tour of GIMP and its features. I will briefly demonstrate how to prepare an image for the web. |
1:35 | I will give detailed explanations in future tutorials. |
1:40 | To open an image, I will just drag and drop the image on the tool box. |
1:45 | And here it is! |
1:49 | Let’s have a look at this image. |
1:52 | I shot this at the market place in Bremen. You saw other images of that during the introduction. |
1:59 | There are always tourist shooting pictures of our town hall. |
2:03 | And I caught this funny moment where 3 people were shooting the town hall with cameras in front of their faces. |
2:13 | I want to make this image ready for the web. |
2:18 | Lets see what I can do with it. |
2:20 | First the image is tilted so I have to rotate it a bit. |
2:25 | Then I want to crop it to remove this part - the back of a person. |
2:32 | The 3rd thing I want to do is to bring in more colors and contrast. |
2:41 | I also want to re-size the image because now its nearly 4000 pixels wide, which is far too much. |
2:50 | And then I want to sharpen it and save it as a JPEG image. |
2:57 | Let’s start with rotating. |
2:59 | I zoom into the part of the image where it is most obvious that the image is tilted. You can see it here. |
3:08 | By the way, you can move around in the image by pressing Space and just moving the cursor. |
3:18 | And now I choose the Rotate tool by clicking here. |
3:22 | In the Rotate tool, there are some options set by default to values suited for graphical work and not for photographic work. |
3:34 | So here Direction is set to Normal(Forward) but I will set it to Corrective(Backward). |
3:38 | I check if I have the best Interpolation. So that's fine. |
3:43 | And in the Preview grid I choose Grid instead of Image. |
3:49 | I shall increase the no. of grid lines by moving the slider. You will see it soon. |
3:57 | Now I will click on the image and get a grid overlaid over the image. |
4:05 | This grid is straight. |
4:10 | And I can rotate it and GIMP will rotate the image in the same direction in the Corrective mode so that the grid is straight again. |
4:23 | Let me demonstrate. I will rotate the grid like this. |
4:28 | I will check the other part of the image to make sure. |
4:32 | Looks good to me. |
4:36 | Now I will click on the Rotate button. |
4:40 | This will take some time since the image is about 10 mega-pixels |
4:49 | And its done! |
4:54 | The image has rotated. |
4:56 | Lets have a look at the whole picture. Shift + Ctrl + E brings us back to the image. And here it is! |
5:05 | Next step is Cropping. |
5:07 | I chose the Crop tool by clicking here. |
5:11 | I want to keep the aspect ratio of the image as 3:2. |
5:16 | For that I check Fixed Aspect ratio here and type in 3:2. |
5:26 | Just clicking to come out of that box. |
5:29 | And now, I can start cropping. |
5:35 | I want to include the feet of this person here but exclude this part of the image. |
5:42 | So I start here at this point and pressing the left mouse button, I drag upward towards the left to select the area. |
5:51 | Note that the aspect ratio is constant. |
5:56 | And now I have to decide how far to drag. |
6:02 | I think this is quite good. |
6:08 | Let’s checks the borders. |
6:11 | We have excluded this part. There is a person sitting here. |
6:18 | I think there is enough room here for the person to be in the picture. |
6:25 | So I will leave it that way since it looks nice. |
6:31 | There are windows here on the top. |
6:34 | And there is enough of them in the image to see them as windows. |
6:40 | But I think there is not enough room around here at the feet. |
6:43 | So I'll just click on the image, left-click on the mouse and drag it a bit down. |
6:50 | I think this is good now. |
6:53 | But now there is not enough windows seen here and the person seated here is very near to the border. |
7:00 | So lets make the image a bit larger. |
7:06 | We are running into a problem here. Perhaps you can see it. |
7:13 | This happened during the rotation. |
7:19 | There is a small part here which is transparent now. |
7:24 | I don’t want to include that, so lets go back to Crop tool. |
7:33 | I want a bit more room here; so I am dragging this up. |
7:41 | Not so far. |
7:46 | I think this is quite good. |
7:49 | Now just click on the image and here we have the cropped & rotated image. |
7:56 | Shift + Ctrl + E brings us back to the full view. |
8:03 | Next step is to boost the colors & contrast a bit. |
8:09 | There are several ways here. I could use the color levels - here it is, the curves or some sliders. |
8:22 | But I will try doing this with layers. |
8:27 | I simply make a copy of this layer here. |
8:32 | And change the layer mode to Overlay. |
8:39 | And you can see its a very strong effect. I don’t want to have it that much. |
8:45 | So I slide the opacity slider down to a value where I think its looking good. |
8:59 | Little more perhaps. |
9:02 | Ok, I think this is good enough. |
9:06 | I can always change that unless I right click the mouse here to go to the channel list and say 'Flatten image' or 'Merge visible layers'. |
9:20 | Then all the changes become permanent. |
9:23 | Except if I go into History here and go back and undo the history. |
9:30 | But we’ll cover that later. |
9:34 | Next step is Resizing. |
9:37 | I will click on the Image menu & select Scale Image option. |
9:48 | Here I will just type in 800 pixels. |
9:59 | And I get the value for the height automatically. |
10:04 | When I unlock this link here, I could distort the image while re-sizing it. |
10:11 | Interpolation. |
10:14 | I think I will choose Cubic. I found that the highest layer here gives some art effects with brick buildings. Its strange and I will have to check that out. |
10:31 | Now click on Scale. |
10:35 | And we’ll look at the result |
10:39 | Shift + Ctrl + E gets us the whole image. |
10:44 | And when I press 1, I get 100% zoom. |
10:51 | Now we can look around in the image to see if we have any really disturbing or distracting stuff. But I personally think it worked out well. |
11:10 | Next step is Sharpening. |
11:17 | My lens is quite good and my camera too. But we have manipulated the image. So it has to be sharpened a bit. |
11:28 | I will select Filters and click on Enhance and here is Sharpen. I could also use the Unsharp mask which is very powerful sharpening tool. But for now, Sharpen is enough. |
11:49 | This tool has basically only one option which is the sharpness slider. It can be adjusted and its enough for such an image. |
12:07 | This is the unsharpened image and when I drag this slider, the image gets sharpened more and more. You get a very funny effect if you slide it too far. |
12:23 | I think for this image this value is good. |
12:30 | The hair looks clearer now but here you can see some bleeding or distortion. |
12:38 | So we will slide it down and this is better. |
12:44 | I would like to go for soft effects rather than have any distortion in the image. |
12:52 | They are proof that you have manipulated the image. |
12:58 | So lets look at the result. |
13:05 | It looks quite good. |
13:09 | And now the last step is Saving this image. |
13:13 | I will go to File and click on Save As and just change the original file extension ‘tif’ to ‘jpg’ |
13:27 | and Click on the Save button. |
13:30 | I get a warning that the JPEG can't handle images with multiple layers. Ok. So we have to export them. |
13:42 | I think 85%is a good standard value for this image. |
13:51 | So I have saved this image as JPEG image here. |
13:59 | You can look at it in full screen. |
14:03 | Here it is. |
14:05 | This is it. The first tutorial of Meet the GIMP. In future tutorials, I will cover topics like how to set up GIMP, how to draw, convert, etc. and tools and many more. |
14:13 | If you want to send a comment, please write to info@meetthegimp.org |
14:20 | More information is available at http://meetthegimp.org |
14:30 | I would like to hear from you. Tell me what you liked, what I could have made better, what you want to see in the future. |
15:00 | This is Hemant Waidande dubbing for the Spoken Tutorial project. |