1 / 31

Lesson 1 – Objectives

Lesson 1 – Objectives. Understand what a bitmap is Understand what image resolution means Using selection in GIMP Using layers and background erasing to create a combined image. Bitmap images. This is a family of images which are made up of tiny dots. Each dot will have a different colour.

sharla
Download Presentation

Lesson 1 – Objectives

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lesson 1 – Objectives Understand what a bitmap is Understand what image resolution means Using selection in GIMP Using layers and background erasing to create a combined image

  2. Bitmap images This is a family of images which are made up of tiny dots. Each dot will have a different colour. Combined they produce an image All photos and most images from the internet will be bitmaps.

  3. Jaguar at 50% (or half the original size)

  4. Jaguar at 200% (double size)

  5. Jaguar at 1000% (or 10x zoom)

  6. Pixels and resolution Notice the dots? These are known as pixels. The more pixels on the screen the higher the quality. We measure pixels by counting the number of pixels vertically and horizontally. This is known as resolution.

  7. Low resolution Vs high resolution 128 x 128 1600 x1200

  8. Resolution in google Each image has it’s resolution under it in google!!

  9. Bitmap file formats BMP – Windows bitmap (very large files) JPG – Jpeg. These images are heavily compressed and sometimes loose quality. GIF – Used for drawings. Can only have 256 colours!! This is known as indexed. Supports transparency PNG – Good mixture of compression and quality. Supports transparency

  10. Image manipulation Programs such as GIMP, photo shop and paint shop pro are known as image manipulation programs. They allow bitmap images to be manipulated. They are essential when creating high quality publications.

  11. Your task today • You are going to create a film poster. • Your poster will be made in sections in GIMP • We will break your poster down into the following sections • Main foreground image • Background • Title + slogan • Other text (like actors etc)

  12. Sections Background Foreground image Title Extra text slogan

  13. Getting started • Your film must be made up. • It can be a parody of a old film or a brand new one • Decide on this first before you continue. • Take a few minutes to decide this. Decide • On the title • On the genre (rom com, thriller, sci-fi etc) • Actors • Be imaginative. For example you could have yourself as the main actor/actress!

  14. Getting the foreground image Now find a high quality (high resolution) image to act as the foreground. This could be a photo if you want to use yourself or a friend as the main character. It does not have to be a person, it could be a car or anything which fits in with your film.

  15. Task Find 3 high resolution images to use for your film poster. Note – Do not worry about your choice. The key here is practicing skills!

  16. My main image

  17. Removing the background

  18. Tools to use The “portrait” tool. To use this you must – Draw roughly around the shape you want. Make sure you create a complete loop. Draw on the foreground image. The background should turn blue. Any blue parts on your main image just draw over them! Any parts of the background which are NOT blue then you must hold [CTRL] on the keyboard and then draw over it.

  19. More tools The magic wand tool (or fuzzy select) will select areas which are similar in colour. This can be used to remove areas which might have been missed by the portrait tool This tool selects ALL colours which match the one you click on. Can be very useful!

  20. Video help! You can watch this video to help!

  21. Changing faces Next we are going to replace the face. We need to find a face which is looking in the same direction in order for it to “work”.

  22. Removing the face Again you can remove the background AND the body using the same tools.

  23. Smoothing If you get any “jagged” edges you can smooth them out using this tool

  24. Copy and paste Jonathon Ross is now Neo! This does not look great. We need to get the gun in front of Mr Ross.

  25. Duplicate the background Make a copy of the background and add it as a new layer. This new layer will be the “gun”. You can duplicate a layer by selecting it and click on the icon shown below

  26. Move the gun layer

  27. Showing the face underneath! You can rub out Neo’s face to get Jonathon’s instead. Again you can use the skills already used to help. You will need to smooth things out after editing as it is easy to make mistakes!

  28. Note! This is MUCH easier with high resolution images. If you find the image is too difficult then choose something else. There is a limit on how much editing you can do in order to improve an image.

  29. Version 2 – Gun in front of Mr Ross

  30. Step 3 – Remove old parts of neo from the background.

  31. Task Remove the background from a second image Combine the two images together Extension – Save the image as a PNG file and then import the image into publisher. Complete the poster in publisher.

More Related