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INF1090 Part Deux Photography- Photomanipulation.

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Presentation on theme: "INF1090 Part Deux Photography- Photomanipulation."— Presentation transcript:

1 INF1090 Part Deux Photography- Photomanipulation

2 Open up GIMP 2! We are going to explore how we can edit photos and make them better. And yes, it’s actually called GIMP. This unit will show you a variety of editing techniques, from the very simple to more advanced offerings. This slideshow is a guide on what you will do with your own photos. Feel free to follow along with the examples before you do your assignment.

3 First Steps We are going to look at some simple things we can do to edit our pictures Have fun!

4 GIMP Tools Editing Area

5 Cropping a photo Open an image in GIMP that you took Find an image where there is too much of something that you want to get rid of. Find the Rectangle Tool in the toolbar and click on it

6 This one

7 Once you have selected the area, go to Image -> Crop to Selection

8 Voila Now all I have is the two people, and not the freaky thing in the pool.

9 Adding Filters Filters can add an interesting flare to your photos They can make your picture look more interesting or mysterious Be careful! Filters can make things look tacky if overused. Find one that looks good! You can increase the intensity or the amount of the filter that is used using a slidebar.

10 Filters Here is where they are

11 I used the Cartoon filter

12 Under the ‘Distorts’ option I chose ‘Emboss’

13 We can also adjust how bright or dark our images are

14 Brightness/Contrast Brightness controls how dark or light the image is Contrast adjusts the intensity between the dark and light colours, or black and white.

15 Before After

16 Adjusting Colour The previous example was black and white. Let’s see what we can do with a colour image.

17 Go to Colours -> Colour Balance You can manually adjust which colours appear in your image. Look at this drastic change in appearance.

18 Go to Color- Hue/ Saturation Here you can control: The colours used The brightness The intensity

19 Adding Text Now we will look at adding text to an image. Click on the big A button to get the text function.

20 Text

21 Some Text I added this text to the top of my page Notice that it also appears as its own Layer. Layers are like pages we can past different things on.

22 Add more text The text is hard to read as it is, so I want to put the same text behind it in another colour. I will duplicate the text layer. Right-click on the layer that has the text and click Duplicate Layer


24 Click on the old text layer It is now underneath the new text layer Change the colour of the text using the text tools on the left side of GIMP My original text was red, so I changed this new colour to black, which will contrast with the red. This is a useful thing to do to make your text look more visible when put on another image.

25 See what I did?

26 Assignment 1 Using one of your photos, crop it and add a filter to it Change the brightness and contrast to a more suitable level Change either the Colour Balance or the Hue/Saturation Add text to the image, with a duplicate layer offset behind it to create clarity Record what you did and why Discuss your results. Do you like it?

27 Fixing Mistakes Photo editing software is a great way to fix things that have gone wrong. The great thing about this software, is that we can work with things called Layers. Layers are like separate transparent pages we can put things on. If we do something on one layer, it will not show up on another. Layers are a great way to enhance things or make mistakes without worry of what you can do to your original image. As a rule, NEVER EVER work on your background image. Always make a layer copy.

28 The Layers- How to View Them

29 Duplicating your original image The new little box you see will show you all of your layers

30 Uh Oh As you can see, this man did a bad job making himself look good on eHarmony. Let’s help him out. Clearly he needs some better editing skills.

31 Copy the image into a new layer

32 We need to fix this area

33 Find the Colour Picker Tool This tool will sample the colour in a part of the picture that you click on In this example, we want to Select the wall colour.

34 I used the Paintbrush tool After selecting the colour with the eyedropper, I painted over the area that looked wrong. This still doesn’t look good enough. There is something else we can do.

35 Delete the previous layer Make another background copy. This time, we will use the clone stamp tool. Hold down the CTRL key and select the area to Copy. The clone stamp tool will copy And replace a section of the image In this case, we want to copy the Background.

36 Making Adjustments You can adjust the size of the brush that you use Changing the Opacity changes how see- through or solid what you are doing will be It is a good idea to not make things Have a low transparency when first editing

37 I got rid of his extra-wideness

38 Making things Funny With Dennis Rodman. Create a copy of your background layer.

39 Add Transparency to the Layer You need to do this so that you can erase parts of it later. Click on Alpha Channel to do this.

40 Another Mouth to Feed Using the Stamp tool, I put another mouth on his forehead on the new layer. Hold down CTRL!

41 More I want to get rid of the extra stuff around his new mouth. To do this, use an eraser and adjust its size and opacity.

42 End Result

43 Assignment 2- Using Layers, Effects and Rubber Stamp Get a picture of someone or yourself Add some new interesting features to yourself A 3 rd arm, another head? We want to use the tools we have learned, like the rubber stamp and lasso, magic wand We want it to look funny, but realistic and blended together Adjust the layers with contrast to match things better

44 The Pen (Paths) Tool

45 A powerful tool to trace over images

46 How to Use Click on this tool here

47 How to Use We need to see the different Paths we will use, like how we can see and select different layers, so go and enable this feature to appear in your tools:

48 My Object I am going to trace the car The first thing I will do is zoom in using the + key

49 The first thing I will trace is the wheel well I click and drag with the mouse, making a straight line I will then click HERE to make the line curve

50 We get this: By holding down the CTRL key you can move the curve around so that it matches the shape you want it to.

51 Voila (close enough)

52 Make a new Path Each time you make a new path, make the new path in your dialogue box

53 Repeat this Process Until you have everything traced that you need!!!!!!! Tip: for straight lines with this tool all you have to do is click where it starts and where it will end, you do not have to drag the mouse

54 Make a new Layer We will paint on this this layer

55 Adding Colour Go here to Stroke (paint) the path. Right-click on a path to choose this option.

56 There are lots of options Your colour The style

57 In my example here I traced the object in a variety of colours and sizes. I then added a Gradient background to my image.

58 Assignment 3 -Pathways Use different paths to trace around an image Use different colors to increase the detail Put a gradient background in your image.

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